{"id":2961,"date":"2023-11-18T00:26:09","date_gmt":"2023-11-17T23:26:09","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2961"},"modified":"2023-11-18T00:26:09","modified_gmt":"2023-11-17T23:26:09","slug":"testing-egr-2","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/18\/testing-egr-2\/","title":{"rendered":"Testing EGR"},"content":{"rendered":"

 <\/p>\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\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
14-100 Testing EGR<\/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
For complaints such as: Very poor engine performance, black or blue smoke.<\/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 conditions:<\/div>\n<\/div>\n<\/td>\n
\n
\n
Throttle linkage correctly adjusted, connect tachometer, engine at operating tempera\u00adture, run engine at idle (750 \u00b1 100\/min), steering in straightahead position, air condi\u00adtioning turned off, selector lever of automatic transmission in position „P”.<\/div>\n
Exhaust gas recirculation (EGR).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Tested:<\/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<\/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
Tester 0\u2014100 mbar for vacuum and gauge pressure<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
\n
\n
201 589 13 21 00<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1DO4-12O99<\/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<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/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
Test cable<\/div>\n<\/div>\n<\/td>\n
\n
\n

\"om617<\/p>\n

\n
11004-11172<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
\n
\n
102 589 04 63 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
Adjusting roller<\/div>\n<\/div>\n<\/td>\n
\n
\n
916 589 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
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
Digital tester<\/div>\n<\/div>\n<\/td>\n
\n
\n
e.g. Bosch, MOT 001.03 e.g. Sun, DIT9000 e.g. Sun, 1019<\/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
Multimeter<\/div>\n<\/div>\n<\/td>\n
\n
\n
e.g. Sun, DMM\u20145<\/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
Self-made test connection<\/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
Distributor<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
\n
\n
117 078 01 45<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
a Vacuum line 4 x 1 x 400 mm<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1074-8889<\/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
Test line 4 x 1 x 400 mm<\/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
14.8-100\/1 USA F3<\/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
<\/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
A. (\u00a9)model year 1980<\/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
\"om617<\/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
Operational diagram vacuum line layout<\/div>\n
1\u00a0 \u00a0 Intake manifold<\/div>\n
31\u00a0 \u00a0 Exhaust manifold<\/div>\n
36\u00a0 \u00a0Thermovalve 1 7 \u00b0C\/63 \u00b0F<\/div>\n
60\u00a0 \u00a0Exhaust gas recirculation valve (EGR)<\/div>\n
61\u00a0 \u00a0 Corrugated tubing<\/div>\n
62\u00a0 \u00a0Orifice<\/div>\n
63\u00a0 \u00a0Orifice<\/div>\n
64a Switchover valve, idle speed shutoff \u2014 EGR 64bSwitchover valve, full load shutoff \u2014 EGR<\/div>\n<\/div>\n<\/td>\n
\n
\n
65\u00a0 \u00a0 Vacuum control valve<\/div>\n
66\u00a0 \u00a0 Injection pump<\/div>\n
67\u00a0 \u00a0 Vacuum pump<\/div>\n
68\u00a0 \u00a0 Guide lever with cam<\/div>\n
a\u00a0 \u00a0 \u00a0 Automatic transmission<\/div>\n
b\u00a0 \u00a0 \u00a0 Vent to passenger compartment<\/div>\n
c\u00a0 \u00a0 \u00a0 Brake unit<\/div>\n<\/div>\n<\/td>\n
\n
\n
bk =\u00a0 \u00a0black<\/div>\n
br =\u00a0 \u00a0brown<\/div>\n
gr =\u00a0 \u00a0green<\/div>\n
pu =\u00a0 \u00a0purple<\/div>\n
re =\u00a0 \u00a0red<\/div>\n
wh =\u00a0 \u00a0white<\/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
14.8-100\/2 USA 1980 F 3<\/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
<\/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
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing EGR<\/strong><\/div>\n
Connect vacuum tester between EGR valve (60) and switchover valve (64b) to vacuum line (white\/purple\/brown). At idle, with throttle linkage at idle stop, no vacuum should be indi\u00adcated. Advance control linkage until free travel of free travel rod is eliminated (do not pull on stop lever). Vacuum should now amount to 350-500 mbar.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Vacuum nominal value of 350\u2014 500 mbar is attained.<\/div>\n<\/div>\n<\/td>\n
\n
\n
Vacuum nominal value is not attained or exceeded.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
<\/div>\n

 <\/td>\n

\n
\n
……….<\/strong>\u201e<\/strong>…..<\/strong>^<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\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<\/div>\n<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Check vacuum lines<\/strong><\/div>\n
Check all vacuum lines for control of EGR system and of automatic transmis\u00adsion according to operational diagram vacuum line layout <\/strong>for correct connec\u00adtion and leaks. Blow through orifice (62) at vacuum tapping point.<\/div>\n
