Oil Pump

A246E AUTOMATIC TRANSAXLE: OIL PUMP:

INSPECTION

1. INSPECT OIL PUMP ASSEMBLY





(a) Inspect body clearance
(1) Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.
Standard body clearance:
0.075 to 0.150 mm (0.00295 to 0.00591 in.)
Maximum body clearance:
0.3 mm (0.012 in.)
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.





(b) Inspect tip clearance
(1) Measure the tip clearance between the driven gear teeth and crescent-shaped part of the pump body.
Standard tip clearance:
0.004 to 0.248 mm (0.00016 to 0.00976 in.)
Maximum tip clearance:
0.3 mm (0.012 in.)
If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.





(c) Inspect side clearance
(1) Using a steel straight edge and feeler gauge, measure the side clearance of both gears.
Standard side clearance:
0.02 to 0.05 mm (0.0008 to 0.0020 in.)
Maximum side clearance:
0.1 mm (0.004 in.)
If the side clearance is greater than the maximum, replace the oil pump body sub-assembly.





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

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

2. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY





(a) Using a dial indicator, measure the inside diameter of the front oil pump body sub-assembly bushing.
Maximum inside diameter:
38.18 mm (1.5031 in.)
If the inside diameter is greater than the maximum, replace the front oil pump body sub-assembly.
3. INSPECT STATOR SHAFT ASSEMBLY





(a) Using a dial indicator, measure the inside diameter of the stator shaft assembly bushings.
Maximum inside diameter:
Front side
21.57 mm (0.8492 in.)
Rear side
27.07 mm (1.0657 in.)
If the inside diameter is greater than the maximum, replace the stator shaft assembly.