Oil Pump: Service and Repair

Engine Oil Pump Overhaul

Exploded View





Special Tools Required

- Oil Seal Driver, 64 mm 07OAD-RCAA100
- Engine Support Hanger, A and Reds AAR-T1256
- Engine Hanger Adapter Set VSB02C000031
*: Available through the Acura Tool and Equipment program, 888-424-6857.

NOTE: Refer to the Exploded View if needed during this procedure.

Removal

1. Remove the bulkhead cover Front Bulkhead Cover Replacement.

2. Remove the drive belt Service and Repair.

3. Remove the power steering pump and the power steering line bracket Removal and Replacement.

4. Remove the service caps (A) for the front damper flange nuts from the cowl cover (B). Position the engine hanger adapter set (VSB02C000031) with the FRONT mark facing forward over the damper flange nuts.






5. Install the engine support hanger (AAR-T1256) onto the vehicle as shown, and attach the hook (A) to the engine hanger (B). Tighten the wing nut (C) by hand, and lift and support the engine/transmission.





6. Remove the timing belt Timing Belt Removal.

7. Remove the timing belt drive pulley from the crankshaft Service and Repair.

8. Remove the rocker arm oil control solenoid/oil filter assembly.

9. Remove the oil pan Engine Oil Pan Removal.

10. Remove the oil strainer (A).





11. 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 rotor-to-outer rotor radial clearance between the inner rotor (A) and the outer rotor (B). If the inner rotor-to-outer rotor radial 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, driver in the new crankshaft oil seal (A) until the oil seal driver bottoms on the pump.





4. Clean the excess grease off the oil pump, and check that the oil seal lip is not distorted.

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

6. Clean and dry the oil pump mating surfaces.

7. Apply liquid gasket (P/N 08717-0004, 08718-0003, 08718-0004, 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 2.3 mm (0.091 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 new liquid gasket.





8. 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).





9. 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.

10. Clean the excess grease off the crankshaft, and check that the oil seal lip is not distorted.

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

12. Install the oil pan Engine Oil Pan Installation.

13. Install the rocker arm oil control solenoid/oil filter assembly with a new rocker arm oil control solenoid filter.

14. Install the timing belt drive pulley to the crankshaft Service and Repair.

15. Install the timing belt Timing Belt Installation.

16. Remove the engine support hanger, and the engine hanger adapter set.

17. Install the service caps on the cowl cover.

18. Install the power steering pump and the power steering line bracket Removal and Replacement.

19. Install the drive belt Service and Repair.

20. Install the bulkhead cover Front Bulkhead Cover Replacement.

21. After assembly, wait at least 30 minutes before filling the engine with oil.