Check black vent line (arrow) from vacuum control valve to passenger com\u00adpartment for free passage.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check thermovalve 40 \u00b0C\/104 \u00b0F <\/strong>(36, color code blue)<\/strong><\/div>\n
Pull off vacuum line (white\/purple\/ brown) on diagonal connection of thermo\u00advalve.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check vacuum line (white\/brown) on dis\u00adtributor (a) and check for passage. If there is no passage, replace thermovalve.<\/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
14.8-100\/3 USA 1980 F3<\/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
<\/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
\"om617<\/div>\n<\/td>\n
\n
\n
When thermovalve is cooling down, <\/strong>thermo-valve should have no passage at tempera\u00adtures below 7 \u00b0C\/45 \u00b0F.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check switchover valve (64a)<\/strong><\/div>\n
Pull connection (arrow) of vacuum line (white\/purple\/brown) from switchover valve.<\/div>\n
Connect vacuum tester to free connection of switchover valve and connect with pulled off vacuum line. Vacuum readout approx. 350\u2014500 mbar (regulating linkage at idle speed stop).<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Leak test<\/strong><\/div>\n
Disconnect distributor of white\/purple\/ brown vacuum line. Vacuum should remain constant for approx. 2 minutes.<\/div>\n
If vacuum drops, replace switchover valve.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
If vacuum remains constant, check switch\u00ad<\/strong>over:<\/strong><\/div>\n
For this purpose, remove clamp, pull off connecting hose between the two switch\u00adover valves and bridge free travel on free travel rod.<\/div>\n
Vacuum should distinctly drop. If vacuum is not dropping, replace switchover valve.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking switchover valve (64b)<\/strong><\/div>\n
Pull off vacuum line (white) on switch\u00adover valve (64b). Pull off vacuum line (white\/purple\/brown) on switchover valve (64a). Connect vacuum tester to free con\u00adnection of switchover valve (64b) and connect with pulled off vacuum line (white\/purple\/brown). Vacuum readout 350-500 mbar.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/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
14.8-100\/4 USA 1980 F 3<\/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<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Leak test<\/strong><\/div>\n
For this purpose, disconnect distributor of vacuum line (white\/purple\/brown). Vacuum should remain constant for approx. 2 minutes.<\/div>\n
If vacuum drops, replace switchover valve.<\/div>\n
If vacuum remains constant, check switch\u00ad<\/strong>over:<\/strong><\/div>\n
For this purpose, remove clamp and pull off vacuum line (white\/purple\/brown) on switchover valve (64b). Switch over switch\u00adover valve with screwdriver. Vacuum should drop to „0”.<\/em><\/div>\n
If vacuum is not dropping to „0”, replace switchover valve.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking EGR valve (60)<\/strong><\/div>\n
Switch over switchover valve (64a) by bridging free travel „L” <\/em>on free travel rod. Pull off vacuum line on EGR valve and plug on again.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
EGR valve should audibly <\/strong>close.<\/div>\n<\/div>\n<\/td>\n
\n
\n
EGR valve not closing.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Replace EGR valve (60).<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/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
14.8-100\/5 USA 1980 F 3<\/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<\/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<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking vacuum control<\/strong><\/div>\n
Connect vacuum tester to vacuum line between EGR valve (60) and switchover valve (64b). Increase idle speed to 1000 \u00b1 10\/min by operat\u00ading regulating linkage (do not pull on stop lever)<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Vacuum amounts to 320-350 mbar.<\/div>\n<\/div>\n<\/td>\n
\n
\n
Vacuum is below or above specified value.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check orifice (63)<\/strong><\/div>\n
Check if orifice is open and blow through, if required.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Change orifice (63)<\/strong><\/div>\n
If the vacuum is not attained or is exceed\u00aded, install the next larger size orifice, if the vacuum is too high and the next smaller orifice if the vacuum is too low.<\/div>\n
If the correct vacuum is not <\/strong>attained by the installation of another orifice, replace vacuum control valve (65).<\/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
End of test<\/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
14.8-100\/6 USA 1980 F 3<\/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\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
B. <@> starting model year 1981<\/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
\"om617<\/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
Operational diagram, vacuum line layout<\/div>\n
1\u00a0 \u00a0 Intake manifold<\/div>\n
