Oil Pump Assembly

REMOVE OR DISCONNECT
1. Oil pump seal from oil pump body.
2. Oil pump thrust washer and bearing from rear of oil pump cover.





3. Two seal rings from oil pump cover.





4. Six bolts and oil pump body from oil pump cover.
- Input shaft oil seal from oil pump body.

CLEAN
All oil pump components and dry thoroughly.

INSPECT
1. Oil pump drive gear and driven gear for excessive wear or damage. Replace as necessary.
2. Oil pump cover for excessive wear or damage. Replace as necessary.
3. Oil pump body and stator oil pump cover mating surfaces for distortion or warp. Replace oil pump assembly as necessary.

MEASURE

^ Tool Required:
- J 34673 Flat Gage Bar





1. Oil pump body-to-driven gear clearance using a feeler gage. Push the oil pump driven gear to one side of the oil pump body and MEASURE the gap on the opposite side. Standard oil pump body-to-driven gear clearance should fall within 0.07 to 0.15 mm (0.0028 to 0.0059-inch). If oil pump body-to-driven gear clearance exceeds 0.30 mm (0.118-inch), replace the oil pump assembly.





2. Oil pump drive gear tip clearance using a feeler gage. Measure the gap between the oil pump drive gear teeth and the oil pump gear crescent. Standard oil pump drive gear tip clearance should fall within 0.11 to 0.14 mm (0.0044 to 0.0055 inch). If oil pump drive gear tip clearance exceeds 0.30 mm (0.011181-inch), replace the oil pump assembly.





3. Oil pump drive gear and driven gear side clearance using a J 34673 and a feeler gage. Place the J 34673 across the oil pump body and measure the clearance between the oil pump drive gear and driven gear and the oil pump body mating surface. Standard drive gear and driven gear side clearance should fall within 0.02 to 0.05 mm (0.0008 to 0.0019-inch).
If drive gear and driven gear side clearance exceeds 0.1 mm (0.0039-inch), replace the oil pump body.

Important
- The oil pump drive gear and driven gear are different sizes. If the thicker of the two gears is not within standard drive gear and driven gear side clearance, replace the oil pump body.

INSTALL OR CONNECT

^ Tools Required:
- J 9617 Pump Seal Installer
- J 36850 Transjel Transmission Assembly Lubricant

1. New input shaft oil seal into oil pump body using a J 9617 and a hammer.
2. Apply J 36850 to the new input shaft oil seal lip.





3. Oil pump cover onto oil pump body; secure with six bolts.

Tighten
- Oil pump cover-to-oil pump body bolts to 9 N.m (80 lb. in.).

4. Apply J 36850 to the oil pump thrust washer and bearing to hold it on the rear of the oil pump cover.
5. Oil pump thrust washer and bearing onto rear of oil pump cover.
6. Two new seal rings onto oil pump cover.
7. New oil pump seal onto fluid pump body.





INSPECT
- Oil pump drive gear for smooth rotation by carefully inserting two small drift punches into the oil pump body and turning the fluid pump drive gear. If oil pump drive gear does not rotate smoothly, oil pump disassembly and inspection is indicated.