Overhaul

OIL PUMP

COMPONENTS (Part 1):

COMPONENTS (Part 2):

COMPONENTS (Part 3):

COMPONENTS (Part 4):

COMPONENTS (Part 5):

COMPONENTS (Part 6):

COMPONENTS (Part 7):

COMPONENTS (Part 8):

COMPONENTS (Part 9):

COMPONENTS (Part 10):

COMPONENTS (Part 11):

DISASSEMBLY





1. REMOVE OIL PUMP COVER
(a) Remove the 3 bolts, then remove the oil pipe.
(b) Remove the 2 O-rings.





(c) Remove the 7 bolts, then remove the oil pump cover, drive rotor and driven rotor.
2. REMOVE OIL PUMP RELIEF VALVE
(a) Remove the relief valve plug.
(b) Remove the relief valve spring and relief valve.

INSPECTION





1. INSPECT OIL PUMP RELIEF VALVE
(a) Coat the valve with engine oil, then check that it falls smoothly into the valve hole by its own weight. If not, replace the relief valve. If necessary, replace the oil pump assembly.





2. INSPECT OIL PUMP ROTOR SET
(a) Place the drive and driven rotors into the timing chain cover with the marks facing upward.





(b) Check the rotor tip clearance.
(1) Using a feeler gauge, measure the clearance between the drive and driven rotor tips.
Standard clearance: 0.06 to 0.16 mm (0.0024 to 0.0063 inch)
Maximum tip clearance: 0.16 mm (0.0063 inch)
If the clearance is greater than the maximum, replace the drive and driven rotors together.





(c) Check the rotor side clearance.
(1) Using a feeler gauge and precision straight edge, measure the clearance between the rotors and precision straight edge.
Standard clearance: 0.03 to 0.09 mm (0.0012 to 0.0035 inch)
Maximum side clearance: 0.09 mm (0.0035 inch)
If the clearance is greater than the maximum, replace the drive and driven rotors. If necessary, replace the timing chain cover assembly.





(d) Check the rotor body clearance.
(1) Using a feeler gauge, measure the clearance between the driven rotor and body.
Standard clearance: 0.250 to 0.325 mm (0.0098 to 0.0128 inch)
Maximum body clearance: 0.325 mm (0.0128 inch)
If the clearance is greater than the maximum, replace the drive and driven rotors. If necessary, replace the timing chain cover assembly.

REASSEMBLY
1. INSTALL OIL PUMP RELIEF VALVE
(a) Coat the relief valve with engine oil and insert the relief valve and spring into the valve hole.
(b) Install the relief valve plug.
Torque: 49 Nm (500 kgf-cm, 36 ft. lbs.)





2. INSTALL OIL PUMP COVER
(a) Apply fresh engine oil to the drive and driven rotors.
(b) Place the drive and driven rotors into the timing chain cover with the marks facing the oil pump cover side.





(c) Install the oil pump cover with the 7 bolts.
Torque: 9.0 Nm (92 kgf-cm, 80 inch lbs.)
(d) Install a new O-ring onto the oil pump cover.
(e) Install a new O-ring onto the oil pipe.





(f) Install the oil pipe with the 3 bolts.
Torque: 9.0 Nm (92 kgf-cm, 80 inch lbs.)