Oil Pump: Service and Repair

Engine Oil Pump Overhaul

Exploded View





Special Tools Required

- Oil Seal Driver, 64 mm 07OAD-RCAA100

Removal

1. Drain the engine oil Service and Repair.

2. Remove the timing belt:

- J35A6 engine Timing Belt Removal (J35A6)
- '07 model J35A7 engine
- '08-10 models J35A7 engine Timing Belt Removal (J35A7)

3. Remove the timing belt drive pulley from the crankshaft:

- J35A6 engine Timing Belt Drive Pulley Replacement (J35A6)
- '07 model J35A7 engine
- '08-10 models J35A7 engine Timing Belt Drive Pulley Replacement (J35A7)

4. Attach the chain hoist to the engine hook on the power steering pump bracket Engine Removal.

5. Remove the rocker arm oil control solenoid/oil filter assembly (J35A6 engine) Crankshaft and Piston Removal or oil filter base/oil filter assembly (J35A7 engine) Crankshaft and Piston Removal.

6. Remove the oil pan Engine Oil Pan Removal.

7. Remove the oil strainer (A).





8. Remove the mounting bolts, then remove the oil pump assembly (B).

Inspection

1. Remove the screws from the pump housing, then separate the pump housing and the cover.

2. Check the inner-to-outer rotor radial clearance between the inner rotor (A) and the outer rotor (B). If the inner-to-outer rotor clearance exceeds the service limit, replace the oil pump assembly.

Inner Rotor-to-Outer Rotor Radial Clearance










3. Check the pump housing-to-rotor axial clearance between the rotors (A) and the pump housing (B). If the pump housing-to-rotor axial clearance exceeds the service limit, replace the oil pump assembly.

Pump Housing-to-Rotor Axial Clearance










4. Check the pump housing-to-outer rotor radial clearance between the outer rotor (A) and the pump housing (B). If the pump housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly.

Pump Housing-to-Outer Rotor Radial Clearance









5. Inspect both rotors and the pump housing for scoring or other damage. Replace the parts, if necessary.

6. Apply liquid thread lock to the pump housing screws, then install the oil pump cover.

7. Check that the oil pump turns freely.

Installation

1. Remove the old oil seal from the oil pump.

2. Clean and dry the crankshaft oil seal housing.

3. Using the oil seal driver, 64 mm, drive in the new crankshaft oil seal until the oil seal driver bottoms on the pump.





4. Remove all of the old liquid gasket from the oil pump mating surfaces, the bolts, and the bolt holes.

5. Clean and dry the oil pump mating surfaces.

6. Apply liquid gasket (P/N 08717-0004, 08718-0003, or 08718-0009) to the engine block mating surface of the oil pump and to the inside edge of the threaded bolt holes. Install the component within 5 minutes of applying the liquid gasket.

NOTE:

- Apply a 2.5 mm (0.098 in) diameter bead of liquid gasket along the broken line (A).
- If you apply liquid gasket P/N 08718-0012, the component must be installed within 4 minutes.
- If too much time has passed after applying the liquid gasket, remove the old liquid gasket and residue, then reapply the new liquid gasket.





7. Apply a light coat of new engine oil to the lip of the crankshaft oil seal, and apply new engine oil to the new O-ring (A).





8. Install the dowel pins (B), then align the inner rotor with the crankshaft, and install the oil pump (C).

NOTE:

- Wait at least 30 minutes before filling the engine with oil.
- Do not run the engine for at least 3 hours after installing the oil pump.

9. Clean the excess grease off the crankshaft, and check the seal for distortion.

10. Install the oil strainer (D) with a new O-ring (E).

11. Install the oil pan Engine Oil Pan Installation.

12. Install the rocker arm oil control solenoid/oil filter assembly, with a new rocker arm oil control solenoid filter (J35A6 engine) Crankshaft and Piston Installation, or oil filter base/oil filter assembly, with a new O-ring (J35A7 engine) Crankshaft and Piston Installation.

13. Install the timing belt drive pulley to the crankshaft:

- J35A6 engine Timing Belt Drive Pulley Replacement (J35A6)
- '07 model J35A7 engine
- '08-10 models J35A7 engine Timing Belt Drive Pulley Replacement (J35A7)

14. Install the timing belt:

- J35A6 engine Timing Belt Installation (J35A6)
- '07 model J35A7 engine
- '08-10 models J35A7 engine Timing Belt Installation (J35A7)

15. Remove the chain hoist.