Oil Pump

U760E AUTOMATIC TRANSMISSION / TRANSAXLE: OIL PUMP: INSPECTION

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

(a) Inspect the body clearance.

(1) Push the driven gear to one side of the body.





(2) Using a feeler gauge, measure the body clearance.

Standard clearance:

0.075 to 0.145 mm (0.00296 to 0.00570 in.)

Maximum clearance:

0.145 mm (0.00570 in.)

If the clearance is more than the maximum, replace the drive gear, driven gear or front oil pump and gear body sub-assembly.

(b) Inspect the side clearance.

(1) Using a straightedge and feeler gauge, measure the side clearance of both gears.





Standard side clearance:

0.025 to 0.040 mm (0.000985 to 0.00157 in.)

Maximum side clearance:

0.04 mm (0.00157 in.)

If the clearance is more than the maximum, replace the drive gear, driven gear or front oil pump and gear body sub-assembly.

HINT
There are 5 different thicknesses for the drive and driven gears.

Drive Gear Thickness





Driven Gear Thickness





3. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY

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





Standard inside diameter:

43.135 to 43.160 mm (1.6983 to 1.6992 in.)

Maximum inside diameter:

43.160 mm (1.6992 in.)

If the inside diameter is more than the maximum, replace the front oil pump and gear body sub-assembly.

4. INSPECT STATOR SHAFT ASSEMBLY

(a) Using a caliper gauge, measure the inside diameter of the stator shaft bushing.





Standard inside diameter:

22.500 to 22.526 mm (0.88583 to 0.88684 in.)

Maximum inside diameter:

22.570 mm (0.88858 in.)

If the inside diameter is more than the maximum, replace the stator shaft assembly.