INSPECT OIL PUMP ASSEMBLY
Turn the drive gear with 2 screwdrivers and make sure 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 (0.0039 to 0.0067 in.) |
| Maximum body clearance |
|---|
| 0.17 mm (0.0067 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 (0.0028 to 0.0059 in.) |
| Maximum tip clearance |
|---|
| 0.15 mm (0.0059 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 (0.0008 to 0.0020 in.) |
| Maximum side clearance |
|---|
| 0.05 mm (0.0020 in.) |
| Standard Drive Gear Thickness | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Standard Driven Gear Thickness | ||||||||||||
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If the side clearance is greater than the maximum, replace the oil pump body.
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 (1.5005 to 1.5015 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 (0.8465 to 0.8475 in.) |
| Maximum inside diameter |
|---|
| 21.57 mm (0.8492 in.) |
If the inside diameter is greater than the maximum, replace the stator shaft assembly.