engines
The engine of a car is the engine that drives a car.
This section describes the design, maintenance, and repair of engines.
Some engines and their features are described directly in the sections that describe this vehicle.
Removing the camshaft was discussed in the article - "Dismantling the cylinder head» .
With increased wear of the camshaft in the engine, oil pressure may drop and valve knock may appear even with serviceable hydraulic lifters.
We conditionally remove the gear and the oil pump drive roller from the engine dismantled from the car.
To remove the oil pump drive gear, unscrew the generator mounting bracket (article - engine disassembly).
The drive of the gas distribution mechanism of the VAZ-2123 engine consists of sprockets, a chain, a shoe, a damper and a hydraulic chain tensioner.
The engine chain is single-link, unlike the engines of previous models.
The timing chain tensioner is located on the right side of the engine above the coolant pump.
Oil is supplied to the hydraulic tensioner through a seamless steel tube with a diameter of 6 mm with tips.
The main dimensions of the crankshaft are given in Figure 1.
Crankshaft - cast, cast iron, five-bearing.
It is possible to regrind the crankshaft journals during repairs with a diameter reduction of 0.25; 0.5; 0.75; and 1 mm.
