A drive gear is installed on the toe of the crankshaft of the engine, used to drive the balance shafts and high pressure fuel pump (through the gear system) and gas distribution mechanism. Thrust half rings are installed in the support of the third main journal.
Main bearing caps are separate. The main bearing shells are made of aluminum alloy. The upper main bearing shells have oil holes and grooves through which oil is supplied to the crankshaft.
A damper and a special cover are installed on the crankshaft pulley, which serve to reduce vibration and noise.
Crankshaft.
1 - crankshaft,
2 - upper shells of main bearings,
3 - upper thrust half ring,
4 - lower thrust half ring,
5 - lower shells of main bearings,
6 - main bearing caps,
7 - fillet.