31\u00a0 \u00a0Exhaust manifold<\/div>\n
36\u00a0 \u00a0Thermovalve 40 \u00b0C\/104\u00b0F<\/div>\n
60\u00a0 \u00a0Exhaust gas recirculation valve (EGR)<\/div>\n
61\u00a0 \u00a0Corrugated tubing<\/div>\n
62\u00a0 \u00a0Orifice<\/div>\n
63\u00a0 \u00a0Orifice<\/div>\n
64a Switchover valve, idle speed shutoff \u2014 EGR 64bSwitchover valve, full throttle shutoff \u2014 EGR 65 Vacuum control valve<\/div>\n<\/div>\n<\/td>\n
\n
\n
66\u00a0 \u00a0 Injection pump<\/div>\n
67\u00a0 \u00a0 Vacuum pump<\/div>\n
68\u00a0 \u00a0 Guide lever with cam<\/div>\n
69\u00a0 \u00a0 Valve plate<\/div>\n
71\u00a0 \u00a0 Central plug<\/div>\n
72\u00a0 \u00a0 Vacuum damper<\/div>\n
a\u00a0 \u00a0 \u00a0 Vent to passenger compartment<\/div>\n
b\u00a0 \u00a0 \u00a0 Automatic transmission<\/div>\n
c\u00a0 \u00a0 \u00a0 Brake unit<\/div>\n<\/div>\n<\/td>\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
bk<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\n
= black<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
br<\/div>\n<\/div>\n<\/td>\n
\n
\n
= brown<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
gr<\/div>\n<\/div>\n<\/td>\n
\n
\n
= green<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
pu<\/div>\n<\/div>\n<\/td>\n
\n
\n
= purple<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
re<\/div>\n<\/div>\n<\/td>\n
\n
\n
= red<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
wh<\/div>\n<\/div>\n<\/td>\n
\n
\n
= white<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\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
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
Note: <\/strong>At begin of test, yellow orifice (63) should be installed.<\/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
14.8-100\/7 USA starting 1981 F3<\/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
<\/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
Testing EGR<\/strong><\/div>\n
Connect vacuum tester between EGR valve (60) and straight connection of thermovalve (36). At idle, with throttle linkage at idle stop, no vacuum should be indicated. Advance control linkage until free travel of free travel rod is eliminated (do not pull on stop lever). The vacuum should now amount to 350-500 mbar.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Idle, no vacuum present.<\/div>\n
Vacuum of 350\u2014 500 mbar is attained.<\/div>\n<\/div>\n<\/td>\n
\n
\n
Vacuum present. Vacuum not attained or exceeded.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check vacuum lines<\/strong><\/div>\n
Check all vacuum lines for control of EGR and automatic transmission accord\u00ading to operating diagram vacuum line <\/strong>layout <\/strong>for correct connection and leaks. Blow through orifice (62) in vacuum tapping point, if required.<\/div>\n
Check black vent line (arrow) from vacuum control valve to passenger com\u00adpartment for free passage.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check thermovalve 40 \u00b0C\/104 \u00b0F (36, color code blue)<\/strong><\/div>\n
Pull off white\/brown vacuum line on diagonal connection of thermovalve.<\/div>\n
Pull off white\/purple\/brown vacuum line on EGR valve and blow through.<\/div>\n
If there is no passage, remove thermovalve.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/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
14.8-100\/8 USA starting 1981 F3<\/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\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
\"om617<\/div>\n<\/td>\n
\n
\n
Check switchover valve (64a)<\/strong><\/div>\n
Pull central plug (71) from valve plate (69). Connect test line between tapping point (black orifice, arrow) on vacuum line for brake unit and valve plate connec\u00adtion (1). Connect vacuum tester to connec\u00adtion (3). Close connection (2).<\/div>\n
Vacuum readout at switchover:<\/div>\n
Idle speed (throttle linkage at idle speed<\/div>\n
stop) „0” mbar.<\/div>\n
Bridge idle speed (do not pull on stop<\/div>\n
lever) approx. 700-800 mbar.<\/div>\n
Leak test:<\/div>\n
Let throttle linkage return to idle speed<\/div>\n
stop, stop engine.<\/div>\n
Vacuum should remain constant for<\/div>\n
approx. 2 minutes.<\/div>\n
Pull closing cap from connection (2).<\/div>\n
Bridge idle speed.<\/div>\n
Vacuum should drop to „0”.<\/div>\n
If test values are not attained: Replace switchover valve (64a).<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Check switchover valve (64b)<\/strong><\/div>\n
Pull central plug (71) from valve plate (69). Connect test line between tapping point (black orifice, arrow) on vacuum line brake unit and valve plate connection (1). Connect vacuum tester to connection (2).<\/div>\n
Close connection (3), start engine.<\/div>\n
Vacuum readout:<\/div>\n
Idle speed (regulating linkage on idle<\/div>\n
speed stop) approx. 700\u2014800 mbar.<\/div>\n
Leak test:<\/div>\n
Disconnect tapping point for test line (arrow). Stop engine, vacuum should remain constant for approx. 2 minutes.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/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
14.8-100\/9 USA starting 1981 F3<\/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<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Vacuum readout at switchover: Throttle linkage at full throttle stop, vacuum should remain constant. Let throttle linkage return to idle speed stop and pull off test line.<\/div>\n
