Oil Pump: Service and Repair

Oil Pump Overhaul

Special Tools Required
^ Oil seal driver, 64 mm 070AD-RCA0100
^ Engine support hanger, A and Reds AAR-T-12566 (available through Honda Tool and Equipment program, 888-424-6857)
^ Engine hanger balance bar VSB02000019

Removal
1. Drain the engine oil.
2. Remove the timing belt.
3. Remove the crankshaft position (CKP) sensor.
4. Remove the left side, left rear, and right rear engine compartment covers. Remove the intake manifold front bulkhead covers.
5. Remove the strut brace.
6. Lift and support the engine with the special tools.
7. Remove the VTEC solenoid valve and oil filter assembly.
8. Remove the oil pan.





9. Remove the oil screen (A).
10. Remove the mounting bolts and the oil pump assembly (B).

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





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





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





4. Check the housing-to-outer rotor radial clearance between the outer rotor (A) and pump housing (B). If the housing-to-outer rotor radial clearance exceeds the service limit, replace the oil pump assembly.
5. Inspect both rotors and 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. Gently tap in the new oil seal until the special tool bottoms on the pump.
3. Remove any old liquid gasket from the oil pump mating surfaces, bolts, and bolt holes.
4. Clean and dry the oil pump mating surfaces.





5. Install the oil pump (A).
6. Install the oil screen (D).
7. Install the oil pan.
8. Install the VTEC solenoid valve and oil filter assembly.
9. Install the CKP sensor.
10. Install the idler pulley.
11. Install the timing belt.
12. Remove the engine balance bar and hanger.
13. Install the strut brace.
14. Install the engine compartment covers, the intake manifold cover, and the bulkhead cover.
15. After assembly, wait at least 30 minutes before filling the engine with oil.