{"id":2581,"date":"2023-11-13T23:38:09","date_gmt":"2023-11-13T22:38:09","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2581"},"modified":"2023-11-13T23:38:09","modified_gmt":"2023-11-13T22:38:09","slug":"checking-fuel-pressures-and-for-internal-leaks","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/13\/checking-fuel-pressures-and-for-internal-leaks\/","title":{"rendered":"Checking fuel pressures and for internal leaks"},"content":{"rendered":"

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07.3\u2014120 Checking fuel pressures and for internal leaks<\/strong><\/div>\n<\/div>\n<\/td>\n
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A. Standard version<\/div>\n<\/div>\n<\/td>\n
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Test values in bar gauge pressure<\/strong><\/div>\n<\/div>\n<\/td>\n
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Engine<\/div>\n<\/div>\n<\/td>\n
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110.984\/985 110.986\/987<\/div>\n<\/div>\n<\/td>\n
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110.988\/989 110.990<\/div>\n<\/div>\n<\/td>\n
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System pressure at idle with engine cold or at operating temperature<\/div>\n<\/div>\n<\/td>\n
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5.0-5.6<\/div>\n<\/div>\n<\/td>\n
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Control pressure at idle with engine at operating temperature<\/div>\n<\/div>\n<\/td>\n
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Warm-up compensator stabilized<\/div>\n<\/div>\n<\/td>\n
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3.4-3.8 at 530 mbar1<\/sup>)<\/div>\n<\/div>\n<\/td>\n
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3.6-4.0<\/div>\n<\/div>\n<\/td>\n
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Full load enrichment at idle (vacuum hose pulled off)<\/div>\n<\/div>\n<\/td>\n
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2.8-3.2<\/div>\n<\/div>\n<\/td>\n
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Control pressure according to ambient temperature at idle with engine cold<\/div>\n<\/div>\n<\/td>\n
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min. 0.5 (refer to<\/div>\n<\/div>\n<\/td>\n
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diagram)<\/div>\n<\/div>\n<\/td>\n
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l) If control pressure is not attained, check intake manifold vacuum (section „Checking control pressure at idle with engine at operating temperature”).<\/div>\n<\/div>\n<\/td>\n
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Special tools<\/strong><\/div>\n<\/div>\n<\/td>\n
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Pressure tester<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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102 589 00 21 00<\/div>\n<\/div>\n<\/td>\n
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Clamp for hose lines<\/div>\n<\/div>\n<\/td>\n
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000 589 40 37 00<\/div>\n<\/div>\n<\/td>\n
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Conventional tools<\/strong><\/div>\n<\/div>\n<\/td>\n
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Voltmeter, ohmmeter<\/div>\n<\/div>\n<\/td>\n
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Screw driver element 992\u2014T 30<\/div>\n<\/div>\n<\/td>\n
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e.g. made by Hazet, D-5630 Remscheid<\/div>\n<\/div>\n<\/td>\n
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07.3.2 I la\u2014120\/1 F2<\/div>\n<\/div>\n<\/td>\n
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Self-made tool<\/strong><\/div>\n<\/div>\n<\/td>\n
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Contact bridge<\/div>\n<\/div>\n<\/td>\n
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Note:<\/strong><\/div>\n<\/div>\n<\/td>\n
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Prior to working on injection system, check firing point, spark plugs and idle speed adjustment.<\/div>\n
Perform leak test only in the event of complaints about hot starting.<\/div>\n
After stopping the engine, the fuel pressure should still amount to 2.5 bar gauge pressure after 30 minutes.<\/div>\n<\/div>\n<\/td>\n
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Visual checkup<\/strong><\/div>\n<\/div>\n<\/td>\n
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1 Remove air cleaner.<\/div>\n<\/div>\n<\/td>\n
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2 Check all fuel connections for leaks.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 lla-120\/2 F2<\/div>\n<\/div>\n<\/td>\n
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3 Check for easy operation of adjusting lever (1) in air flow sensor and control piston (2) in fuel distributor For this purpose, proceed as follows:<\/div>\n<\/div>\n<\/td>\n
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Mixture controller with <\/strong>safety switch<\/div>\n
Pull plug from safety switch (3), switch-on ignition for a short moment to build up control pressure.<\/div>\n<\/div>\n<\/td>\n
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Mixture controller without <\/strong>safety switch<\/div>\n
Pull off fuel pump relay and bridge the two jacks for a moment to build up control pressure.<\/div>\n
Prior to September 1981: Jacks 1 and 2. Starting September 1981: Jacks 7 and 8.<\/div>\n
Push air flow sensor (4) down manually. A uniform resistance should then be felt along entire path. No resistance should be felt during fast upward moment, since the slowly following control piston lifts off from adjusting lever. If the upward movement is slow, a control piston should closely follow.<\/div>\n<\/div>\n<\/td>\n
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4 Check control piston in fuel distributor for leaks. Push air flow sensor for a short moment completely down and hold in this position, no fuel should then show up in air guide housing.<\/div>\n