Vacuum should drop to „0”.<\/div>\n
If test values are not attained, renew switchover valve (64b).<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Checking EGR valve (60)<\/strong><\/div>\n
Start engine. Operate switchover valve (64a) by eliminating free travel „L” on free travel rod. Pull off vacuum line on EGR valve and plug-on again.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
EGR valve should audibly <\/strong>close.<\/div>\n<\/div>\n<\/td>\n
\n
\n
EGR valve not closing.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Replace EGR valve (60).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/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
14.8-100\/10 USA starting 1981 F3<\/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\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
Note: <\/strong>Check adjustment of vacuum control valve prior to test.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/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
14.8-100\/11 USA starting 1981 F3<\/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
<\/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
C.<\/div>\n<\/div>\n<\/td>\n
\n
\n
model year 1984 California<\/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
\"om617<\/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
Function diagram vacuum line installation<\/div>\n
1\u00a0 \u00a0 Intake manifold<\/div>\n
2\u00a0 \u00a0Exhaust gas turbocharger 50\u00a0 \u00a0EGR-valve<\/div>\n
63\u00a0 \u00a0Orifice 0.5 mm<\/div>\n
64\u00a0 \u00a0Control rod travel indicator<\/div>\n
65\u00a0 \u00a0Vacuum control valve<\/div>\n
66\u00a0 \u00a0Injection pump<\/div>\n
67\u00a0 \u00a0Vacuum pump<\/div>\n
71\u00a0 \u00a0Circulating air safety valve<\/div>\n
72\u00a0 \u00a0Vacuum damper 80\u00a0 \u00a0Control unit<\/div>\n<\/div>\n<\/td>\n
\n
\n
81\u00a0 \u00a0 \u00a0Switchover valve<\/div>\n
82\u00a0 \u00a0 \u00a0Rpm sensor<\/div>\n
83\u00a0 \u00a0 Temperature sensor coolant (NTC)<\/div>\n
84\u00a0 \u00a0 \u00a0Pressure converter<\/div>\n
85\u00a0 \u00a0 \u00a0Vent filter<\/div>\n
140\u00a0 \u00a0 Check valve, model 123<\/div>\n
140a\u00a0 \u00a0Check valve, model 126<\/div>\n
a\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Vent line to passenger compartment<\/div>\n
b\u00a0 \u00a0 \u00a0 \u00a0 \u00a0To automatic transmission<\/div>\n
c\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Remaining consumers<\/div>\n<\/div>\n<\/td>\n
\n
\n
bk = black bl = blue br = brown gr = green pu = purple re = red wh = white<\/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
14.8-100\/12 USA 1984 California F 3<\/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\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
\"om617<\/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
Electric wiring diagram<\/div>\n
64\u00a0 \u00a0Control rod travel indicator<\/div>\n
80\u00a0 \u00a0Control unit<\/div>\n
81\u00a0 \u00a0Switchover valve<\/div>\n
82\u00a0 \u00a0Rpm sensor<\/div>\n
83\u00a0 \u00a0Temperature sensor<\/div>\n
84\u00a0 \u00a0Pressure converter<\/div>\n
85\u00a0 \u00a0Overvoltage protection<\/div>\n
86\u00a0 \u00a0Compensating plug<\/div>\n<\/div>\n<\/td>\n
\n
\n
M1\u00a0 \u00a0 Main ground behind instrument cluster<\/div>\n
M5\u00a0 \u00a0Ground, engine<\/div>\n
a\u00a0 \u00a0 \u00a0 To revolution counter<\/div>\n
b\u00a0 \u00a0 \u00a0 To fuse capsule, terminal 15<\/div>\n
c\u00a0 \u00a0 \u00a0 To supporting lug, terminal 30<\/div>\n<\/div>\n<\/td>\n
\n
\n
bl = blue br = brown ge = yellow gn = green it = red sw = 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
14.8-100\/13 USA 1984 California F 3<\/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<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Short test<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test EGR-valve (60) with engine stopped<\/strong><\/div>\n
Activate EGR-valve with approx. 300 mbar vacu\u00adum. Pull off vacuum line.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
EGR-valve closes audibly<\/div>\n<\/div>\n<\/td>\n
\n
\n
not closing<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Renew EGR-valve.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing voltage at pressure converter (84)<\/strong><\/div>\n
Engine stopped, ignition switched on. Pull plug from pressure converter and connect with multi\u00admeter (arrow), push button „V=” and read no\u00adminal value 12 V.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Readout in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test overvoltage protection and electric activation according to wiring diagram.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/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
14.8-100\/14 USA 1984 California F3<\/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<\/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<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing vacuum control<\/strong><\/div>\n
Connect vacuum tester with Y-distributor to EGR-valve (60).<\/div>\n
Read vacuum values at the following engine speeds:<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\/min<\/div>\n<\/div>\n<\/td>\n
\n
\n
