Oil Pump

U241E AUTOMATIC TRANSAXLE: OIL PUMP: INSPECTION

1. INSPECT OIL PUMP ASSEMBLY

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

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

(c) 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.)

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

(e) 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.)

Standard drive gear thickness:






Standard driven gear thickness






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

(a) Using a caliper gauge, measure the inside diameter of the oil pump body bush.





Standard inside diameter:

38.11 to 38.14 mm (1.5005 to 1.5015 in.)

Maximum inside diameter:

38.19 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 caliper gauge, measure the inside diameter of the stator shaft bushes.





Standard inside diameter:

20.50 to 21.53 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 assembly.