If fuel emerges, replace fuel distributor (07.3\u2014205).<\/div>\n<\/div>\n<\/td>\n
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Connecting pressure measuring device<\/strong><\/div>\n<\/div>\n<\/td>\n
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The pressure measuring device remains connected for all pressure measurements.<\/div>\n
The pressure measuring device 102 589 00 21 00 now remains equipped with a valve screw on three-way vaive <\/em>only.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 lla-1 20\/3 F2<\/div>\n<\/div>\n<\/td>\n
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To relieve sealing rings, keep valve screw or valve screws always open. Connections of three-way valve are numbered.<\/div>\n<\/div>\n<\/td>\n
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Pressure measuring device 1st version<\/div>\n
Connection 1 = hose line on fuel distributor<\/div>\n
Connection 2 = hose line on pressure gauge<\/div>\n
Connection 3 = hose line on released control pressure line<\/div>\n<\/div>\n<\/td>\n
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Pressure measuring device 2nd version<\/div>\n
Connection A = hose line on fuel distributor<\/div>\n
Connection B = hose line on released control pressure line<\/div>\n<\/div>\n<\/td>\n
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11004 -9447M<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0 Unscrew control pressure line (arrow) on fuel distributor (20), while catching fuel with a rag.<\/div>\n
2\u00a0 \u00a0Connect hose line from connection 1 or A to fuel distributor (20) and hose line of connection 3 or B to control pressure line (arrow).<\/div>\n<\/div>\n<\/td>\n
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Checking control pressure at idle in cold engine<\/strong><\/div>\n<\/div>\n<\/td>\n
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3\u00a0 \u00a0Open valve screw or valve screws on pressure measuring device.<\/div>\n
4\u00a0 \u00a0 Run engine at idle and immediately read control pressure.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 I la\u2014120\/4 F2<\/div>\n<\/div>\n<\/td>\n
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Take nominal pressure according to ambient tempera\u00adture from control pressure diagram. If the nominal value is not attained, recondition system pressure regulator (07.3\u2014210), or check input strainer in warm-up compensator. Replace warm-up compensa\u00adtor, if required.<\/div>\n
Example:<\/strong><\/div>\n
Warm-up compensator with Bosch end no. 010 and<\/div>\n
057:<\/div>\n
Ambient temperature +20 \u00b0C = 1.0\u20141.5 bar gauge<\/div>\n
pressure.<\/div>\n
Warm-up compensator with Bosch end no. 103: Ambient temperature +20 \u00b0C = 1.0\u20141.4 bar gauge pressure.<\/div>\n<\/div>\n<\/td>\n
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5 Check stabilizing time of warm-up compensator. Read initial control pressure at +20 \u00b0C. The stabilizing time at 3.4 bar gauge pressure should be within tole\u00adrance. Additional electric consumers switched off, minimum voltage 12 Volts.<\/div>\n
Example:<\/strong><\/div>\n
Stabilizing time at +20 \u00b0C<\/strong><\/div>\n
Warm-up compensator with Bosch end no. 010 = 3\u20146 minutes<\/div>\n
Warm-up compensator with Bosch end no. 057 and 103 = 2-4 minutes.<\/div>\n
Checking system pressure at idle with engine cold or at operating temperature<\/strong><\/div>\n<\/div>\n<\/td>\n
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6\u00a0 \u00a0Close valve screw on pressure measuring device. When measuring pressure, with 2 valve screws, close valve screw at connection 3.<\/div>\n
7\u00a0 \u00a0The system pressure should amount to 5.0\u20145.6 bar gauge pressure.<\/div>\n<\/div>\n<\/td>\n
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8 If the system pressure of 5.0\u20145.6 bar gauge pres\u00adsure is not attained or exceeded, perform the follow\u00ading checkups:<\/div>\n
a)\u00a0 Check delivery capacity of fuel pump (07.3\u2014130).<\/div>\n
b)\u00a0 Recondition system pressure regulator (07.3\u2014210).<\/div>\n
c)\u00a0 Check fuel return flow line for passage.<\/div>\n<\/div>\n<\/td>\n
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9 Re-open valve screw.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 I la\u20141 20\/5 F2<\/div>\n<\/div>\n<\/td>\n
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Checking control pressure at idle with engine at <\/strong>operating temperature<\/strong><\/div>\n<\/div>\n<\/td>\n
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10\u00a0 \u00a0Open both valve screws or valve screw on pressure measuring device.<\/div>\n
11\u00a0 \u00a0 Control pressure should increase to 3.4\u20143.8 or 3.6\u20144.0 bar gauge pressure (warm-up compensator stabilized).<\/div>\n
If the control pressure of 3.4-3.8 or 3.6-4.0 bar gauge pressure is not attained, perform the following checkups.<\/div>\n<\/div>\n<\/td>\n
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Engine 110.984\/985\/986\/987<\/strong><\/div>\n
a) Check intake manifold vacuum. For this purpose, pull off vacuum hose (arrow in fig. item 12) on warm-up compensator and attach a T-fitting for pressure gauge.<\/div>\n
Read intake manifold vacuum and transfer to vacuum diagram.<\/div>\n<\/div>\n<\/td>\n
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Example:<\/strong><\/div>\n
Intake manifold vacuum 400 mbar = 3.5\u20143.9 bar gauge pressure.<\/div>\n
Engine 110.988\/989\/990<\/strong><\/div>\n
The control pressure is not influenced by vacuum from change on warm-up compensator.<\/div>\n
b)\u00a0 Test voltage on warm-up compensator with engine running. Pull electrical connection from warm-up compensator and test voltage. Minimum voltage<\/div>\n
12 Volts (without electrical consumers).<\/div>\n
c)\u00a0 Test heater coil with an ohmmeter for passage. Resistance: 20-40 \u00a31.<\/em><\/div>\n
Replace warm-up compensator in the event of an interruption.<\/div>\n
d)\u00a0 If the control pressure is above 3.6 or 3.8 bar gauge pressure, recondition system pressure regulator (07.3-210).<\/div>\n<\/div>\n<\/td>\n
