Oil Pump: Service and Repair

Oil Pump Overhaul

Oil Pump:

Exploded View

Special Tools Required
Oil seal driver, 64 mm 070AD-RCA0100

Removal
1. Drain the engine oil.
2. Turn the crankshaft so that the No. 1 piston is at top dead center (TDC).
3. Remove the timing belt.
4. Remove the idler pulley.
5. Remove the crankshaft position (CKP) sensor.
6. Remove the oil filter base/oil filter assembly.
7. Remove the oil pan.





8. Remove the oil screen (A).
9. 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 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 crankshaft oil seal from the oil pump.





2. Gently tap in the new crankshaft oil seal until the oil seal driver bottoms on the pump.
3. Remove all of the old liquid gasket from the oil pump mating surfaces, bolts, and bolt holes.
4. Clean and dry the oil pump mating surfaces.
5. Remove all of the old liquid gasket from the oil pump mating surfaces, bolts, and bolt holes.
6. Clean and dry the oil pump mating surfaces.





7. Apply liquid gasket, P/N 08717-0004, 08718-0001, 08718-0003, or 08718-0009, evenly to the engine block mating surface of the oil pump.

NOTE: Do not install the parts if 4 minutes or more have elapsed since applying liquid gasket. Instead, reapply liquid gasket after removing the old residue.





8. Grease the lip of the oil seal, and apply oil to the new O-rings (A).
9. Install the dowel pins (B), then align the inner rotor with the crankshaft, and install the oil pump (C).
10. Clean the excess grease off the crankshaft, and check the seal for distortion.
11. Install the oil screen (D).
12. Install the oil pan.
13. Install the oil filter base/oil filter assembly, with a new O-ring.
14. Install the CKP sensor.
15. Install the idler pulley.
16. Install the timing belt.