Oil Pump: Service and Repair

Oil Pump Overhaul

Oil Pump:

Special Tools Required
^ Oil seal driver, 64 mm 070AD-RCAA100
^ Engine support hanger, A and Reds AAR-T-12566
^ Engine hanger balance bar VSB02C000019 These special tools are available through Acura Tool and Equipment Program, 1-888-424-6857.

Removal
1. Drain the engine oil.
2. Remove the timing belt.
3. Remove the crankshaft position (CKP) sensor.
4. Remove the rocker arm oil control solenoid/oil filter assembly.
5. Remove the oil pan.
6. Remove the oil screen (A).





7. 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-router 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. Apply liquid gasket, P/N 8717-0004, 8718-0001, 87180003, 08718-0009, evenly to the engine block mating surface of the oil pump. Install the component within 5 minutes of applying the liquid gasket.

NOTE:
^ If you apply liquid gasket P/N 8718-0012, 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.





6. Grease the lip of the oil seal, and apply new engine oil to the new O-ring (A).





7. Install the dowel pins (B), then align the inner rotor with the crankshaft, and install the oil pump (C).
8. Clean the excess grease off the crankshaft, and check the seal for distortion.
9. Install the oil screen (D) with new O-ring (E).
10. Install the oil pan.
11. Install the rocker arm oil control solenoid/oil filter assembly, with a new rocker arm oil control solenoid filter.
12. Install the CKP sensor.
13. Install the timing belt.
14. After assembly, wait at least 30 minutes before filling the engine with oil.