mbar<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
700-2600<\/div>\n
from approx. 2400<\/strong><\/div>\n
3000<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\n
280-360 <\/strong>slowly dropping<\/div>\n
approx. 60<\/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
Vacuum values in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/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
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Perform testing individual components.<\/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
End of test<\/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
14.8-100\/15 USA 1984 California F3<\/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\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
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing individual components<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

<\/Testing EGRtd><\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Testing temperature sensor for coolant (83)<\/strong><\/div>\n
Engine stopped.<\/div>\n
Pull plug from temperature sensor for coolant.<\/div>\n
Test resistance against ground.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
For nominal value refer to diagram.<\/div>\n
Test resistance at three temperature measuring<\/div>\n
points.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Example:<\/strong><\/div>\n
+ 20 \u00b0C = 2.2-2.8 + 80 \u00b0C = 290-364 +100\u00b0C= 140-222<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test<\/div>\n
values in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Renew temperature sensor<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
End of test<\/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
Testing rpm sensor (82)<\/strong><\/div>\n
Engine stopped.<\/div>\n
Separate clutch (2) and test resistance with<\/div>\n
multimeter.<\/div>\n
Readout: 1.9 \u00b10.2<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
Renew rpm sensor.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/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
14.8-100\/16 USA 1984 California F 3<\/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<\/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\n\n\n\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
Connection as above.<\/div>\n
Push „V” button.<\/div>\n
Read test value at the following engine speed:<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\/min<\/div>\n<\/div>\n<\/td>\n
\n
\n
V<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
700-800<\/div>\n<\/div>\n<\/td>\n
\n
\n
>4M<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test values in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Renew rpm sensor.<\/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
End of test<\/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
Voltage increasing with increasing engine speed.<\/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
Testing control rod travel indicator<\/strong><\/div>\n
Engine stopped, separate clutch (1). With multi\u00admeter in position \u00a32 (measuring range up toap-prox. 100 fi) and test resistance according to dra\u00adwing.<\/div>\n
Readout: 1-2 = approx. 25 \u00b1 2 2-3 = approx. 25 \u00b1 2 1-3 = approx. 50 \u00b1 6<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Readout in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/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
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Exchange injection pump with control and travel indicator.<\/div>\n
Attention!<\/strong><\/div>\n
The control rod travel is set by manufac\u00adturer on test bench. Do not remove or change its function.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
End of test<\/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
14.8-100\/17 USA 1984 California F 3<\/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<\/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\n\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
Testing pressure converter (84)<\/strong><\/div>\n
Connect vacuum tester to vacuum line of con\u00adnection (2). Run engine at idle speed. Read va\u00adcuum value. Nominal value approx. 450 mbar.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Vacuum in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test vacuum lines according to function diagram. Test vacuum pump (43\u2014660).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Connect vacuum tester with Y-distributor to connection (1). Connect multimeter with test cable to pressure converter. Push button ,,mA”<\/div>\n
Read test values at the following engine speeds:<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\/min<\/div>\n<\/div>\n<\/td>\n
\n
\n
mbar<\/div>\n<\/div>\n<\/td>\n
\n
\n
mA<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
700-2600 from approx. 2400 approx. 3000<\/div>\n<\/div>\n<\/td>\n
\n
\n
280-360 dropping slowly approx. 60<\/div>\n<\/div>\n<\/td>\n
\n
\n
^ 530<\/div>\n
\u00a3370 0<\/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<\/div>\n
values in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Current values in order, renew pressure converter.<\/div>\n
Current values not in order, perform ac\u00adtivation test according to electric wiring diagram. Renew control unit, if re\u00adquired.<\/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
