Before VIN 343314

DISASSEMBLY AND ASSEMBLY
^ Always replace with new oil seal and gasket.
^ When installing oil pump, apply engine oil to inner and outer gears.
^ Be sure that O-ring is properly installed.

INSPECTION
Using a feeler gauge, straightedge and micrometers, check the following clearances:














^ If the tip clearance (2) exceeds the limit, replace gear set.
^ If body to gear clearances (1, 3, 4, 5) exceed the limit, replace oil pump body 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. Check that it falls smoothly into the valve hole by its own weight.
If damaged, replace regulator valve set or oil pump assembly.