FUEL SYSTEMSYSTEMS OPERATIONTM 5-3805-263-14&P-2Oil also goes from the bottom of the front governorhousing through a passage to the fuel pump housingand to governor servo (2). The governor servo giveshydraulic assistance to move the fuel rack.The remainder of the oil goes through passagesto the rear of rear governor housing (3) and into thecompartment for the governor controls. Drain hole(8) keeps the oil at the correct level. The oil in thiscompartment is used for lubrication of the govern-or control components and the oil is the supplyfor the dashpot.The internal parts of the governor are lubricatedby oil leakage from the servo and the oil is thrown byparts in rotation. The flyweight carrier thrust bear-ing gets oil from the passage at the rear of thecamshaft.Oil from the governor returns to the oil panthrough a hole in the bottom of the front governorhousing and through passages in the support andcylinder block.GOVERNORThe governor controls the amount of fuel neededby the engine to maintain a desired rpm.The governor flyweights (8) are driven directly bythe fuel pump camshaft. Riser (10) is moved byflyweights (8) and governor spring (1). Lever (7)connects the riser with sleeve (2) which is fastened tovalve (3). Valve (3) is a part of governor servo (5) andmoves piston (4) and fuel rack (6). The fuel rackmoves toward the front of the fuel pump housing (tothe right in the illustration) when moved in theFUEL OFF direction.1-9
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