End of test<\/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
14.8-100\/18 USA 1984 California F3<\/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<\/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\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
Testing switchover valve (81)<\/strong><\/div>\n
Connect vacuum tester with Y-distributor to connection (a). Run engine at idle speed. Read vacuum value. Nominal value > approx. 600 mbar.<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Vacuum in order<\/div>\n<\/div>\n<\/td>\n
\n
\n
not in order<\/div>\n<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"om617<\/div>\n<\/td>\n
\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test vacuum lines according to vacuum diagram. Test vacuum pump (43\u2014660).<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

\n
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Connect vacuum tester with Y-distributor to connection (b). Connect multimeter with switchover valve. Push button „V=”. Read test values at the following engine speeds:<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
1\/min<\/div>\n<\/div>\n<\/td>\n
\n
\n
mbar<\/div>\n<\/div>\n<\/td>\n
\n
\n
Volt<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
700-800<\/div>\n
1000-2500<\/div>\n
>3000<\/div>\n<\/div>\n<\/td>\n
\n
\n
approx. 600 0<\/div>\n<\/div>\n<\/td>\n
\n
\n
0<\/div>\n
approx. 12 0<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Test<\/div>\n
values in order<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
not in order<\/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
\"om617<\/div>\n<\/td>\n
\n
\"om617<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Voltage data in order, renew switchover valve.<\/div>\n
Voltage data not in order, perform acti\u00advation test according to electric wiring diagram. Renew control unit, 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
End of test<\/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
14.8-100\/19 USA 1984 California F3<\/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

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

    14-100 Testing EGR   For complaints such as: Very poor engine performance, black or blue smoke.   Test conditions: Throttle linkage correctly adjusted, connect tachometer, engine at operating tempera\u00adture, run engine at idle (750 \u00b1 100\/min), steering in straightahead position, air condi\u00adtioning turned off, selector lever of automatic transmission in position „P”. Exhaust gas recirculation (EGR). Tested:   Special tools   Tester 0\u2014100 mbar for vacuum and gauge pressure 201 589 13 21 00 1DO4-12O99   Clamp 000 589 40 37 00   Test cable 11004-11172 102 589 04 63 00   Adjusting roller 916 589 00 21 00   Conventional tools   Digital tester e.g. Bosch, MOT 001.03 e.g. Sun, DIT9000 e.g. Sun, 1019   Multimeter e.g. Sun, DMM\u20145   Self-made test connection   Distributor 117 078 01 45 a Vacuum line 4 x 1 x 400 mm 1074-8889   Test line 4 x 1 x 400 mm   14.8-100\/1 USA F3       A. (\u00a9)model year 1980     Operational diagram vacuum line layout 1\u00a0 \u00a0 Intake manifold 31\u00a0 \u00a0 Exhaust manifold 36\u00a0 \u00a0Thermovalve 1 7 \u00b0C\/63 \u00b0F 60\u00a0 \u00a0Exhaust gas recirculation valve (EGR) 61\u00a0 \u00a0 Corrugated tubing 62\u00a0 \u00a0Orifice 63\u00a0 \u00a0Orifice 64a Switchover valve, idle speed shutoff \u2014 EGR 64bSwitchover valve, full load shutoff \u2014 EGR 65\u00a0 \u00a0 Vacuum control valve 66\u00a0 \u00a0 Injection pump 67\u00a0 \u00a0 Vacuum pump 68\u00a0 \u00a0 Guide lever with cam a\u00a0 \u00a0 \u00a0 Automatic transmission b\u00a0 \u00a0 \u00a0 Vent to passenger compartment c\u00a0 \u00a0 \u00a0 Brake unit bk =\u00a0 \u00a0black br =\u00a0 \u00a0brown gr =\u00a0 \u00a0green pu =\u00a0 \u00a0purple re =\u00a0 \u00a0red wh =\u00a0 \u00a0white   14.8-100\/2 USA 1980 F 3       Testing EGR Connect vacuum tester between EGR valve (60) and switchover valve (64b) to vacuum line (white\/purple\/brown). At idle, with throttle linkage at idle stop, no vacuum should be indi\u00adcated. Advance control linkage until free travel of free travel rod is eliminated (do not pull on stop lever). Vacuum should now amount to 350-500 mbar. Vacuum nominal value of 350\u2014 500 mbar is attained. Vacuum nominal value is not attained or exceeded.   ……….\u201e…..^     Check vacuum lines Check all vacuum lines for control of EGR system and of automatic transmis\u00adsion according to operational diagram vacuum line layout for correct connec\u00adtion and leaks. Blow through orifice (62) at vacuum tapping point. Check black vent line (arrow) from vacuum control valve to passenger com\u00adpartment for free passage. Check thermovalve 40 \u00b0C\/104 \u00b0F (36, color code blue) Pull off vacuum line (white\/purple\/ brown) on diagonal connection of thermo\u00advalve. Check vacuum line (white\/brown) on dis\u00adtributor (a) and check for passage. If there is no passage, replace thermovalve.   14.8-100\/3 USA 1980 F3       When thermovalve is cooling down, thermo-valve should have no passage at tempera\u00adtures below 7 \u00b0C\/45 \u00b0F. Check switchover valve (64a) Pull connection (arrow) of vacuum line (white\/purple\/brown) from switchover valve. Connect vacuum tester to free connection of switchover valve and connect with pulled off vacuum line. Vacuum readout approx. 