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Mixture controller with <\/strong>safety switch<\/div>\n
1\u00a0 \u00a0 \u00a0Fuel pump relay<\/div>\n
2\u00a0 \u00a0 Safety switch \u2014 air flow sensor plate<\/div>\n
3\u00a0 \u00a0 Warm-up compensator<\/div>\n
4\u00a0 \u00a0 Fuel pump<\/div>\n
a Terminal 50 (starting) b Terminal 15\/54 (ignition) c Plug connection 14-point tail lamp unit harness<\/div>\n<\/div>\n<\/td>\n
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07.3.2 I la\u20141 20\/6 F2<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Mixture controller without <\/strong>safety switch<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Prior to September 1981<\/div>\n
1 Fuel pump relay<\/div>\n
3 Warm-up compensator<\/div>\n
a To fuel pump<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Starting September 1981<\/div>\n
1 Fuel pump relay<\/div>\n
3 Warm-up compensator<\/div>\n
c To fuel pump<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
12 Check full load enrichment. For this purpose, pull vacuum hose (arrow) from warm-up compensa\u00adtor or at intake manifold, control pressure should then drop to 2.8\u20143.2 bar gauge pressure.<\/div>\n
If a control pressure of 2.8\u20143.2 bar gauge pressure is not attained, replace warm-up compensator.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 lla-1 20\/7 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking fuel distributor and fuel pump for leaks<\/strong><\/div>\n
13\u00a0 \u00a0 Stop engine. Control pressure will then drop be\u00adlow opening pressure of injection valves (approx. 2.8 bar gauge pressure).<\/div>\n
14\u00a0 \u00a0 If the control pressure drops immediately to 0 bar gauge pressure, replace check valve on fuel pump or subsequently install.<\/div>\n
15\u00a0 \u00a0 If the pressure drops slowly, unscrew fuel return line on fuel distributor. Fuel will emerge in the event of a leak on regulator piston or pressure compensating valve. If there is more than 1 drop in 4 seconds, re\u00adcondition system pressure regulator or pressure com\u00adpensating valve (07.3\u2014210).<\/div>\n
16\u00a0 \u00a0Check fuel reservoir for leaks (not included in time rate). For this purpose, disconnect leak line between fuel reservoir and intake damper.<\/div>\n
17\u00a0 \u00a0 Loosen leak line on intake damper and pull off. Loosen clamp, pressureless leaking is permissible. Replace fuel reservoir, if required (07.3\u2014270).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
18\u00a0 \u00a0Check cold-starting valve (98) for leaks. For this purpose, remove cold-starting valve (07.3\u2014125, sec\u00adtion Checking for leaks).<\/div>\n
19\u00a0 \u00a0 Close pressure measuring device, while catching fuel with a rag.<\/div>\n
20\u00a0 \u00a0Connect fuel lines, run engine once again and check all fuel connections for leaks.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 Ha\u20141 20\/8 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
B. National version (aus)<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test values in bar gauge pressure<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator<\/div>\n<\/div>\n<\/td>\n
\n
\n
System pressure at<\/div>\n<\/div>\n<\/td>\n
\n
\n
Control pressure at idle<\/div>\n<\/div>\n<\/td>\n
\n
\n
with engine at operating<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Bosch end no.<\/div>\n<\/div>\n<\/td>\n
\n
\n
idle with engine cold<\/div>\n<\/div>\n<\/td>\n
\n
\n
temperature<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
\n
or at operating<\/div>\n<\/div>\n<\/td>\n
\n
\n
Warm-up compen-<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
Full load enrichment<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
\n
temperature<\/div>\n<\/div>\n<\/td>\n
\n
\n
sator stabilized at<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
idle (vacuum hose<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
530 mbar intake<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
pulled off)<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
manifold vacuum1<\/sup>)<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(aus) starting 1977<\/strong><\/div>\n
Identification: Label silver.<\/div>\n
(T) <\/em>starting 1977<\/strong><\/div>\n
Identification: Label blue.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
030 056 057<\/div>\n<\/div>\n<\/td>\n
\n
\n
5.0-5.6<\/div>\n<\/div>\n<\/td>\n
\n
\n
3.4-3.8<\/div>\n<\/div>\n<\/td>\n
\n
\n
2.8-3.2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
-1980<\/strong><\/div>\n
Identification: Label in Japanese language.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
031<\/div>\n<\/div>\n<\/td>\n
\n
\n
5.0-5.6<\/div>\n<\/div>\n<\/td>\n
\n
\n
3.0-3.4<\/div>\n<\/div>\n<\/td>\n
\n
\n
2.8-3.2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(@) 1977-1979<\/strong><\/div>\n
Identification: Label black.<\/div>\n
Identification: 1979 <\/strong>label Federal black, California yellow.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
030<\/div>\n<\/div>\n<\/td>\n
\n
\n
Federal<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
3.4-3.8<\/div>\n<\/div>\n<\/td>\n
\n
\n
2.8-3.2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
041<\/div>\n<\/div>\n<\/td>\n
\n
\n
Federal high altitudes<\/div>\n<\/div>\n<\/td>\n
\n
\n
1977<\/div>\n<\/div>\n<\/td>\n
\n
\n
5.0-<\/div>\n<\/div>\n<\/td>\n
\n
\n
-5.6<\/div>\n<\/div>\n<\/td>\n
\n
\n
3.6-4.0<\/div>\n<\/div>\n<\/td>\n
\n
\n
3.0-3.4<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
031<\/div>\n<\/div>\n<\/td>\n
\n
\n
California<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
3.0-3.4<\/div>\n<\/div>\n<\/td>\n
\n
\n
2.8-3.2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
If the control pressure is not attained, check intake manifold vacuum (refer to section „Checking control pressure at idle with engine at operating temperature”).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 Ma\u20141 20\/9 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator<\/div>\n<\/div>\n<\/td>\n
