Automotive cooling and lubrication system VAZ-2108

Engine cooling system — design description
The cooling system is liquid, closed type, with forced circulation of liquid, with a translucent expansion tank. The cooling system consists of a centrifugal pump 11 (figure 7),...

Engine lubrication system — design description
The main and connecting rod bearings of the crankshaft, the camshaft supports are lubricated under pressure. The cylinder walls, pistons and piston rings, piston pins, camshaft...

Radiator of the cooling system — removal and installation
The removal operations are performed on a cold engine. Open the heater tap and remove the plug from the expansion tank. Unscrew the drain plugs of the radiator and cylinder block,...

Oil pump — removal and installation
To remove the pump, remove the front right wheel, raise the car on a lift, turn the steering wheel all the way to the right and drain the oil from the engine crankcase. Having...

Coolant pump — disassembly and assembly
To disassemble, press the toothed pulley 9 ( see figure 8 ) of the pump. Unscrew the locking screw 1 and press out the shaft 5 together with the impeller 4, bearing 8 and seal....

Oil pump — disassembly and assembly
For disassembly, secure the cover 9 ( see figure 10 ) of the pump in a vice and unscrew the plug 6 of the pressure-reducing valve. Take out the spring 5 and valve 4. Unscrew the...

Coolant pump — inspection and repair
Remove deposits from the impeller, housing and wash the parts. Check the axial clearance of the bearing with the shaft, which should not exceed 0.13 mm under a load of 5 kgf. If...

Electric Fan — Checking and Repairing
It should turn on with the engine running when the coolant temperature indicator needle moves into the red zone of the scale. If the fan does not turn on, this indicates a fault...

Radiator of the cooling system — inspection and repair
After removing the radiator, check its tightness in a bath of water. To do this, close the radiator pipes and supply compressed air under a pressure of 1 kgf/cm². Lower the...

Cooling system thermostat — testing and repair
The thermostat is checked for the temperature at which the main valve begins to open and for the stroke of the main valve. The thermostat is installed on the BS-106-000 stand and...

Replacing the coolant
Remove the expansion tank cap and open the interior heater tap. Unscrew the mounting bolts and remove the engine splash guard. Unscrew the two drain plugs (in the radiator and...

Oil pump — inspection and repair
After disassembling, all parts are washed in kerosene or gasoline, blown with compressed air and their condition is checked. The aluminum cover in the plane of contact of the...

Flushing of crankcase ventilation parts
Remove the ventilation hoses, unscrew the fastening nuts and remove the cylinder head cover. Unscrew the two bolts securing the oil separator housing, remove the housing and the...

Engine oil change
Warm up the engine, unscrew the drain plug and drain the oil into a container. Wait at least 10 minutes for the oil to drain completely. Without removing the oil filter, drain the...

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More articles from other manuals on VAZ cars:
➠ Power unit: Cooling system VAZ-2106 (1976-2006)
➠ Power unit: Cooling system VAZ-2112 (1999-2007)
➠ Power unit: Cooling system VAZ-2114 (2004-2013)
➠ Power unit: Cooling and lubrication system VAZ-11113 (1996-2003)
➠ Power unit: Cooling system VAZ-21011 (1974-1983)

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