To disassemble, unscrew the two bolts securing the oil pump cover to the housing. Separate the cover from the body. Remove drive shaft and oil pump drive gear. Wash the pump housing with gasoline.
If the oil pump parts are heavily soiled, remove the oil receiver. remove the oil strainer and clean it.
Check the gap between the gear teeth. which should be equal to 0.05 mm (maximum allowable 0.20 mm), and the gap between the outer diameter of the gears and the bore of the oil pump housing, which should be no more than 0.15 mm (pic. 2-154).
Assemble the oil pump in the reverse order of disassembly.
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