15. Oil Pump Inspection

Oil Pump Inspection





Important:
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.


1. Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.

* The standard body clearance is 0.1-0.17 mm (0.0039-0.0067 in).

* The maximum body clearance is 0.17 mm (0.0067 in).





Important:
If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.


2. Measure the tip clearance between the driven gear teeth and drive gear teeth.

* The standard tip clearance is 0.07-0.15 mm (0.0028-0.0059 in).

* The maximum tip clearance is 0.15 mm (0.0059 in).





Important:
If the side clearance is greater than the maximum, replace the drive gear, driven gear, or pump body.


3. Using a steel straight edge and feeler gauge, measure the side clearance of both gears.

* The standard side clearance is 0.02-0.05 mm (0.0008-0.002 in).

* The maximum side clearance is 0.05 mm (0.002 in).





Important:
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.


4. Using a dial indicator, measure the inside diameter of the oil pump body bushing.

* The standard inside diameter is 38.126 mm (1.501 in).

* The maximum inside diameter is 38.188 mm (1.5034 in).





Important:
If the inside diameter is greater than the maximum, replace the stator shaft.


5. Using a dial indicator, measure the inside diameter of the stator shaft bushings.

* The standard inside diameter is 18.437 mm (0.7258 in).

* The maximum inside diameter is 18.5 mm (0.728 in).