Engines of liquid cooling, line four-cylinder, with one (SOHC) or two (DOHC) camshafts, located in a head of the block of cylinders, are installed cross in a forward part of the car. The bent shaft has five radical bearings. In the central radical bearing persistent half rings which regulate an axial side play of a bent shaft are located. The camshaft is given by a gear belt from a cogwheel of a bent shaft. The gear belt rotates also intermediate shaft of the drive of the distributor of ignition, the oil pump and on carburetor engines of the fuel pump. Cams of the camshaft press on valves through hydraulic pushers which automatically compensate thermal gaps of valves. On DOHC engines from a bent shaft by means of a gear belt the camshaft of final valves from which in turn by means of chain transfer the camshaft of inlet valves is given is given. The oil pump of gear type, is installed in the engine pallet.

Without removal of the engine from the car it is possible to perform the following works:

— check of a compression in cylinders;

— removal and installation of a cover of a head of the block of cylinders;

— removal and installation of a head of the block of cylinders;

— removal and installation of a pulley and cogwheel of a bent shaft;

— replacement of cuffs of a bent shaft;

— removal and installation of a belt of the GRM drive;

— replacement of an oil filter;

— removal and installation of the oil pump;

— removal and installation of the oil pallet;

— removal and installation of a flywheel;

Fig. 3.1. Support of fastening of the power unit: I \back right; II \back left; III \lobby; 1–7 – bolts.

— replacement of support of the power unit (engine, coupling and transmission assembled) (fig. 3.1) .

For removal of intermediate and cranked shaft it is necessary to dismantle previously the engine from the car.