Carburetor power supply system VAZ-2104

All articles on the device and repair of components and assemblies of the fuel supply system of the carburetor engine of VAZ-2104 Zhiguli (station wagon) and their modifications.

Description of the design of the carburetor engine power supply
Details of the fuel system of a carburetor engine: 1 - carburetor; 2 - warm air intake; 3 - cold air intake; 4 - thermostat; 5 - air filter housing cover; 6 - filter element; 7 -...

Thermoregulator — changing the position of the damper
1. Depending on the ambient temperature, set the thermostat damper to one of three possible positions: COLD cold air intake (summer); Average intake of cold and warm air...

Air Filter Element — Replacement
The air filter element is replaced according to the maintenance schedule (see " Periodic maintenance "). When operating the vehicle in dusty and dirty conditions, it is...

Fuel filter — installation and replacement
It is recommended to install a fine fuel filter on a vehicle that is not equipped with one. The filter itself and two worm clamps with a diameter of 8-16 mm are required for...

Air filter housing — removal and installation
Removal 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Clean the air filter housing from dirt. 3. Using pliers, loosen the clamp...

Fuel pump — removal and installation
Removal 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Use a rag to clean off dirt and wash the outer surface of the fuel pump with...

Fuel pump filter — cleaning
We clean the filter without removing the pump from the vehicle. 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Use a rag to clean...

Fuel Pump Diaphragm — Replacement
Removal 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Use a rag to clean off any dirt and wash the outer surface of the fuel pump...

Fuel tank — removal and installation
Removal 1. Place the vehicle on an inspection pit or overpass (see " Preparing a car for maintenance and repair "). 2. Disconnect the wire from the negative terminal of the...

Carburetor Fuel Filter — Cleaning
1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Clean the housing and plug of the carburetor fuel filter from dirt. 3. Key by 19 mm...

Carburetor Drive — Checking and Adjusting
An assistant will be needed to complete the job. 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Remove the air filter housing from...

Air damper drive — checking and adjustment
1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Remove the air filter housing from the carburetor studs (see " Air filter housing -...

Fuel level in the float chamber — checking and adjustment
The fuel level in the float chamber is checked when replacing the float, needle valve or when disassembling the carburetor. The fuel level and supply required for normal operation...

Idle speed — adjustment
Idle speed adjustment is performed after carburetor repair, as well as when the engine is running unstable at idle speed. The crankshaft speed at idle should be within 820-900...

Starter — checking and adjustment
To complete the work, you will need a template made of thick paper 5.0-5.5 mm wide and a piece of wire 0.7-0.8 mm in diameter. 1. Prepare the vehicle for operations (see "...

Carburetor — removal and installation
Removal 1. Prepare the vehicle for operations (see " Preparing a car for maintenance and repair "). 2. Remove the air filter housing from the carburetor studs (see " Air filter...

Needle valve and float — replacement
1. Remove the carburetor cover (see below, " Carburetor cover - removal and disassembly "). 2. Using a punch, knock the float axis out of the bracket hole on the cover. 3. Remove...

Carburetor Cover — Removal and Disassembly
The need to remove the carburetor cover arises when adjusting the fuel level in the float chamber, checking and replacing the needle valve, blowing out and cleaning the jet...

Carburetor body — disassembly
We disassemble the carburetor body to wash its parts, clean the channels, replace defective parts, gaskets and diaphragms. The body consists of a large number of small parts, so...

Pneumatic throttle actuator — removal and installation
You can remove the pneumatic drive without removing the carburetor from the car. To do this, simply remove the air filter housing (see " Air filter housing - removal and...

Forced idle economizer system (FIES)
Forced idle economizer system (FIES): 1 - throttle actuator lever; 2 - micro switch; 3 - economizer; 4 - mixture quantity screw; 5 - relay and fuse mounting block; 6 - ignition...

Forced idle economizer (FIE) — checking and replacement
Examination 1. If the engine does not work or runs unsteadily at idle, it is possible that due to a leak in the diaphragm, the economizer valve is completely or partially blocking...

Idle speed control system microswitch — checking and replacement
1. Disconnect the wire blocks from the microswitch terminals (see " Carburetor - removal and installation "). 2. Clean the microswitch from dirt and rinse it with white spirit. 3....

Electro-pneumatic valve — check and replacement
To complete the job, you will need a piece of clean hose similar to the hoses connected to the valve. 1. Clean the solenoid valve from dirt. 2. To check for leaks, disconnect the...

Electro-pneumatic valve control unit — check and replacement
The control unit of the electro-pneumatic valve is installed on the left mudguard in the engine compartment. To complete the work you will need a multimeter. Procedure 1....

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More articles from other manuals on VAZ cars:
➠ Power unit: Fuel system (carburetor) VAZ-2107 (1982-2012)
➠ Power unit: Fuel system (carburetor) VAZ-21214 (1994-2006)

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