Overhaul

OIL PUMP

COMPONENTS (Part 1):

COMPONENTS (Part 2):

COMPONENTS (Part 3):

COMPONENTS (Part 4):

COMPONENTS (Part 5):

COMPONENTS (Part 6):

DISASSEMBLY

1. REMOVE OIL PUMP STRAINER SET
(a) Remove the 2 nuts, oil pump strainer and gasket.

2. REMOVE OIL PUMP RELIEF VALVE
(a) Using a 27 mm socket wrench, remove the plug.
(b) Remove the valve spring and relief valve.

3. REMOVE OIL PUMP COVER
(a) Remove the 5 bolts and oil pump cover.

INSPECTION

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

2. INSPECT OIL PUMP ROTOR
(a) Check the side clearance.
(1) Using a feeler gauge and precision straightedge, measure the clearance between the rotors and precision straightedge.
Standard clearance: 0.100 to 0.170 mm (0.0039 to 0.0067 in.)
Maximum clearance: 0.325 mm (0.0128 in.)
If the side clearance is greater than the maximum, replace the oil pump assembly.

(b) Check the tip clearance.
(1) Using a feeler gauge, measure the clearance between the drive and driven rotor tips.
Standard clearance: 0.080 to 0.160 mm (0.0031 to 0.0063 in.)
Maximum clearance: 0.35 mm (0.0138 in.)
If the tip clearance is greater than the maximum, replace the oil pump assembly.

(c) Check the body clearance.
(1) Using a feeler gauge, measure the clearance between the driven rotor and pump body.
Standard clearance: 0.100 to 0.170 mm (0.0039 to 0.0067 in.)
Maximum clearance: 0.325 mm (0.01128 in.)
If the body clearance is greater than the maximum, replace the oil pump assembly.

REASSEMBLY
1. INSTALL OIL PUMP ROTOR
(a) Remove the oil pump rotor.
(b) Coat the drive rotor and driven rotor with engine oil.

2. INSTALL OIL PUMP COVER
(a) Install the oil pump cover with the 5 bolts.
Torque: 8.8 N*m (90 kgf*cm, 78 in.*lbf)

3. INSTALL OIL PUMP RELIEF VALVE
(a) Coat the relief valve with engine oil.
(b) Insert the relief valve and spring into the pump body hole.
(c) Using a 27 mm socket wrench, install the plug.
Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf)

4. INSTALL OIL PUMP STRAINER SET
(a) Install a new gasket and the oil strainer with the 2 nuts.
Torque: 8.8 N*m (90 kgf*cm, 78 in.*lbf)