350\u2014500 mbar (regulating linkage at idle speed stop). Leak test Disconnect distributor of white\/purple\/ brown vacuum line. Vacuum should remain constant for approx. 2 minutes. If vacuum drops, replace switchover valve. If vacuum remains constant, check switch\u00adover: For this purpose, remove clamp, pull off connecting hose between the two switch\u00adover valves and bridge free travel on free travel rod. Vacuum should distinctly drop. If vacuum is not dropping, replace switchover valve. Checking switchover valve (64b) Pull off vacuum line (white) on switch\u00adover valve (64b). Pull off vacuum line (white\/purple\/brown) on switchover valve (64a). Connect vacuum tester to free con\u00adnection of switchover valve (64b) and connect with pulled off vacuum line (white\/purple\/brown). Vacuum readout 350-500 mbar.   14.8-100\/4 USA 1980 F 3       Leak test For this purpose, disconnect distributor of vacuum line (white\/purple\/brown). Vacuum should remain constant for approx. 2 minutes. If vacuum drops, replace switchover valve. If vacuum remains constant, check switch\u00adover: For this purpose, remove clamp and pull off vacuum line (white\/purple\/brown) on switchover valve (64b). Switch over switch\u00adover valve with screwdriver. Vacuum should drop to „0”. If vacuum is not dropping to „0”, replace switchover valve. Checking EGR valve (60) Switch over switchover valve (64a) by bridging free travel „L” on free travel rod. Pull off vacuum line on EGR valve and plug on again. EGR valve should audibly close. EGR valve not closing. Replace EGR valve (60).   14.8-100\/5 USA 1980 F 3       Checking vacuum control Connect vacuum tester to vacuum line between EGR valve (60) and switchover valve (64b). Increase idle speed to 1000 \u00b1 10\/min by operat\u00ading regulating linkage (do not pull on stop lever) Vacuum amounts to 320-350 mbar. Vacuum is below or above specified value. Check orifice (63) Check if orifice is open and blow through, if required. Change orifice (63) If the vacuum is not attained or is exceed\u00aded, install the next larger size orifice, if the vacuum is too high and the next smaller orifice if the vacuum is too low. If the correct vacuum is not attained by the installation of another orifice, replace vacuum control valve (65).   End of test   14.8-100\/6 USA 1980 F 3       B. <@> starting model year 1981     Operational diagram, vacuum line layout 1\u00a0 \u00a0 Intake manifold 31\u00a0 \u00a0Exhaust manifold 36\u00a0 \u00a0Thermovalve 40 \u00b0C\/104\u00b0F 60\u00a0 \u00a0Exhaust gas recirculation valve (EGR) 61\u00a0 \u00a0Corrugated tubing 62\u00a0 \u00a0Orifice 63\u00a0 \u00a0Orifice 64a Switchover valve, idle speed shutoff \u2014 EGR 64bSwitchover valve, full throttle shutoff \u2014 EGR 65 Vacuum control valve 66\u00a0 \u00a0 Injection pump 67\u00a0 \u00a0 Vacuum pump 68\u00a0 \u00a0 Guide lever with cam 69\u00a0 \u00a0 Valve plate 71\u00a0 \u00a0 Central plug 72\u00a0 \u00a0 Vacuum damper a\u00a0 \u00a0 \u00a0 Vent to passenger compartment b\u00a0 \u00a0 \u00a0 Automatic transmission c\u00a0 \u00a0 \u00a0 Brake unit bk = black br = brown gr = green pu = purple re = red wh = white   Checkup   Note: At begin of test, yellow orifice (63) should be installed.   14.8-100\/7 USA starting 1981 F3       Testing EGR Connect vacuum tester between EGR valve (60) and straight connection of thermovalve (36). At idle, with throttle linkage at idle stop, no vacuum should be indicated. Advance control linkage until free travel of free travel rod is eliminated (do not pull on stop lever). The vacuum should now amount to 350-500 mbar. Idle, no vacuum present. Vacuum of 350\u2014 500 mbar is attained. Vacuum present. Vacuum not attained or exceeded. Check vacuum lines Check all vacuum lines for control of EGR and automatic transmission accord\u00ading to operating diagram vacuum line layout for correct connection and leaks. Blow through orifice (62) in vacuum tapping point, if required. Check black vent line (arrow) from vacuum control valve to passenger com\u00adpartment for free passage. Check thermovalve 40 \u00b0C\/104 \u00b0F (36, color code blue) Pull off white\/brown vacuum line on diagonal connection of thermovalve. Pull off white\/purple\/brown vacuum line on EGR valve and blow through. If there is no passage, remove thermovalve.   14.8-100\/8 USA starting 1981 F3       Check switchover valve (64a) Pull central plug (71) from valve plate (69). Connect test line between tapping point (black orifice, arrow) on vacuum line for brake unit and valve plate connec\u00adtion (1). Connect vacuum tester to connec\u00adtion (3). Close connection (2). Vacuum readout at switchover: Idle speed (throttle linkage at idle speed stop) „0” mbar. Bridge idle speed (do not pull on stop lever) approx. 700-800 mbar. Leak test: Let throttle linkage return to idle speed stop, stop engine. Vacuum should remain constant for approx. 