Oil Pump: Inspection
- INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
- Using a dial indicator, measure the inside diameter of the oil pump body bushing.
Maximum inside diameter:
38.138 mm (1.5015 in.)
If the inside diameter is greater than the maximum inside diameter, replace the oil pump body.
- Using a dial indicator, measure the inside diameter of the oil pump body bushing.
- INSPECT STATOR SHAFT ASSEMBLY
- Using a dial indicator, measure the inside diameter of the stator shaft bushing.
Maximum inside diameter:
Front side:
21.527 mm (0.8475 in.)
Rear side:
32.03 mm (1.261 in.)
If the inside diameter is greater than the maximum inside diameter, replace the stator shaft.
- Using a dial indicator, measure the inside diameter of the stator shaft bushing.
- 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.)
If the body clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.
- Using a feeler gauge, measure the clearance between the driven gear teeth and the drive gear teeth.
Standard tip clearance:
0.070 to 0.150 mm (0.0028 to 0.0059 in.)
If the tip clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.
- Using a steel straight edge and a feeler gauge, measure the side clearance of both gears.
Standard side clearance:
0.03 to 0.05 mm (0.0012 to 0.002 in.)
- There are 7 different thicknesses for the drive and driven gears.
Drive and driven gears thickness
DRIVE AND DRIVEN GEARS THICKNESS SPECIFICATIONSMark Thickness 0 10.736 to 10.742 mm (0.42268 to 0.42291 in.) 1 10.743 to 10.749 mm (0.42296 to 0.42319 in.) 2 10.750 to 10.756 mm (0.42323 to 0.42346 in.) 3 10.757 to 10.763 mm (0.42350 to 0.42374 in.) 4 10.764 to 10.770 mm (0.42378 to 0.42401 in.) 5 10.771 to 10.777 mm (0.42405 to 0.42429 in.) 6 10.778 to 10.784 mm (0.42433 to 0.42457 in.) If the side clearance is greater than the standard thickness, check the drive gear, the driven gear and the pump body.
- INSPECT OIL PUMP DRIVE GEAR ROTATION
- Make sure that the drive gear rotates smoothly.
- Remove the oil pump assembly from the torque converter.