Pic. 101. Section of the upper oil filter housing.
1 - upper oil filter housing,
2 - thermostat plug,
3 - check valve,
4 - valve,
5 - thermostat,
6 - valve spring,
a - from the oil pump,
c - to the lower filter housing,
c - to the main bearings,
d - to the oil cooler,
e - from the oil cooler to the lower filter housing.
From the upper housing, the oil passes through a paper filter element in the lower housing.
The scheme of the lubrication system of an eight-cylinder engine is shown in rice. 103.
A diagram of the lubrication system for a six-cylinder engine is shown in rice. 102. The drive of the gear pump of the lubrication system from the intermediate shaft. Oil is supplied to the pump through an elastic pipe and a mesh in the oil receiver. An elastic pipe allows you to install oil crankcases of various designs on engines.
From the gear pump, pressurized oil flows to the crankshaft main bearings and through channels in the crankshaft to the connecting rod bearings. Part of the oil flows to the camshaft bearings and provides lubrication to all parts of the valve mechanism. The cylinder bore, pistons and piston pins are splash lubricated.
A pressure reducing valve is located in the cylinder block, and in six-cylinder engines, in addition, in the oil pump housing.
On six-cylinder engines, the oil filter is located on the left and on eight-cylinder engines on the right at the bottom of the cylinder block.