{"id":2459,"date":"2023-11-08T22:21:53","date_gmt":"2023-11-08T22:21:53","guid":{"rendered":"https:\/\/mbci.mackuz.ovh\/?p=2459"},"modified":"2023-11-08T22:21:53","modified_gmt":"2023-11-08T22:21:53","slug":"technical-modifications-revisions-of-model-years","status":"publish","type":"post","link":"https:\/\/mbci.mackuz.ovh\/index.php\/2023\/11\/08\/technical-modifications-revisions-of-model-years\/","title":{"rendered":"Technical modifications (revisions) of model years"},"content":{"rendered":"

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07.2\u2014092 Technical modifications (revisions) of model years<\/strong><\/div>\n<\/div>\n<\/td>\n
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Notes<\/strong><\/div>\n<\/div>\n<\/td>\n
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Below is a description of the different carburetor systems in relation to standard version or model years in relation to each other. Further below are the modi\u00adfications introduced during the model year.<\/div>\n<\/div>\n<\/td>\n
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A. \u00a9 model year 1976<\/div>\n
Differences as compared with standard version<\/div>\n
\u2022\u00a0 \u00a0Float chamber vent valve<\/div>\n
\u2022\u00a0 \u00a0Full load enrichment in stage I no longer applicable<\/div>\n
\u2022\u00a0 \u00a0Idle speed combination jet<\/div>\n
\u2022\u00a0 \u00a0Vacuum connection for vacuum booster of EGR<\/div>\n
\u2022\u00a0 \u00a0Carburetor cover with raised centering flange for air filter<\/div>\n
\u2022\u00a0 \u00a0Draw-off connection for fuel evaporation control system and crankcase breather<\/div>\n
\u2022\u00a0 \u00a0Pre-atomizer with slot<\/div>\n
\u2022\u00a0 \u00a0New nozzle line-up (refer to adjusting data)<\/div>\n
\u2022\u00a0 \u00a0New insulating flange<\/div>\n
\u2022\u00a0 \u00a0Choke cover-stepped heater<\/div>\n<\/div>\n<\/td>\n
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214 Float chamber vent valve (vacuum-actuated)<\/div>\n
237\u00a0 \u00a0Vacuum connection for vacuum booster of EGR<\/div>\n
238\u00a0 \u00a0 Idle speed combination jet<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/1<\/div>\n<\/div>\n<\/td>\n
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Float chamber vent valve<\/strong><\/div>\n<\/div>\n<\/td>\n
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This valve (arrow) is vacuum-controlled. With the engine stopped and the ignition switched off the vent valve is set to external venting, as a result of which the fuel evaporation vapors will flow from float chamber into charcoal canister. This will improve hot starting.<\/div>\n<\/div>\n<\/td>\n
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Idle speed combination jet<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The idle speed fuel jet and the idle speed air jet are united into a combination jet (238).<\/div>\n
Access to idle speed fuel jet is thereby improved. Sealing is by means of a sealing ring (239).<\/div>\n<\/div>\n<\/td>\n
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Draw-off connection for fuel evaporation control system and crankcase breather<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The fuel evaporation vapors from float chamber and fuel tank stored in charcoal canister, as well as the vapors of the crankcase venting system are drawn off in direction of arrow by way of a draw-off connection at the rear on carburetor while the engine is running.<\/div>\n<\/div>\n<\/td>\n
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1\u00a0 \u00a0 From charcoal canister<\/div>\n
2\u00a0 \u00a0 From crankcase venting system<\/div>\n<\/div>\n<\/td>\n
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Pre-atomizer with slot<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The pre-atomizer is provided with a slot (arrow) to improve atomization of the fuel.<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/2<\/div>\n<\/div>\n<\/td>\n
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New insulating flange<\/strong><\/div>\n<\/div>\n<\/td>\n
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The new insulating flange is provided with a groove (arrow) by means of which the fuel evaporation vapors and the crankcase evaporation vapors are drawn off into stage II.<\/div>\n<\/div>\n<\/td>\n
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107-9 854\/1<\/div>\n<\/div>\n<\/td>\n
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Choke cover-stepped heater<\/strong><\/div>\n<\/div>\n<\/td>\n
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107-10044<\/strong><\/div>\n<\/div>\n<\/div>\n<\/td>\n
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To improve the warming-up characteristics the starter cover of the automatic choke is heated in two steps. Below 17 \u00b0C oil temperature at reduced output via pre-resistor (46), above 17 \u00b0C oil temperature the choke cover is heated at normal output.<\/div>\n<\/div>\n<\/td>\n
