INSPECT OIL PUMP ASSEMBLY
Turn the drive gear using 2 screwdrivers and make sure that it rotates smoothly.
Note
Be careful not to damage the oil seal lip.
INSPECT CLEARANCE OF OIL PUMP ASSEMBLY
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 (0.00394 to 0.00669 in.) |
| Maximum body clearance |
|---|
| 0.17 mm (0.00669 in.) |
If the body clearance is greater than the maximum, replace the oil pump body.
Measure the tip clearance between the driven gear teeth and drive gear teeth.
| Standard tip clearance |
|---|
| 0.07 to 0.15 mm (0.00276 to 0.00591 in.) |
| Maximum tip clearance |
|---|
| 0.15 mm (0.00591 in.) |
If the tip clearance is greater than the maximum, replace the oil pump body.
Using a straightedge and feeler gauge, measure the side clearance of both gears.
| Standard side clearance |
|---|
| 0.02 to 0.05 mm (0.000787 to 0.00197 in.) |
| Maximum side clearance |
|---|
| 0.05 mm (0.00197 in.) |
| Standard Drive Gear Thickness | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Standard Driven Gear Thickness | ||||||||||||
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INSPECT FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY
Using a caliper gauge, measure the inside diameter of the oil pump body bush.
| Standard inside diameter |
|---|
| 38.11 to 38.14 mm (1.50039 to 1.50157 in.) |
| Maximum inside diameter |
|---|
| 38.19 mm (1.5035 in.) |
If the inside diameter is greater than the maximum, replace the oil pump body.
INSPECT STATOR SHAFT ASSEMBLY
Using a caliper gauge, measure the inside diameter of the stator shaft bushes.
| Standard inside diameter |
|---|
| 20.50 to 21.53 mm (0.8071 to 0.8476 in.) |
| Maximum inside diameter |
|---|
| 21.57 mm (0.8492 in.) |
If the inside diameter is greater than the maximum, replace the stator shaft assembly.