Oil Pump

U151E AUTOMATIC TRANSAXLE: OIL PUMP: INSPECTION

1. INSPECT OIL PUMP ASSEMBLY

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





NOTICE:
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 to 0.17 mm (0.0039 to 0.0067 in.)

Maximum body clearance:

0.17 mm (0.0067 in.)

(c) If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.

(d) Using a feeler gauge, measure the tip clearance between the driven gear teeth and drive gear teeth.





Standard tip clearance:

0.07 to 0.15 mm (0.0028 to 0.0059 in.)

Maximum tip clearance
0.15 mm (0.0059 in.)

(e) If the tip clearance is greater than the maximum, replace the oil pump body sub-assembly.

(f) Using a straightedge 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
0.05 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 to 38.138 mm (1.5005 to 1.5015 in.)

Maximum inside diameter
38.188 mm (1.5035 in.)

(b) 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 to 21.526 mm (0.8465 to 0.8475 in.)

Maximum inside diameter
21.57 mm (0.8492 in.)

(b) If the inside diameter is greater than the maximum, replace the stator shaft.