Oil Pump

U151E AUTOMATIC TRANSAXLE: OIL PUMP:

INSPECTION

1. INSPECT OIL PUMP ASSEMBLY





(a) Turn the drive gear with 2 screwdrivers and make sure it rotates smoothly.

NOTE: Be careful not to damage the oil seal lip.

2. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY





(a) Push the driven gear to one side of the body.
(b) Using a feeler gauge, measure the clearance.
Standard body clearance:
0.10 - 0.17 mm (0.0039 - 0.0067 in.)
Side clearance:
0.02 - 0.05 mm (0.001 - 0.02 in.)
Maximum body clearance:
0.17 mm (0.0067 in.)
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.





(c) Using a feeler gauge measure the tip clearance between the driven gear teeth and drive gear teeth.
Standard tip clearance:
0.07 - 0.15 mm (0.0028 - 0.0059 in.)
Maximum tip clearance
0.15 mm (0.0059 in.)
If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.





(d) Using a straight edge and feeler gauge, measure the side clearance of both gears.
Standard side clearance:
0.02 - 0.05 mm (0.0008 - 0.0020 in.)
Maximum side clearance
0.05 mm (0.0020 in.)









3. INSPECT FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY





(a) Using a dial indicator, measure the inside diameter of the oil pump body bushing.
Standard inside diameter:
38.113 - 38.138 mm (1.50051 - 1.50149 in.)
Maximum inside diameter
38.138 mm (1.50149 in.)
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.
4. INSPECT STATOR SHAFT ASSEMBLY





(a) Using a dial indicator, measure the inside diameter of the stator shaft.
Standard inside diameter:
21.500 - 21.526 mm (0.84646 - 0.84748 in.)
Maximum inside diameter
21.526 mm (0.84748 in.)
If the indicator diameter is greater than maximum, replace the stator shaft.