Oil Flow For Pump and Governor

TM5-241O-237-34

Oil also goes from the bottom of the front governor housing through a passage to

the fuel pump housing and to governor servo (34). The governor servo gives

hydraulic assistance to move the fuel rack.

The remainder of the oil goes through passages to the rear of rear governor

housing (35), through air fuel ratio control (36) and back into another passage

in the rear governor housing. Now the oil goes into the compartment for the

governor controls. Drain hole (37) keeps the oil at the correct level. The oil

in this compartment is used for lubrication of the governor control components

and the oil is the supply for the dashpot.

The internal parts of the governor are lubricated by oil leakage from the servo

and the oil is thrown by parts in rotation.

The flyweight carrier thrust

bearing gets oil from the passage at the rear of the camshaft.

Oil from the governor returns to the oil pan through a hole in the bottom of the

front governor housing and through passages in the support and cylinder block.

4-4