\n
\n
System pressure at<\/div>\n<\/div>\n<\/td>\n
\n
\n
Control pressure at idle<\/div>\n<\/div>\n<\/td>\n
\n
\n
with engine at<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Bosch end no.<\/div>\n<\/div>\n<\/td>\n
\n
\n
idle with engine<\/div>\n<\/div>\n<\/td>\n
\n
\n
operating temperature<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
\n
cold or at operating<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
\n
temperature<\/div>\n<\/div>\n<\/td>\n
\n
\n
Warm-up compen-<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
Acceleration enrich-<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
sator stabilized at<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
ment with engine<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
530 mbar intake<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
stopped and 0.5 bar<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
manifold vacuum1<\/sup>)<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
vacuum at warm-up<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
<\/div>\n

 <\/td>\n

\n
\n
compensator<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(T) starting 1981<\/strong><\/div>\n
Identification: Label in Japanese language.<\/div>\n
(@) 1980\/81<\/strong><\/div>\n
Identification: Label Federal black.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
067<\/div>\n<\/div>\n<\/td>\n
\n
\n
5.0-5.8<\/div>\n<\/div>\n<\/td>\n
\n
\n
3.4-3.8<\/div>\n<\/div>\n<\/td>\n
\n
\n
1.4-1.8<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
) If the control pressure is not attained, check intake manifold vacuum (refer to section „Checking control pressure at idle with engine at operating temperature”).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Special tools<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Pressure measuring device<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
\n
\n
102 589 00 21 00<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Clamp for hose lines<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
\n
\n
000 589 40 37 00<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Conventional tools<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Voltmeter\/oh mmeter<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Screw driver element 992\u2014T 30<\/div>\n<\/div>\n<\/td>\n
\n
\n
e.g. made by Hazet, D-5630 Remscheid<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 lla-120\/10<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Self made tool<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Contact bridge<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Note<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Prior to working on injection system, check firing point, spark plugs and idle speed adjustment.<\/div>\n
Perform leak test only in the event of complaints about hot starting.<\/div>\n
After stopping engine, the fuel pressure should still amount to 2.5 bar gauge pressure after 30 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Visual checkup<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1 Remove air cleaner.<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

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<\/td>\n\n
\n
2 Check all fuel connections for leaks.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 I la\u2014<\/strong>1 20\/11<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
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<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

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<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
3 Check for easy operation of adjusting lever (1) in air flow sensor and control piston (2) in fuel distribu\u00adtor. For this purpose, proceed as follows:<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Mixture controller with <\/strong>safety switch<\/div>\n
Pull plug from safety switch (3), switch-on ignition for a short moment to build up control pressure.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Mixture controller without <\/strong>safety switch<\/div>\n
Pull off fuel pump relay and bridge the two jacks for a moment to build up control pressure.<\/div>\n
Up to model year 1981: Jacks 1 and 2 Starting model year 1982: Jacks 7 and 8.<\/div>\n
Push air flow sensor (4) down manually. A uniform resistance should then be felt along entire path. No resistance should be felt during fast upward move\u00adments, since the slowly following control piston lifts off from adjusting lever. If the upward movement is slow, a control piston should closely follow.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
4 Check control piston in fuel distributor for leaks. Push air flow sensor for a short moment completely down and hold in this position, no fuel should then show up in air guide housing.<\/div>\n
If fuel emerges, replace fuel distributor (07.3\u2014205).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Connecting pressure measuring device<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The pressure measuring device remains connected for all pressure measurements.<\/div>\n
The pressure measuring device 102 589 00 21 00 now remains equipped with a valve screw on three-way valve only.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 lla-120\/12<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
To relieve sealing rings, keep valve screw or valve screws always open. Connections of three-way valve are numbered.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Pressure measuring device 1st version<\/div>\n
Connection 1 = hose line on fuel distributor<\/div>\n
Connection 2= hose line on pressure gauge<\/div>\n
Connection 3= hose line on released control pressure line<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Pressure measuring device 2nd version<\/div>\n
Connection A = hose line on fuel distributor<\/div>\n
Connection B = hose line on released control pressure line<\/div>\n<\/div>\n<\/td>\n
\n
\n

\"m110<\/p>\n

\n
