BMW 3 Series E30 car engine power system

Engine power supply system. General information
The engine fuel system includes the fuel tank, fuel lines, fuel filter, fuel pump and carburetor or fuel injection device with air filter. The fuel tank is...

Carburetor adjustment
Each carburetor is checked and adjusted at the factory. The factory setting should not be changed. Power loss and increased fuel consumption are most often...

Rules for maintaining cleanliness when working with the fuel system
When working with the fuel system, it is imperative to follow the following rules: Before removing, thoroughly clean the connection points and their...

Checking and adjusting idle speed and CO content
Warm up and turn off the engine. The oil temperature should be at least 60°C. Turn off electrical consumers. Check the condition of the air filter element (see...

Carburetor PIERBURG-2B4
If there are any deviations, adjust the idle speed using adjusting screw "1". Check the CO content. For the specified value, see the table in the section "...

Checking and adjusting the performance of the accelerator pump
The amount of fuel injected by the accelerator pump must be checked in the case of increased fuel consumption and transient disturbances when gas is supplied,...

Removal and installation the carburetor
Removal Disconnect the ground wire from the battery. Remove the air filter (see section " Removal and installation the air filter "). Remove the throttle cable...

Carburetor PIERBURG-2BE
Installation Remove the rag, place the carburetor on the insulating flange and tighten the mounting screws with a tightening torque of 10 Nm. Connect the fuel...

Adjusting the throttle cable
Caution: The gas cable is sensitive to bending and therefore requires special care during installation. A single slight bend in the cable may cause it to break...

Disconnecting the throttle cable from the carburetor
Remove the air filter (see section " Removal and installation the air filter "). Apply gas with throttle lever "1" to relieve pressure on nipple "6" of the...

Checking the idle speed — adjusting the CO content
The 2BE carburetor does not have an idle speed adjustment screw. To increase the idle speed slightly, you can connect the plug-in connection on the carburetor...

Checking, removing and installing the air damper regulator
The air damper, mounted on an eccentric support, roughly corresponds to the air damper on the previous carburetor. The air damper regulates the ratio of the...

Removal and installation, checking of the throttle valve regulator
The throttle valve regulator is required for automatic control of engine starting, warming up, operation at maximum speed, idle speed, shutdown in forced...

Removal and installation, testing of the throttle potentiometer
The throttle potentiometer is connected to its shaft and is a throttle position sensor for the carburetor control unit. Removal Remove the air filter (see...

Removal and installation the air filter
Removal Unscrew bolt "1". Open the quick release latches (arrows) and remove the air filter cover. Remove the filter element. Loosen the nuts (arrows) securing...

Basic data of the carburetor
Carburetor type - 2B4 Release period: September 1982 – August 1983. Index - 1284605.9 Idle speed - 850±50 rpm CO content - max 1.0% Carburetor type - 2BE...

Removal and installation, checking of fuel level sensor
When the fuel level in the fuel tank drops, the float of the fuel reserve sensor drops. At the same time, the resistance of the sensor, taken from the sliding...

Removal and installation the fuel pump
The fuel pump is located on the side of the cylinder head and is driven by the camshaft. Removal Warning: Do not make open fire! Fire hazard! Close the inlet...

Carburetor maintenance work
Replacing the air filter element The filter element should be replaced every 20,000 km. In case of heavy dustiness, replacement should be carried out more...

Carburetor fault diagnostics
To troubleshoot using this table, the necessary conditions are the perfect adjustment and operation of the engine, all units mated to the carburetor, as well...

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