Oil Pump: Service and Repair

Engine Oil Pump Overhaul

Exploded View





Special Tools Required

- Support Eyelet 07AAK-SNAA600
- Engine Support Hanger, A and Reds AAR-T1256
*: Available through the Honda Tool and Equipment Program 888-424-6857

Removal

1. Open the hood, and secure it with the hood support rod (A) in the wide-open position (B).






2. Drain the engine oil Service and Repair.

3. Remove the under-cowl panel Service and Repair.

4. Support the engine with a jack and a wood block under the oil pan.

5. Remove the cam chain Cam Chain Removal.

6. Remove the alternator mounting bolt, then install the support eyelet.






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

NOTE: Be careful when working around the windshield.






8. Remove the jack and the wood block from under the oil pan.

9. Remove the oil pan Engine Oil Pan Removal.

10. Remove the oil screen (A), then remove the oil pump (B).






Inspection

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

1. Remove the screws from the pump housing, then separate the pump housing and the oil pump 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 oil pump assembly, if necessary.

6. Check that the oil pump turns freely.

Installation

1. Clean the O-ring groove and the mating surface of the engine block.

2. Install the oil pump (A) with a new O-ring (B).





3. Install the oil screen (C) with a new gasket (D).

4. Install the oil pan Engine Oil Pan Installation.

5. Support the engine with a jack and a wood block under the oil pan.

6. Remove the engine support hanger and the support eyelet, then tighten the alternator mounting bolt.






7. Install the cam chain Cam Chain Installation.

8. Remove the jack and the wood block from under the oil pan.

9. Install the under-cowl panel Service and Repair.

10. Refill the engine with engine oil.