11004-9447\/1<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\u00a0 \u00a0 Unscrew control pressure line (arrow) on fuel distributor (20), while catching fuel with a rag.<\/div>\n
2\u00a0 \u00a0Connect hose line from connection 1 or A to fuel distributor (20) and hose line of connection 3 or B to control pressure line (arrow).<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking control pressure at idle in cold engine<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
3\u00a0 \u00a0Open valve screw or valve screws on pressure measuring device.<\/div>\n
4\u00a0 \u00a0Run engine at idle and immediately read control pressure.<\/div>\n
Take nominal pressure according to ambient tempera\u00adture from control pressure diagram. If the nominal value is not attained, recondition system pressure regu\u00adlator (07.3\u2014210), or check input strainer in warm-up compensator. Replace warm-up compensator, if required.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 Ma\u20141 20\/13<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
T)(usa) Federal and California 1976\/77<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator Bosch end no.<\/div>\n
030\u00a0 (aus) (V) (usa) Federal<\/div>\n
031\u00a0 CO (usa) California<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = 1.2\u20141.6 bar gauge pressure.<\/div>\n
Stabilizing time at + 20 \u00b0C = 3\u20146 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(usa) Federal high altitudes 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator Bosch end no. 041<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = control pressure 1.4\u20141.8 bar gauge pressure.<\/div>\n
Stabilizing time at + 20 \u00b0C = 3-6 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(aus) <\/strong>(T) <\/em>(T) (usa) <\/strong>1978 <\/strong>(7) 1979\/80 <\/strong>(usa) <\/strong>1979<\/strong><\/div>\n
Warm-up compensator Bosch end no.<\/div>\n
030\u00a0 (aus) (T) (usa) Federal<\/div>\n
031\u00a0 \u00a0CD @> California<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = control pressure 1.2\u20141.6 bar gauge pressure.<\/div>\n
Stabilizing time + 20 \u00b0C = 3-6 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(aus) (V) 1979\/80<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator Bosch end no. 056<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = control pressure 1.2\u20141.6 bar gauge pressure.<\/div>\n
Stabilizing time at + 20 \u00b0C = 2-4 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 Ma\u2014120\/14 <\/strong>F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(T) starting 1981 <\/strong>(usa) 1980\/81<\/strong><\/div>\n
Warm-up compensator Bosch end no. 067<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = control pressure 1.4\u20141.8 bar gauge pressure.<\/div>\n
Stabilizing time at + 20 \u00b0C = 2-4 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(aus) (T) starting 1981<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Warm-up compensator Bosch end no. 057<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Ambient temperature 20 \u00b0C = control pressure 1.1 \u20141.5 bar gauge pressure.<\/div>\n
Stabilizing time at + 20 \u00b0C = 2-4 minutes.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
5 Check stabilizing time of warm-up compensator. Read initial control pressure at + 20 \u00b0C. The stabiliz\u00ading time at 3.4 bar gauge pressure should be within tolerance. Additional electric consumers switched off, minimum voltage 12 Volts.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking system pressure at idle with engine cold or <\/strong>at operating temperature<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
6\u00a0 \u00a0Close valve screw on pressure measuring device. When measuring pressure, with 2 valve screws, close valve screw at connection 3.<\/div>\n
7\u00a0 \u00a0The system pressure should amount to 5.0\u20145.6 bar gauge pressure.<\/div>\n
8\u00a0 \u00a0If the system pressure of 5.0\u20145.6 bar gauge pressure is not attained or exceeded, perform the following checkups:<\/div>\n
a)\u00a0 Check delivery capacity of fuel pump (07.3\u2014130).<\/div>\n
b)\u00a0 Recondition system pressure regulator (07.3\u2014210).<\/div>\n
c)\u00a0 Check fuel return flow line for passage.<\/div>\n
9\u00a0 \u00a0Re-open valve screw.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 lla-120\/15<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking control pressure at idle with engine at <\/strong>operating temperature<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
10\u00a0 \u00a0 Open both valve screws or valve screw on pressure measuring device.<\/div>\n
11\u00a0 \u00a0 Control pressure should increase to specified value (warm-up compensator stabilized).<\/div>\n
If the control pressure is not attained, perform the following checkups:<\/div>\n
a) Check intake manifold vacuum. For this purpose, pull off vacuum hose (arrow) on warm-up compen\u00adsator and attach a T-fitting for pressure gauge.<\/div>\n
Read intake manifold vacuum and transfer to vacuum diagram.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(@) Federal 1977-1979 <\/strong>(aus) <\/strong>(V) starting 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Intake manifold vacuum 400 mbar = control pressure 3.5\u20143.9 bar gauge pressure.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(usa) <\/strong>Federal high altitudes 1977<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
Intake manifold vacuum 400 mbar = control pressure 3.7\u20144.1 bar gauge pressure.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
GO 1977-1980<\/div>\n
(\u00a9) California 1977-1979<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example.<\/strong><\/div>\n
Intake manifold vacuum 400 mbar = control pressure 3.1\u20143.5 bar gauge pressure.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 I la\u20141 20\/16 F2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Note: <\/strong>Starting model year (7) 1981, <@) 1980 the vacuum flow is straight. Control pressure is therefore independent of intake manifold vacuum.<\/div>\n