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46 Pre-resistor for choke cover-stepped heater<\/div>\n<\/div>\n<\/td>\n
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Fuel pump<\/strong><\/div>\n<\/div>\n<\/td>\n
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Following the installation of the air pump for air injection, the available space made the installation of a fuel pump with angle drive necessary.<\/div>\n
The closing cap is brazed to housing and can no longer be removed. Cleaning of the filter strainer is no longer necessary.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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107-10953\/1<\/div>\n<\/div>\n<\/td>\n
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Air filter<\/strong><\/div>\n<\/div>\n<\/td>\n
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The expanding element (arrow) for controlling the intake air preheater has been moved inside air filter.<\/div>\n
For air injection the air filter is provided with an additional hose connection (1). For reasons of avail\u00adable space, the air injection line (2) is attached below to air filter.<\/div>\n<\/div>\n<\/td>\n
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109-10802\/2<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/3<\/div>\n<\/div>\n<\/td>\n
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B. \u00a9 model year 1976<\/strong><\/div>\n
Differences as compared with standard version<\/strong><\/div>\n<\/div>\n<\/td>\n
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\u2022\u00a0 \u00a0Idle speed combination nozzle<\/div>\n
\u2022\u00a0 \u00a0Needle-controlled enrichment in stage I no longer applicable<\/div>\n
\u2022\u00a0 \u00a0Vacuum connection (237) on carburetor cover for vacuum booster of EGR<\/div>\n
\u2022\u00a0 \u00a0Carburetor cover with raised centering flange for air filter<\/div>\n
\u2022\u00a0 \u00a0New fuel return valve with fuel pressure control<\/div>\n
\u2022\u00a0 \u00a0New expanding element for thermostatically controlled bypass choke (TN choke)<\/div>\n
\u2022\u00a0 \u00a0Thermo delay valve for choke<\/div>\n
\u2022\u00a0 \u00a0Choke cover-stepped heater<\/div>\n
\u2022\u00a0 \u00a0Pre-atomizer with slot<\/div>\n
\u2022\u00a0 \u00a0Draw-off connection for crankcase ventilation<\/div>\n
\u2022\u00a0 \u00a0Orifice (throttle) in hose to vacuum governor<\/div>\n
\u2022\u00a0 \u00a0Jet line-up (refer to adjusting data)<\/div>\n<\/div>\n<\/td>\n
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236\u00a0 \u00a0 Thermostatically controlled bypass choke (TN choke)<\/div>\n
237\u00a0 \u00a0 Vacuum connection for vacuum booster of EGR<\/div>\n
238\u00a0 \u00a0 Idle speed combination jet<\/div>\n<\/div>\n<\/td>\n
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Idle speed combination jet<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The idle speed fuel and idle speed air jets are united into a combination jet (238) which can be removed in upward direction.<\/div>\n
Access to idle speed fuel jet is thereby improved. Sealing by means of rubber sealing ring (239).<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/4<\/div>\n<\/div>\n<\/td>\n
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New fuel return valve with fuel pressure regulation<\/strong><\/div>\n<\/div>\n<\/td>\n
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The new fuel return valve is simultaneously designed as a fuel pressure regulator. Regulation of the fuel return flow rate and the fuel pressure to approx. 0.2 bar gauge pressure is performed by means of a spring-loaded valve. Fuel level fluctuations will then be widely avoided.<\/div>\n
The former vacuum connection on fuel return valve is no longer applicable.<\/div>\n
The new fuel return valve can also be installed on carburetors used up to now. Vacuum hose for fuel return valve and distributor are no longer installed. Vacuum hose from vacuum governor is directly plugged on connection „C” on throttle valve member.<\/div>\n<\/div>\n<\/td>\n
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W7-107O5<\/strong><\/div>\n<\/div>\n<\/td>\n
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New expanding element for thermostatically con\u00adtrolled bypass choke (TN choke)<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The dimensions of the new expanding element are larger and the housing had to be enlarged accordingly.<\/div>\n
The new TN choke can also be installed on the type of carburetors used up to now.<\/div>\n<\/div>\n<\/td>\n
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K)7-10704<\/strong><\/div>\n<\/div>\n<\/td>\n
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Thermo delay valve for choke<\/strong><\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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The thermo delay valve makes sure that at tempera\u00adtures above approx. \u201412 \u00b0C the choke valve is not immediately pulled after the engine is started, but at a delay. There is no delay by the thermo delay valve at temperatures below approx. \u201412 \u00b0C.<\/div>\n<\/div>\n<\/td>\n
