SCHEMATIC OF LUBRICATION SYSTEM

LUBRICATION SYSTEM

SYSTEMS OPERATION

LUBRICATION SYSTEM

SCHEMATIC OF LUBRICATION SYSTEM

(Industrial Engine Illustrated)

1. Front cover for the engine. 2. Cylinder head. 3. Oil manifold. 4. Base for the oil cooler. 5. Bypass valve. 6.

Oil cooler. 7. Oil pump. 8. Cover for oil pump. 9. Suction bell for oil pump. 10. Bypass valve. 11. Bypass

valve. 12. Oil filters.

than 75 to 80 psi (5.3 to 5.6 kg/cm2) the bypass valve (5)

The lubrication system uses a six lobe rotor type oil

pump (7). Bolts hold the cover for the oil pump (8) on the

will open. This permits the oil that is not needed to go to

front cover for the engine (1). The gear on the crankshaft

the inlet oil passage of the oil pump.

drives the outer rotor. The outer rotor has rotation in a

bearing in the front cover for the engine. The inner rotor

Oil from the oil pan is pulled through the suction bell

goes on a short shaft in the front cover for the engine.

for the oil pump (9) by oil pump (7). The oil is sent by the

The inner rotor is driven by the outer rotor.

pump to an oil passage in the front cover for the engine

(1). Oil from this passage goes to the cylinder block and

A bypass valve (5) in the cover for the oil pump (8)

on to base for the oil cooler (4). The base for the oil

controls the pressure of the oil coming from oil pump (7).

cooler is on the left side of the engine near the front of

The pump can put more oil into the system than needed.

the engine. Bypass valve (10) in the base for the oil

When the pressure of the oil going into the engine is more

cooler