b) Test voltage on warm-up compensator with engine running. Pull electrical connection from warm-up compensator and test for voltage. Minimum voltage 12 Volts (without electrical consumers).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
c)\u00a0 Test heater coil with an ohmmeter for passage. Resistance: 20\u201440 ft.<\/div>\n
Replace warm-up compensator.<\/div>\n
d)\u00a0 If control pressure is above nominal value, re\u00adcondition system pressure regulator (07.3\u2014210).<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Mixture controller with safety switch<\/div>\n
1\u00a0 \u00a0 \u00a0Fuel pump<\/div>\n
2\u00a0 \u00a0 Safety switch \u2014 air flow sensor plate<\/div>\n
3\u00a0 \u00a0 Warm-up compensator<\/div>\n
4\u00a0 \u00a0 Fuel pump<\/div>\n
a Terminal 50 (starting) b Terminal 1 5\/54 (ignition) c Plug connection 14-point tail lamp unit harness<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Mixture controller without <\/strong>safety switch<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Up to model year 1 981<\/div>\n
1\u00a0 \u00a0 \u00a0Fuel pump relay<\/div>\n
2\u00a0 \u00a0 Warm-up compensator a To fuel pump<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Starting model year 1981 1 Fuel pump relay 3 Warm-up compensator c To fuel pump<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
07.3.2 lla\u2014120\/1 7<\/div>\n<\/div>\n<\/td>\n
\n
\n
F 2<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
12 Check full load enrichment. For this purpose, pull vacuum hose (arrow) from warm-up compensator, control pressure should now drop to specified value.<\/div>\n
If the control pressure is not attained, replace warm-up compensator.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
13 Check acceleration enrichment.<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
(7) <\/em>starting 1981, @) 1980\/81<\/strong><\/div>\n
Check thermovalve (37) 50 \u00b0C for passage. For this purpose, pull off vacuum hoses (a and b). The thermo\u00advalve is closed below approx. 50 \u00b0C coolant tempera\u00adture, above approx. 50 \u00b0C coolant temperature there should be passage, if not, replace thermovalve (37).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Stop engine, pull off fuel pump relay (arrow).<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
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07.3.2 I la\u20141 20\/18<\/div>\n<\/div>\n<\/td>\n
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Pull vacuum line from distributor (arrow).<\/div>\n<\/div>\n<\/td>\n
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Plug vacuum pump to vacuum line toward warm-up compensator and activate warm-up compensator with 0.5 bar vacuum.<\/div>\n<\/div>\n<\/td>\n
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Bridge the two jacks on fuel pump relay coupler.<\/div>\n
Up to model year 1981: Jacks 1 and 2. Starting model year 1982: Jacks 7 and 8.<\/div>\n<\/div>\n<\/td>\n
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The control pressure should then amount to 1.4\u20141.8 bar gauge pressure. If the control pressure deviates from nominal value, replace warm-up compensator.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 lla-120\/19<\/div>\n<\/div>\n<\/td>\n
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Checking fuel distributor and fuel pump for leaks<\/strong><\/div>\n
14<\/strong>\u00a0 \u00a0Stop engine. Control pressure will then drop below opening pressure on injection valves (approx. 2.8 bar gauge pressure).<\/div>\n
15\u00a0 \u00a0 If the control pressure drops inmediately to 0 bar gauge pressure, replace check valve on fuel pump or subsequently install.<\/div>\n
16\u00a0 \u00a0 If the pressure drops slowly, unscrew fuel return line on fuel distributor. Fuel will emerge in the event of a leak on regulator piston or pressure compensating valve. If there is more than 1 drop in 5 seconds, re\u00adcondition system pressure regulator or pressure com\u00adpensating valve (07.3\u2014210).<\/div>\n
17\u00a0 \u00a0Check fuel reservoir for leaks (not included in time rate). For this purpose, disconnect leak line be\u00adtween fuel reservoir and intake damper.<\/div>\n
18\u00a0 \u00a0 Loosen leak line on intake damper and pull off. Loosen clamp, pressureless leaking is permissible. Re\u00adplace fuel reservoir, if required (07.3\u2014270).<\/div>\n<\/div>\n<\/td>\n
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19\u00a0 \u00a0Check cold-starting valve (98) for leaks. For this purpose, remove cold-starting valve (07.3\u2014125, section „Checking for leaks”).<\/div>\n
20\u00a0 \u00a0Close pressure measuring device, while catching fuel with a rag.<\/div>\n
21\u00a0 \u00a0 Connect fuel lines, run engine once again and check fuel connections for leaks.<\/div>\n<\/div>\n<\/td>\n
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07.3.2 I la\u20141 20\/20 F2<\/div>\n<\/div>\n<\/td>\n
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    07.3\u2014120 Checking fuel pressures and for internal leaks   A. Standard version   Test values in bar gauge pressure   Engine   110.984\/985 110.986\/987     110.988\/989 110.990 System pressure at idle with engine cold or at operating temperature   5.0-5.6   Control pressure at idle with engine at operating temperature Warm-up compensator stabilized 3.4-3.8 at 530 mbar1)     3.6-4.0 Full load enrichment at idle (vacuum hose pulled off)   2.8-3.2   Control pressure according to ambient temperature at idle with engine cold     min. 0.5 (refer to diagram)   l) If control pressure is not attained, check intake manifold vacuum (section „Checking control pressure at idle with engine at operating temperature”).   Special tools   Pressure tester 102 589 00 21 00   Clamp for hose lines 000 589 40 37 00   Conventional tools   Voltmeter, ohmmeter   Screw driver element 992\u2014T 30 e.g. made by Hazet, D-5630 Remscheid   07.3.2 I la\u2014120\/1 F2       Self-made tool   Contact bridge   Note:   Prior to working on injection system, check firing point, spark plugs and idle speed adjustment. Perform leak test only in the event of complaints about hot starting. After stopping the engine, the fuel pressure should still amount to 2.5 bar gauge pressure after 30 minutes.   