Fig. 383. Flywheel: 1 — a gear rim; 2 — bolts of fastening of a gear rim; 3 — the adjusting screw (should act on a distance)

The flywheel of the engine is equipped with a gear rim of the sensor of frequency of rotation of the engine. This gear rim is strengthened on a reverse side of a cranked shaft by means of three bolts tightened by the moment of 10 N · by m. The type of a flywheel was already shown on fig. 383 . Pay attention that the inserted adjusting screw should act on 2,5 — 3,0 mm over a surface (a measurement). For untwisting of bolts of fastening of a flywheel fix it as appropriate in a motionless condition (for example, having inserted a screw-driver into a gear wreath of a flywheel) and weaken flywheel bolts. Bolts of a flywheel cannot be used repeatedly.

Prevention If the surface of a friction of a flywheel has scratches, such can be, for example at replacement of sliping coupling, a flywheel replace.

It is impossible to replace a gear wreath of a flywheel separately from the flywheel. At damage of its teeth it is necessary to replace a flywheel assembled with a gear wreath. Thus it is necessary to check and a teeth of a gear wheel of a starter as they too can be worn-out.

Bolts are tightened by the moment of 60 N · m, and then turn them for 90 °.