4.2.4 Remove the cotter pin
Notice: The cotter pin is nonreusable.
Notice: When removing the cotter pin, be careful not to
let the spring or the spring seat spring out or fall off
abruptly.
4.2.5 Remove the spring seat of the oil pressure relief
valve for the engine oil pump, the coil spring, oil pump
and oil pressure relief valve etc.
4.2.6 Remove the front crankshaft oil seal.
Notice: The oil seal removed may not be reused.
4.3 Routine Inspection
4.3.1 Inspect the engine oil pump for clearance.
4.3.1.1 According to the marks for inner gear and outer
gear in the engine oil pump, put the gears into the engine
oil pump that is in the cylinder block.
4.3.1.2 Measure the clearance between the inner and
outer gears with a feeler gauge
Standard value: 0.05-0.18mm (average value of 9
positions)
Limit: 0.35 mm
Relief Valve
Slide Block Relief Spring Spring Seat
Mark
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