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254 Thermo delay valve<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/5<\/div>\n<\/div>\n<\/td>\n
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Choke cover-stepped heater<\/strong><\/div>\n<\/div>\n<\/td>\n
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The choke cover of the automatic carburetor choke is heated in two steps. Below 17 \u00b0C oil temperature at reduced output by way of a pre-resistor (46), above 17 \u00b0C oil temperature the choke cover is heated directly.<\/div>\n<\/div>\n<\/td>\n
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Model 114<\/div>\n
46 Pre-resistor for choke cover-stepped heater<\/div>\n<\/div>\n<\/td>\n
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Model 116<\/div>\n
46 Pre-resistor for choke cover-stepped heater<\/div>\n<\/div>\n<\/td>\n
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Pre-atomizer with slot<\/strong><\/div>\n<\/div>\n<\/td>\n
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The pre-atomizer has a slot (arrow), by means of which the atomization of the fuel is still further improved.<\/div>\n<\/div>\n<\/td>\n
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Draw-off connection for crankcase ventilation<\/strong><\/div>\n
The crankcase evaporation vapors are guided from cylinder head to draw-off connection at the rear on carburetor and are drawn off by the engine below throttle valves of stage II in direction of arrow.<\/div>\n
Throttle in hose to vacuum governor<\/strong><\/div>\n
A throttle is installed in line to vacuum governor. As a result, the throttle valve will be dampened when returning to idle upon deceleration.<\/div>\n<\/div>\n<\/td>\n
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07.2.2 la-092\/6<\/div>\n<\/div>\n<\/td>\n
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Insulating flange<\/strong><\/div>\n<\/div>\n<\/td>\n
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To guide the starting and warming-up mixture from thermostatically controlled bypass choke into intake pipe, the insulating flange has been given a wide groove between stages I, and a narrow groove between stages II for drawing off crankcase evaporation vapors.<\/div>\n
Attention!<\/strong><\/div>\n
Do not install this insulating flange in carburetors used up to now.<\/div>\n<\/div>\n<\/td>\n
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\"m110<\/div>\n<\/td>\n
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107-9854<\/em><\/div>\n<\/div>\n<\/td>\n
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Air cleaner<\/strong><\/div>\n<\/div>\n<\/td>\n
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<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The air cleaner is provided with an additional hose connection for air relief (air discharge).<\/div>\n
For reasons of available space, the air relief (air discharge) is attached below on cleaner.<\/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
109-10802<\/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
Fuel pump<\/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 lack of space following installation of air pump for air relief (air discharge) the fuel pump had to be provided with an angle drive.<\/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
107-9099<\/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
07.2.2 la-092\/7<\/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\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
C. <\u00ae> model year 1973 Federal<\/div>\n
Differences as compared with standard version<\/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
\u2022\u00a0 \u00a0Needle-controlled enrichment in stage I no longer applicable<\/div>\n
\u2022\u00a0 \u00a0Float chamber vent shaft with protective flange cover<\/div>\n
\u2022\u00a0 \u00a0Modified jet line-up, new jet needle for stage II<\/div>\n
\u2022\u00a0 \u00a0Location of vacuum bores changed<\/div>\n
\u2022\u00a0 \u00a0New insulating flange<\/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
Insulating flange<\/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 insulating flange is provided with two grooves (arrows) along which a portion of the emissions is returned to intake pipe.<\/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
Left = top Right = bottom<\/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
Air filter<\/strong><\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
An additional flap (arrow) is mounted in air filter intake pipe above connection for intake air preheater. The flap prevents the escape of fuel evaporation vapors of warm engine as a result of preheating the intake air.<\/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