2 minutes. Pull closing cap from connection (2). Bridge idle speed. Vacuum should drop to „0”. If test values are not attained: Replace switchover valve (64a). Check switchover valve (64b) Pull central plug (71) from valve plate (69). Connect test line between tapping point (black orifice, arrow) on vacuum line brake unit and valve plate connection (1). Connect vacuum tester to connection (2). Close connection (3), start engine. Vacuum readout: Idle speed (regulating linkage on idle speed stop) approx. 700\u2014800 mbar. Leak test: Disconnect tapping point for test line (arrow). Stop engine, vacuum should remain constant for approx. 2 minutes.   14.8-100\/9 USA starting 1981 F3       Vacuum readout at switchover: Throttle linkage at full throttle stop, vacuum should remain constant. Let throttle linkage return to idle speed stop and pull off test line. Vacuum should drop to „0”. If test values are not attained, renew switchover valve (64b). Checking EGR valve (60) Start engine. Operate switchover valve (64a) by eliminating free travel „L” on free travel rod. Pull off vacuum line on EGR valve and plug-on again. EGR valve should audibly close. EGR valve not closing. Replace EGR valve (60).   14.8-100\/10 USA starting 1981 F3       Note: Check adjustment of vacuum control valve prior to test.   14.8-100\/11 USA starting 1981 F3       C. model year 1984 California     Function diagram vacuum line installation 1\u00a0 \u00a0 Intake manifold 2\u00a0 \u00a0Exhaust gas turbocharger 50\u00a0 \u00a0EGR-valve 63\u00a0 \u00a0Orifice 0.5 mm 64\u00a0 \u00a0Control rod travel indicator 65\u00a0 \u00a0Vacuum control valve 66\u00a0 \u00a0Injection pump 67\u00a0 \u00a0Vacuum pump 71\u00a0 \u00a0Circulating air safety valve 72\u00a0 \u00a0Vacuum damper 80\u00a0 \u00a0Control unit 81\u00a0 \u00a0 \u00a0Switchover valve 82\u00a0 \u00a0 \u00a0Rpm sensor 83\u00a0 \u00a0 Temperature sensor coolant (NTC) 84\u00a0 \u00a0 \u00a0Pressure converter 85\u00a0 \u00a0 \u00a0Vent filter 140\u00a0 \u00a0 Check valve, model 123 140a\u00a0 \u00a0Check valve, model 126 a\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Vent line to passenger compartment b\u00a0 \u00a0 \u00a0 \u00a0 \u00a0To automatic transmission c\u00a0 \u00a0 \u00a0 \u00a0 \u00a0Remaining consumers bk = black bl = blue br = brown gr = green pu = purple re = red wh = white   14.8-100\/12 USA 1984 California F 3         Electric wiring diagram 64\u00a0 \u00a0Control rod travel indicator 80\u00a0 \u00a0Control unit 81\u00a0 \u00a0Switchover valve 82\u00a0 \u00a0Rpm sensor 83\u00a0 \u00a0Temperature sensor 84\u00a0 \u00a0Pressure converter 85\u00a0 \u00a0Overvoltage protection 86\u00a0 \u00a0Compensating plug M1\u00a0 \u00a0 Main ground behind instrument cluster M5\u00a0 \u00a0Ground, engine a\u00a0 \u00a0 \u00a0 To revolution counter b\u00a0 \u00a0 \u00a0 To fuse capsule, terminal 15 c\u00a0 \u00a0 \u00a0 To supporting lug, terminal 30 bl = blue br = brown ge = yellow gn = green it = red sw = black   14.8-100\/13 USA 1984 California F 3       Short test Test EGR-valve (60) with engine stopped Activate EGR-valve with approx. 300 mbar vacu\u00adum. Pull off vacuum line. EGR-valve closes audibly not closing Renew EGR-valve. Testing voltage at pressure converter (84) Engine stopped, ignition switched on. Pull plug from pressure converter and connect with multi\u00admeter (arrow), push button „V=” and read no\u00adminal value 12 V. Readout in order not in order   Test overvoltage protection and electric activation according to wiring diagram.   14.8-100\/14 USA 1984 California F3       Testing vacuum control Connect vacuum tester with Y-distributor to EGR-valve (60). Read vacuum values at the following engine speeds: 1\/min mbar 700-2600 from approx. 2400 3000 280-360 slowly dropping approx. 60   Vacuum values in order not in order   Perform testing individual components.   End of test   14.8-100\/15 USA 1984 California F3       Testing individual components <\/Testing EGRtd> Testing temperature sensor for coolant (83) Engine stopped. Pull plug from temperature sensor for coolant. Test resistance against ground. For nominal value refer to diagram. Test resistance at three temperature measuring points. Example: + 20 \u00b0C = 2.2-2.8 + 80 \u00b0C = 290-364 +100\u00b0C= 140-222 Test values in order not in order Renew temperature sensor End of test   Testing rpm sensor (82) Engine stopped. Separate clutch (2) and test resistance with multimeter. Readout: 1.9 \u00b10.2 in order not in order Renew rpm sensor.   14.8-100\/16 USA 1984 California F 3       Connection as above. Push „V” button. Read test value at the following engine speed: 1\/min V 700-800 >4M Test values in order not in order   Renew rpm sensor.   End of test   Voltage increasing with increasing engine speed.   Testing control rod travel indicator Engine stopped, separate clutch (1). With multi\u00admeter in position…<\/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":[52,44],"tags":[],"class_list":["post-2961","post","type-post","status-publish","format-standard","hentry","category-intake-manifold-exhaust-manifold-emission-control","category-om617"],"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\/2961","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=2961"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2961\/revisions"}],"predecessor-version":[{"id":2962,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2961\/revisions\/2962"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}