Oil Pump Service/Inspection

REMOVAL

NOTE: When repairing the oil pump, the oil pan and strainer should be removed and cleaned.

1. REMOVE HOOD
2. RAISE VEHICLE

CAUTION: Be sure the vehicle is securely supported.

3. REMOVE ENGINE UNDER COVERS
4. DRAIN ENGINE OIL
5. DISCONNECT EXHAUST PIPE

6. REMOVE SUSPENSION LOWER CROSSMEMBER

7. REMOVE ENGINE MOUNTING CENTER MEMBER
8. REMOVE STIFFENER PLATE

9. REMOVE OIL PAN

(a) Remove the dipstick.
(b) Remove the seventeen bolts and two nuts.

(c) Insert the blade of SST between the cylinder block and oil pan, cut off applied sealer and remove the oil pan.

CAUTION:
- Do not use SST for the oil pump body side and rear oW seal retainer.
- Be careful not to damage the oil pan flange.
10. REMOVE OIL STRAINER

Remove the two bolts, two nuts, oil strainer, baffle plate and gasket.

11. SUSPEND ENGINE WITH ENGINE HOIST CHAIN
12. REMOVE TIMING BELT AND PULLEYS
13. REMOVE OIL PUMP

(a) Remove the twelve bolts.

(b) Using a plastic-faced hammer, careful tap off the oil pump.

DISASSEMBLY
1. REMOVE RELIEF VALVE

(a) Using snap ring pliers, remove the snap ring.
(b) Remove the retainer, spring and relief valve.
2. REMOVE DRIVE AND DRIVEN ROTORS

Remove the two bolts, pump body cover, 0-ring, the drive and driven rotors.

INSPECTION
1. INSPECT RELIEF VALVE

Coat the valve with engine oil and check that it falls smooth 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 DRIVE AND DRIVEN ROTORS

A. Inspect rotor body clearance
Using a feeler gauge, measure the clearance between the driven rotor and body.
Standard body clearance: 0.10-0.16 mm (0.0039-0.0063 in.)
Maximum body clearance: 0.20 mm (0.0079 in.)
If the body clearance is greater than maximum, replace the rotor as a set. If necessary, replace the oil pump assembly.
B. Inspect rotor tip clearance

Using a feeler gauge, measure the clearance between the drive and driven rotors
Standard tip clearance: 0.04-0.16 mm (0.0016-0.0063 in.)
Maximum tip clearance: 0.20 mm (0.0079 in.)
If the tip clearance is greater than maximum, replace the rotors as a set. If necessary, replace the oil pump assembly.
1. REMOVE OIL SEAL

Using a screwdriver, pry out the oil seal.
2. INSTALL OIL SEAL

(a) Using SST and a hammer, tap in a new oil seal to a depth of approx. 1 mm (0.04 in.) from the oil pump cover edge.
(b) Apply MP grease to the oil seal lip.

ASSEMBLY OF OIL PUMP
1. INSTALL DRIVE AND DRIVEN ROTORS

(a) Place a new 0-ring into the pump body groove.
(b) Place the drive and driven rotors into pump body.

(a) Insert the relief valve, spring and retainer into the pump body hole.
(b) Using snap ring pliers, install the snap ring.

INSTALLATION
1. INSTALL OIL PUMP

Install a new gasket and the oil pump with the twelve bolts.
Torque: 95 kg-cm (82 in.lb, 9.3 Nm)
2. INSTALL PULLEYS AND TIMING BELT
3. REMOVE ENGINE HOIST CHAIN FROM ENGINE
4. INSTALL OIL STRAINER

Install a new gasket, the baffle plate and oil pan with the two bolts and two nuts.
Torque: 55 kg-cm (48 in. lb, 5.4 Nm)
5. INSTALL OIL PAN

(a) Remove any old packing (FIPG) material and be careful not to drop any oil on the contact surfaces of the oil pan and cylinder block.
- Using a razor blade and gasket scraper, remove the old packing (FIPG) material from the gasket surfaces and sealing groove.
- Thoroughly clean all components to remove all the loose material.
- Using a non-residue solvent, clean both sealing surfaces.

CAUTION: Do not use a solvent which will affect the painted surfaces.

(b) Apply seal packing to the oil pan as shown in the figure.
- Install a nozzle that has been cut to a 5 mm (0.20 in.) opening.

NOTE: Avoid applying an excess amount to the surface. Be particularly careful near oil passages.

- Parts must be assembled within 3 minutes of application. Otherwise the material must be removed and reapplied.
- Immediately remove nozzle from the tube and and reinstall cap.

(C) Install the oil pan with the seventeen bolts and two nuts.
Torque: 55 kg-cm (48 in. lb, 5.4 Nm)
(d) Install the dipstick.
6. INSTALL STIFFENER PLATE

Torque: 380 kg-cm (27 ft-lb, 37 Nm)
7. INSTALL ENGINE MOUNTING CENTER MEMBER

Torque: 400 kg-cm (29 ft-lb, 39 Nm)
8. INSTALL SUSPENSION LOWER CROSSMEMBER

Torque:
14 mm bolt head 400 kg-cm (32 ft-lb, 43 Nm)
19 mm bolt head 2,120kg-cm (153 ft-lb, 208 Nm)
9. CONNECT EXHAUST PIPE
10. INSTALL ENGINE UNDER COVERS
11. LOWER VEHICLE
12. FILL WITH ENGINE OIL
13. START ENGINE AND CHECK FOR LEAKS
14. RECHECK ENGINE OIL LEVEL
15. INSTALL HOOD
16. CHECK TOE-IN