07.2.2 la-092\/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<\/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<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Modifications in model year 1973<\/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
Insulating flange<\/strong><\/div>\n
The grooves (arrows) for controlling the exhaust gas return volume were milled flatter to reduce the res\u00adpective exhaust emission volume.<\/div>\n
This in turn improved driving characteristics at partial load (complaints about bucking). Former insulating flanges can be exchanged for modified version.<\/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
Left = top Right = bottom<\/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
Identification<\/strong><\/div>\n
Depth of grooves (arrows) 2.3 mm (formerly 3.0 mm).<\/div>\n
Start of production: <\/strong>October 1972<\/div>\n
Model\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Starting chassis end no.<\/div>\n
114.060\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 006 650<\/div>\n
114.073\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 001326<\/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
07.2.2 la-092\/9<\/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<\/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<\/tr>\n
<\/td>\n\n
\n
<\/div>\n<\/div>\n

 <\/td>\n

<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Choke cover<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The choke cover heater has been changed to 12 ohms (16 ohms before).<\/div>\n
The bimetallic spring is now heated faster, the auto\u00admatic choke is shut off earlier. Former choke cover exchangeable for modified version.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
89 Choke cover code number<\/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
Identification<\/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
Choke cover code number 89<\/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
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Start of production:<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\n
December<\/div>\n<\/div>\n<\/td>\n
\n
\n
1972<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Model<\/div>\n<\/div>\n<\/td>\n
\n
\n
Starting chassis end no.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
114.060 114.073<\/div>\n<\/div>\n<\/td>\n
\n
\n
009 002<\/div>\n<\/div>\n<\/td>\n
\n
\n
560 080<\/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<\/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
Bypass bores for stage II<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The bypass bores of stage II were set 8 mm deeper and increased to 2 mm dia. (1.3 mm dia. before) (lower arrow).<\/div>\n
As a result, improved bypass characteristics from stage I to II. Former carburetor cover exchangeable for modified version.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Layout bypass bore stage II<\/div>\n
Upper arrow = former layout Lower arrow = new layout<\/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
07.2.2 la-092\/10<\/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
Identification<\/strong><\/div>\n
Starting carburetor cover code number 05 modified bypass bores for stage II.<\/strong><\/div>\n
Start of production: <\/strong>January 1973<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Model<\/div>\n<\/div>\n<\/td>\n
\n
\n
Starting chassis end no.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
114.060 114.073<\/div>\n<\/div>\n<\/td>\n
\n
\n
010 439 002 288<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Carburetor cover code number<\/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
Choke housing<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The choke housing installed up to now with separate sheet metal pulldown has been replaced by a cast iron housing with integrated pulldown and choke valve gap adjusting screw (211).<\/div>\n
The choke valve gap adjusting procedure is now easier. Former choke housing exchangeable for modified version.<\/div>\n
The carburetor part number has been changed to 000 070 99 04 (000 070 87 04 before).<\/div>\n
Choke housing with sheet metal pulldown<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
KV-8941<\/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
Cast iron choke housing with integrated pulldown<\/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
Identification<\/strong><\/div>\n
Externally recognized by choke valve gap adjusting screw (211).<\/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
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Start of production:<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\n
May<\/div>\n<\/div>\n<\/td>\n
\n
\n
1973<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Model<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
Starting chassis end no.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
114.060 114.073<\/div>\n<\/div>\n<\/td>\n
\n
<\/div>\n

 <\/td>\n

\n
\n