Visual checkup   1 Remove air cleaner.   2 Check all fuel connections for leaks.   07.3.2 lla-120\/2 F2       3 Check for easy operation of adjusting lever (1) in air flow sensor and control piston (2) in fuel distributor For this purpose, proceed as follows: Mixture controller with safety switch Pull plug from safety switch (3), switch-on ignition for a short moment to build up control pressure. Mixture controller without safety switch Pull off fuel pump relay and bridge the two jacks for a moment to build up control pressure. Prior to September 1981: Jacks 1 and 2. Starting September 1981: Jacks 7 and 8. Push air flow sensor (4) down manually. A uniform resistance should then be felt along entire path. No resistance should be felt during fast upward moment, since the slowly following control piston lifts off from adjusting lever. If the upward movement is slow, a control piston should closely follow.   4 Check control piston in fuel distributor for leaks. Push air flow sensor for a short moment completely down and hold in this position, no fuel should then show up in air guide housing. If fuel emerges, replace fuel distributor (07.3\u2014205).   Connecting pressure measuring device   The pressure measuring device remains connected for all pressure measurements. The pressure measuring device 102 589 00 21 00 now remains equipped with a valve screw on three-way vaive only.   07.3.2 lla-1 20\/3 F2       To relieve sealing rings, keep valve screw or valve screws always open. Connections of three-way valve are numbered. Pressure measuring device 1st version Connection 1 = hose line on fuel distributor Connection 2 = hose line on pressure gauge Connection 3 = hose line on released control pressure line   Pressure measuring device 2nd version Connection A = hose line on fuel distributor Connection B = hose line on released control pressure line 11004 -9447M   1\u00a0 \u00a0 Unscrew control pressure line (arrow) on fuel distributor (20), while catching fuel with a rag. 2\u00a0 \u00a0Connect hose line from connection 1 or A to fuel distributor (20) and hose line of connection 3 or B to control pressure line (arrow).   Checking control pressure at idle in cold engine   3\u00a0 \u00a0Open valve screw or valve screws on pressure measuring device. 4\u00a0 \u00a0 Run engine at idle and immediately read control pressure.   07.3.2 I la\u2014120\/4 F2       Take nominal pressure according to ambient tempera\u00adture from control pressure diagram. If the nominal value is not attained, recondition system pressure regulator (07.3\u2014210), or check input strainer in warm-up compensator. Replace warm-up compensa\u00adtor, if required. Example: Warm-up compensator with Bosch end no. 010 and 057: Ambient temperature +20 \u00b0C = 1.0\u20141.5 bar gauge pressure. Warm-up compensator with Bosch end no. 103: Ambient temperature +20 \u00b0C = 1.0\u20141.4 bar gauge pressure.   5 Check stabilizing time of warm-up compensator. Read initial control pressure at +20 \u00b0C. The stabilizing time at 3.4 bar gauge pressure should be within tole\u00adrance. Additional electric consumers switched off, minimum voltage 12 Volts. Example: Stabilizing time at +20 \u00b0C Warm-up compensator with Bosch end no. 010 = 3\u20146 minutes Warm-up compensator with Bosch end no. 057 and 103 = 2-4 minutes. Checking system pressure at idle with engine cold or at operating temperature   6\u00a0 \u00a0Close valve screw on pressure measuring device. When measuring pressure, with 2 valve screws, close valve screw at connection 3. 7\u00a0 \u00a0The system pressure should amount to 5.0\u20145.6 bar gauge pressure.   8 If the system pressure of 5.0\u20145.6 bar gauge pres\u00adsure is not attained or exceeded, perform the follow\u00ading checkups: a)\u00a0 Check delivery capacity of fuel pump (07.3\u2014130). b)\u00a0 Recondition system pressure regulator (07.3\u2014210). c)\u00a0 Check fuel return flow line for passage.   9 Re-open valve screw.   07.3.2 I la\u20141 20\/5 F2       Checking control pressure at idle with engine at operating temperature   10\u00a0 \u00a0Open both valve screws or valve screw on pressure measuring device. 11\u00a0 \u00a0 Control pressure should increase to 3.4\u20143.8 or 3.6\u20144.0 bar gauge pressure (warm-up compensator stabilized). If the control pressure of 3.4-3.8 or 3.6-4.0 bar gauge pressure is not attained, perform the following checkups.   Engine 110.984\/985\/986\/987 a) Check intake manifold vacuum. For this purpose, pull off vacuum hose (arrow in fig. item 12) on warm-up compensator and attach a T-fitting for pressure gauge. Read intake manifold vacuum and transfer to vacuum diagram. Example: Intake manifold vacuum 400 mbar = 3.5\u20143.9 bar gauge pressure. Engine 110.988\/989\/990 The control pressure is not influenced by vacuum from change on warm-up compensator. b)\u00a0 Test voltage on warm-up compensator with engine running. Pull electrical connection from warm-up compensator and test voltage. Minimum voltage 12 Volts (without electrical consumers). c)\u00a0 Test heater coil with an ohmmeter for passage. Resistance: 20-40 \u00a31. Replace warm-up compensator in the event of an interruption. d)\u00a0 If the control pressure is above 3.6 or 3.8 bar gauge pressure, recondition system pressure regulator (07.3-210). Mixture controller with safety switch 1\u00a0 \u00a0 \u00a0Fuel pump relay 2\u00a0 \u00a0 Safety switch \u2014 air flow sensor plate 3\u00a0 \u00a0 Warm-up compensator 4\u00a0 \u00a0 Fuel pump a Terminal 50 (starting) b Terminal 15\/54 (ignition) c Plug connection 14-point tail lamp unit harness   07.3.2 I la\u20141 20\/6 F2       Mixture controller without safety switch Prior to September 1981 1 Fuel pump relay 3 Warm-up compensator a To fuel pump   Starting September 1981 1 Fuel pump relay 3 Warm-up compensator c To fuel pump   12 Check full load enrichment. For this purpose, pull vacuum hose (arrow) from warm-up compensa\u00adtor or at intake manifold, control pressure should then drop to 2.8\u20143.2 bar gauge pressure. If a control pressure of 2.8\u20143.2 bar gauge pressure is not attained, replace warm-up compensator.     