Lubrication system for car engines VAZ-2121

All articles on the device and repair of components and assemblies of the engine lubrication system for VAZ-2121 Niva cars and their modifications.

Lubrication system device
The design of the lubrication system is shown in Fig. 2-67. Fig. 2-67. Lubrication system: 1 - oil supply channel to the main bearing; 2 - oil supply channel from the main bearing...

Engine oil change
The oil must be changed on a hot engine. To completely drain the oil, you must wait at least 10 minutes after opening the drain hole. When changing the oil, you should also change...

Oil pump — removal, disassembly and installation
The main dimensions of the pump and its drive are given in Fig. 2-68. Removal and installation If only the oil pump needs to be repaired, remove the engine from the vehicle (see...

Checking the oil pump parts
After disassembling, wash all pump parts with kerosene or gasoline, blow with a stream of compressed air, and then inspect the pump body and cover; if there are cracks in the...

Checking the pressure reducing valve
When repairing the oil pump, check the pressure relief valve. Pay attention to the surfaces of the valve and the housing, as possible contamination or deposits on the mating...

Oil pump drive shaft and gears
There should be no dents or scratches on the surfaces of the roller support journals and on the working surface of the eccentric. The teeth of the gears of the oil pump drive and...

Oil pump drive shaft bushings
Check the inner diameter of the bushings, their press fit in the sockets, and the alignment of the lubrication hole in the front bushing with the channel in the cylinder block...

Oil pump drive gear bushing
Check the bushing press fit. The inner surface should be smooth and free of burrs, otherwise replace the bushing. To press out and press in the bushing, use the A.60326/R mandrel...

Flushing the engine crankcase ventilation system
To flush, disconnect hoses 4 and 8 (Fig. 2-75) of the ventilation system from the pipes, remove flame arrester 5 from hose 4, remove breather cover 3 and flush with gasoline or...

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More articles from other manuals on VAZ cars:
➠ Power unit: Lubrication system VAZ-21011 (1974-1983)
➠ Power unit: Lubrication system VAZ-1111 (1988-1996)
➠ Power unit: Lubrication system VAZ-21051 (1979-2010)

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