014 400 003 448<\/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<\/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
07.2.2 la-092\/11<\/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\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
Repair instruction<\/strong><\/div>\n
The modified choke housing can be installed only <\/strong>in combination with a fast idle cam 2nd version (2) with shorter lever.<\/div>\n
A longer bolt is used for fastening choke housing. (Subsequent conversion 07.2\u2014140).<\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Fast idle cam versions<\/div>\n
1\u00a0 \u00a0 For choke housing with sheet metal pulldown<\/div>\n
2\u00a0 \u00a0For cast iron housing with integrated pulldown<\/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
Accelerating pump<\/strong><\/div>\n<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
The adjusting nut with pinch lock has been replaced for a self-locking polystop adjusting nut. Simultane\u00adously the connecting rod has been extended by 2 mm.<\/div>\n
As a result, easier adjustment of injection volume.<\/div>\n
Subsequent installation is possible, connecting rod and adjusting nut are replaced together.<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\"m110<\/div>\n<\/td>\n
\n
\"m110<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Identification<\/strong><\/div>\n
Externally recognized by self-locking polystop adjust\u00ading nut.<\/div>\n
Start of production: <\/strong>June 1973<\/div>\n<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n
<\/td>\n\n
\n
Former version<\/div>\n<\/div>\n<\/td>\n
\n
\n
Present version<\/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
Model<\/div>\n<\/div>\n<\/td>\n
\n
\n
Starting chassis end no.<\/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
114.060 114.073<\/div>\n<\/div>\n<\/td>\n
\n
\n
017 007 004 200<\/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
07.2.2 la-092\/12<\/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

 <\/p>\n

 <\/p>\n

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

    07.2\u2014092 Technical modifications (revisions) of model years   Notes   Below is a description of the different carburetor systems in relation to standard version or model years in relation to each other. Further below are the modi\u00adfications introduced during the model year.   A. \u00a9 model year 1976 Differences as compared with standard version \u2022\u00a0 \u00a0Float chamber vent valve \u2022\u00a0 \u00a0Full load enrichment in stage I no longer applicable \u2022\u00a0 \u00a0Idle speed combination jet \u2022\u00a0 \u00a0Vacuum connection for vacuum booster of EGR \u2022\u00a0 \u00a0Carburetor cover with raised centering flange for air filter \u2022\u00a0 \u00a0Draw-off connection for fuel evaporation control system and crankcase breather \u2022\u00a0 \u00a0Pre-atomizer with slot \u2022\u00a0 \u00a0New nozzle line-up (refer to adjusting data) \u2022\u00a0 \u00a0New insulating flange \u2022\u00a0 \u00a0Choke cover-stepped heater   214 Float chamber vent valve (vacuum-actuated) 237\u00a0 \u00a0Vacuum connection for vacuum booster of EGR 238\u00a0 \u00a0 Idle speed combination jet   07.2.2 la-092\/1       Float chamber vent valve This valve (arrow) is vacuum-controlled. With the engine stopped and the ignition switched off the vent valve is set to external venting, as a result of which the fuel evaporation vapors will flow from float chamber into charcoal canister. This will improve hot starting.   Idle speed combination jet The idle speed fuel jet and the idle speed air jet are united into a combination jet (238). Access to idle speed fuel jet is thereby improved. Sealing is by means of a sealing ring (239).   Draw-off connection for fuel evaporation control system and crankcase breather The fuel evaporation vapors from float chamber and fuel tank stored in charcoal canister, as well as the vapors of the crankcase venting system are drawn off in direction of arrow by way of a draw-off connection at the rear on carburetor while the engine is running. 1\u00a0 \u00a0 From charcoal canister 2\u00a0 \u00a0 From crankcase venting system   Pre-atomizer with slot The pre-atomizer is provided with a slot (arrow) to improve atomization of the fuel.   07.2.2 la-092\/2       New insulating flange   The new insulating flange is provided with a groove (arrow) by means of which the fuel evaporation vapors and the crankcase evaporation vapors are drawn off into stage II.   107-9 854\/1   Choke cover-stepped heater 107-10044 To improve the warming-up characteristics the starter cover of the automatic choke is heated in two steps. Below 17 \u00b0C oil temperature at reduced output via pre-resistor (46), above 17 \u00b0C oil temperature the choke cover is heated at normal output. 46 Pre-resistor for choke cover-stepped heater   Fuel pump   Following the installation of the air pump for air injection, the available space made the installation of a fuel pump with angle drive necessary. The closing cap is brazed to housing and can no longer be removed. Cleaning of the filter strainer is no longer necessary.   