07.3.2 lla-1 20\/7 F2       Checking fuel distributor and fuel pump for leaks 13\u00a0 \u00a0 Stop engine. Control pressure will then drop be\u00adlow opening pressure of injection valves (approx. 2.8 bar gauge pressure). 14\u00a0 \u00a0 If the control pressure drops immediately to 0 bar gauge pressure, replace check valve on fuel pump or subsequently install. 15\u00a0 \u00a0 If the pressure drops slowly, unscrew fuel return line on fuel distributor. Fuel will emerge in the event of a leak on regulator piston or pressure compensating valve. If there is more than 1 drop in 4 seconds, re\u00adcondition system pressure regulator or pressure com\u00adpensating valve (07.3\u2014210). 16\u00a0 \u00a0Check fuel reservoir for leaks (not included in time rate). For this purpose, disconnect leak line between fuel reservoir and intake damper. 17\u00a0 \u00a0 Loosen leak line on intake damper and pull off. Loosen clamp, pressureless leaking is permissible. Replace fuel reservoir, if required (07.3\u2014270).   18\u00a0 \u00a0Check cold-starting valve (98) for leaks. For this purpose, remove cold-starting valve (07.3\u2014125, sec\u00adtion Checking for leaks). 19\u00a0 \u00a0 Close pressure measuring device, while catching fuel with a rag. 20\u00a0 \u00a0Connect fuel lines, run engine once again and check all fuel connections for leaks.   07.3.2 Ha\u20141 20\/8 F2       B. National version (aus)   Test values in bar gauge pressure   Warm-up compensator System pressure at Control pressure at idle with engine at operating Bosch end no. idle with engine cold temperature     or at operating Warm-up compen-   Full load enrichment   temperature sator stabilized at   idle (vacuum hose     530 mbar intake   pulled off)     manifold vacuum1)       (aus) starting 1977 Identification: Label silver. (T) starting 1977 Identification: Label blue.   030 056 057 5.0-5.6 3.4-3.8 2.8-3.2   -1980 Identification: Label in Japanese language.   031 5.0-5.6 3.0-3.4 2.8-3.2   (@) 1977-1979 Identification: Label black. Identification: 1979 label Federal black, California yellow.   030 Federal       3.4-3.8 2.8-3.2 041 Federal high altitudes 1977 5.0- -5.6 3.6-4.0 3.0-3.4 031 California       3.0-3.4 2.8-3.2   If the control pressure is not attained, check intake manifold vacuum (refer to section „Checking control pressure at idle with engine at operating temperature”).   07.3.2 Ma\u20141 20\/9 F2       Warm-up compensator System pressure at Control pressure at idle with engine at Bosch end no. idle with engine operating temperature     cold or at operating       temperature Warm-up compen-   Acceleration enrich-     sator stabilized at   ment with engine     530 mbar intake   stopped and 0.5 bar     manifold vacuum1)   vacuum at warm-up         compensator   (T) starting 1981 Identification: Label in Japanese language. (@) 1980\/81 Identification: Label Federal black.   067 5.0-5.8 3.4-3.8 1.4-1.8   ) If the control pressure is not attained, check intake manifold vacuum (refer to section „Checking control pressure at idle with engine at operating temperature”).   Special tools   Pressure measuring device 102 589 00 21 00   Clamp for hose lines 000 589 40 37 00   Conventional tools   Voltmeter\/oh mmeter   Screw driver element 992\u2014T 30 e.g. made by Hazet, D-5630 Remscheid   07.3.2 lla-120\/10 F 2       Self made tool   Contact bridge   Note   Prior to working on injection system, check firing point, spark plugs and idle speed adjustment. Perform leak test only in the event of complaints about hot starting. After stopping engine, the fuel pressure should still amount to 2.5 bar gauge pressure after 30 minutes.   Visual checkup   1 Remove air cleaner.   2 Check all fuel connections for leaks.   07.3.2 I la\u20141 20\/11 F 2       3 Check for easy operation of adjusting lever (1) in air flow sensor and control piston (2) in fuel distribu\u00adtor. For this purpose, proceed as follows: Mixture controller with safety switch Pull plug from safety switch (3), switch-on ignition for a short moment to build up control pressure. Mixture controller without safety switch Pull off fuel pump relay and bridge the two jacks for a moment to build up control pressure. Up to model year 1981: Jacks 1 and 2 Starting model year 1982: Jacks 7 and 8. Push air flow sensor (4) down manually. A uniform resistance should then be felt along entire path. No resistance should be felt during fast upward move\u00adments, since the slowly following control piston lifts off from adjusting lever. If the upward movement is slow, a control piston should closely follow.   4 Check control piston in fuel distributor for leaks. Push air flow sensor for a short moment completely down and hold in this position, no fuel should then show up in air guide housing. If fuel emerges, replace fuel distributor (07.3\u2014205).   Connecting pressure measuring device   The pressure measuring device remains connected for all pressure measurements. The pressure measuring device 102 589 00 21 00 now remains equipped with a valve screw…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":""},"categories":[27,33],"tags":[],"class_list":["post-2581","post","type-post","status-publish","format-standard","hentry","category-m110","category-mechanical-gazoline-injection-system-cis"],"aioseo_notices":[],"featured_image_src":null,"author_info":{"display_name":"mackuz","author_link":"https:\/\/mbci.mackuz.ovh\/index.php\/author\/mackuz\/"},"_links":{"self":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/comments?post=2581"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2581\/revisions"}],"predecessor-version":[{"id":2582,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2581\/revisions\/2582"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}