Oil Pump: Testing and Inspection

Oil Pump
Inspection
Using a feeler gauge, check the following clearances:

Standard clearance:






If any clearance exceeds the limit, replace gear set or entire oil pump assembly.






If any clearance exceeds the limit, replace gear set or entire oil pump assembly.

REGULATOR VALVE INSPECTION
1. Visually inspect components for wear and damage.
2. Check oil pressure regulator valve sliding surface and valve spring.
3. Coat regulator valve with engine oil and check to make sure that it falls smoothly into the valve hole by its own weight.
If damaged, replace regulator valve set or oil pump assembly.






OIL PRESSURE RELIEF VALVE INSPECTION
Inspect oil pressure relief valve for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove valve by prying it out with a suitable tool. Install a new valve by tapping it.