107-10953\/1   Air filter   The expanding element (arrow) for controlling the intake air preheater has been moved inside air filter. For air injection the air filter is provided with an additional hose connection (1). For reasons of avail\u00adable space, the air injection line (2) is attached below to air filter.   109-10802\/2   07.2.2 la-092\/3       B. \u00a9 model year 1976 Differences as compared with standard version   \u2022\u00a0 \u00a0Idle speed combination nozzle \u2022\u00a0 \u00a0Needle-controlled enrichment in stage I no longer applicable \u2022\u00a0 \u00a0Vacuum connection (237) on carburetor cover for vacuum booster of EGR \u2022\u00a0 \u00a0Carburetor cover with raised centering flange for air filter \u2022\u00a0 \u00a0New fuel return valve with fuel pressure control \u2022\u00a0 \u00a0New expanding element for thermostatically controlled bypass choke (TN choke) \u2022\u00a0 \u00a0Thermo delay valve for choke \u2022\u00a0 \u00a0Choke cover-stepped heater \u2022\u00a0 \u00a0Pre-atomizer with slot \u2022\u00a0 \u00a0Draw-off connection for crankcase ventilation \u2022\u00a0 \u00a0Orifice (throttle) in hose to vacuum governor \u2022\u00a0 \u00a0Jet line-up (refer to adjusting data)   236\u00a0 \u00a0 Thermostatically controlled bypass choke (TN choke) 237\u00a0 \u00a0 Vacuum connection for vacuum booster of EGR 238\u00a0 \u00a0 Idle speed combination jet   Idle speed combination jet The idle speed fuel and idle speed air jets are united into a combination jet (238) which can be removed in upward direction. Access to idle speed fuel jet is thereby improved. Sealing by means of rubber sealing ring (239).   07.2.2 la-092\/4       New fuel return valve with fuel pressure regulation   The new fuel return valve is simultaneously designed as a fuel pressure regulator. Regulation of the fuel return flow rate and the fuel pressure to approx. 0.2 bar gauge pressure is performed by means of a spring-loaded valve. Fuel level fluctuations will then be widely avoided. The former vacuum connection on fuel return valve is no longer applicable. The new fuel return valve can also be installed on carburetors used up to now. Vacuum hose for fuel return valve and distributor are no longer installed. Vacuum hose from vacuum governor is directly plugged on connection „C” on throttle valve member. W7-107O5   New expanding element for thermostatically con\u00adtrolled bypass choke (TN choke) The dimensions of the new expanding element are larger and the housing had to be enlarged accordingly. The new TN choke can also be installed on the type of carburetors used up to now.   K)7-10704   Thermo delay valve for choke The thermo delay valve makes sure that at tempera\u00adtures above approx. \u201412 \u00b0C the choke valve is not immediately pulled after the engine is started, but at a delay. There is no delay by the thermo delay valve at temperatures below approx. \u201412 \u00b0C. 254 Thermo delay valve   07.2.2 la-092\/5       Choke cover-stepped heater The choke cover of the automatic carburetor choke is heated in two steps. Below 17 \u00b0C oil temperature at reduced output by way of a pre-resistor (46), above 17 \u00b0C oil temperature the choke cover is heated directly. Model 114 46 Pre-resistor for choke cover-stepped heater   Model 116 46 Pre-resistor for choke cover-stepped heater   Pre-atomizer with slot The pre-atomizer has a slot (arrow), by means of which the atomization of the fuel is still further improved.   Draw-off connection for crankcase ventilation The crankcase evaporation vapors are guided from cylinder head to draw-off connection at the rear on carburetor and are drawn off by the engine below throttle valves of stage II in direction of arrow. Throttle in hose to vacuum governor A throttle is installed in line to vacuum governor. As a result, the throttle valve will be dampened when returning to idle upon deceleration.   07.2.2 la-092\/6       Insulating flange   To guide the starting and warming-up mixture from thermostatically controlled bypass choke into intake pipe, the insulating flange has been given a wide groove between stages I, and a narrow groove between stages II for drawing off crankcase evaporation vapors. Attention! Do not install this insulating flange in carburetors used up to now.   107-9854   Air cleaner   The air cleaner is provided with an additional hose connection for air relief (air discharge). For reasons of available space, the air relief (air discharge) is attached below on cleaner.   109-10802   Fuel pump   For lack of space following installation of air pump for air relief (air discharge) the fuel pump had to be provided with an angle drive.   