PETROL INJECTION SUPPLY – Audi 80
Five different injection systems were used in the Audi 80 B3 engines.
The K-Jetronic injection system was used in the engine 1,8 dm3, marked with the DZ symbol, and in the engine 1,6 dm3, marked ABB. Hydraulically controlled continuous injection (without breaks) wyróżnia … read on . . .
Checking the KE-Motronic injection system components – Audi 80
The drawings show the location of the various parts. The principles of operation of some parts will be discussed below.
Fuel pump
The fuel pump is checked as described on the page about K-Jetronic injection system.
The descriptions apply to the parts shown in the figure 2.229.
■ Fuel line (2) returns to the tank … read on . . .
Adjustment and testing of the KE-Motronic injection system – Audi 80.
The KE-Motronic injection system is installed in the engines 2,0 dm3 of both eight-valve ones, as well as sixteen-valve. The description applies to the 3A engine. A special feature is the blocking of the ignition and injection systems, that is, the operation of both systems is directed from a common control device. … read on . . .
Keihin carburetor 2 – Testing the idle speed boost system (Automatic Transmission).
On cars with an automatic transmission, the carburetors have a built-in throttle, the idling speed may not be reduced below when shifting gears 850 rpm.
■ Bring the engine to operating temperature.
■ Depress the start lever cable ("Suction”).… read on . . .
Float position adjustment
The float position must only be adjusted when the needle valve or the float is replaced.
■ Set the carburetor cover to the position shown in the illustration 2.177. The ball of the valve needle sits flexibly in the needle – need caution, so that the ball is not pressed in.
■ Check dimension "a with a depth gauge” between the upper … read on . . .
Idle adjustment on a cold engine (opening the throttle)
If the engine idles constantly, it is most often the "fast" idle that needs to be adjusted. Before making adjustments, warm up the engine to operating temperature. Ignition settings and idle speed must be correct.
■ Connect the tachometer according to the manufacturer's recommendations.
■ Remove the air filter.… read on . . .
Keihin II carburetor adjustment
The expense of the accelerating pump:
A measuring cylinder is required to measure the flow rate (measuring cup) and funnel.
■ Remove the carburetor.
■ Remove the carburetor cover.
■ Fill the float chamber with fuel.
■ Reinstall the cover.
■ Tighten the lever (1, Lynx. 2.174) to the piston (2); there must be no play between the lever and the piston.… read on . . .
Keihin II carburetor repair
In the drawings 2.169, 2.170 i 2.171 shows the carburetor in parts.
When repairing the carburetor, follow the instructions on the page 136. The carburetor can be disassembled in the following order.
■ Remove the split pins (4, Lynx. 2.169). of the rod ends (6), then remove all parts attached to the pull rod. Remove the screws … read on . . .
Keihin II Carburetor Removal and Installation
The design and principle of operation of the Keihin I and Keihin II carburetors are similar to each other. The figure shows the carburetor mounting components.
Lynx. KEIHIN II CARBURETOR MOUNTING DETAILS
1 – Keihin II carburetor
2 – fuel supply
3 – choke cable”
4 – throttle cable”
5 … read on . . .
Most of the maintenance work can be done independently. However, it is often better to carry out some activities at a service station. These include activities, for which special tools are necessary, experience or measuring instruments, and activities, which the service station can do faster.
Listed below, however, you should regularly do simple tasks yourself. They are … read on . . .