107-9099   07.2.2 la-092\/7       C. <\u00ae> model year 1973 Federal Differences as compared with standard version   \u2022\u00a0 \u00a0Needle-controlled enrichment in stage I no longer applicable \u2022\u00a0 \u00a0Float chamber vent shaft with protective flange cover \u2022\u00a0 \u00a0Modified jet line-up, new jet needle for stage II \u2022\u00a0 \u00a0Location of vacuum bores changed \u2022\u00a0 \u00a0New insulating flange     Insulating flange   The insulating flange is provided with two grooves (arrows) along which a portion of the emissions is returned to intake pipe.   Left = top Right = bottom   Air filter An additional flap (arrow) is mounted in air filter intake pipe above connection for intake air preheater. The flap prevents the escape of fuel evaporation vapors of warm engine as a result of preheating the intake air.   07.2.2 la-092\/8       Modifications in model year 1973   Insulating flange The grooves (arrows) for controlling the exhaust gas return volume were milled flatter to reduce the res\u00adpective exhaust emission volume. This in turn improved driving characteristics at partial load (complaints about bucking). Former insulating flanges can be exchanged for modified version.     Left = top Right = bottom   Identification Depth of grooves (arrows) 2.3 mm (formerly 3.0 mm). Start of production: October 1972 Model\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Starting chassis end no. 114.060\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 006 650 114.073\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 001326   07.2.2 la-092\/9       Choke cover The choke cover heater has been changed to 12 ohms (16 ohms before). The bimetallic spring is now heated faster, the auto\u00admatic choke is shut off earlier. Former choke cover exchangeable for modified version. 89 Choke cover code number   Identification   Choke cover code number 89   Start of production: December 1972 Model Starting chassis end no. 114.060 114.073 009 002 560 080   Bypass bores for stage II The bypass bores of stage II were set 8 mm deeper and increased to 2 mm dia. (1.3 mm dia. before) (lower arrow). As a result, improved bypass characteristics from stage I to II. Former carburetor cover exchangeable for modified version. Layout bypass bore stage II Upper arrow = former layout Lower arrow = new layout   07.2.2 la-092\/10       Identification Starting carburetor cover code number 05 modified bypass bores for stage II. Start of production: January 1973 Model Starting chassis end no. 114.060 114.073 010 439 002 288 Carburetor cover code number   Choke housing The choke housing installed up to now with separate sheet metal pulldown has been replaced by a cast iron housing with integrated pulldown and choke valve gap adjusting screw (211). The choke valve gap adjusting procedure is now easier. Former choke housing exchangeable for modified version. The carburetor part number has been changed to 000 070 99 04 (000 070 87 04 before). Choke housing with sheet metal pulldown KV-8941   Cast iron choke housing with integrated pulldown   Identification Externally recognized by choke valve gap adjusting screw (211).   Start of production: May 1973 Model   Starting chassis end no. 114.060 114.073   014 400 003 448   07.2.2 la-092\/11       Repair instruction The modified choke housing can be installed only in combination with a fast idle cam 2nd version (2) with shorter lever. A longer bolt is used for fastening choke housing. (Subsequent conversion 07.2\u2014140). Fast idle cam versions 1\u00a0 \u00a0 For choke housing with sheet metal pulldown 2\u00a0 \u00a0For cast iron housing with integrated pulldown   Accelerating pump The adjusting nut with pinch lock has been replaced for a self-locking polystop adjusting nut. Simultane\u00adously the connecting rod has been extended by 2 mm. As a result, easier adjustment of injection volume. Subsequent installation is possible, connecting rod and adjusting nut are replaced together. Identification Externally recognized by self-locking polystop adjust\u00ading nut. Start of production: June 1973 Former version Present version   Model Starting chassis end no.   114.060 114.073 017 007 004 200   07.2.2 la-092\/12          <\/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":[32,27],"tags":[],"class_list":["post-2459","post","type-post","status-publish","format-standard","hentry","category-carburetor-fuel-pump-throttle-linkage","category-m110"],"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\/2459","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=2459"}],"version-history":[{"count":1,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2459\/revisions"}],"predecessor-version":[{"id":2460,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/posts\/2459\/revisions\/2460"}],"wp:attachment":[{"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/media?parent=2459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/categories?post=2459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mbci.mackuz.ovh\/index.php\/wp-json\/wp\/v2\/tags?post=2459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}