Oil Pump

Components and Component Location

COMPONENTS

Repair Procedures

Removal and Installation

1. 1
   Remove the timing chain cover. (Refer to Timing System - "Timing Chain Cover")
2. 2
   Remove the oil pump cover (A). Tightening torque Screw: 5.9 ~ 8.8 N·m Bolts: 8.8 ~ 13.7 N·m

   

3. 3
   Remove the inner rotor (A) and outer rotor (B).

   

4. 4
   To install, perform the removal procedure in reverse order.

Inspection

1. 1
   Remove the relief valve. Remove the cap (A), spring (B), and relief plunger (C). Tightening torque Plug (A): 39.2 ~ 49 N·m

   

2. 2
   Inspect the relief valve. Close the engine oil relief valve and make sure it drops smoothly into the valve hole under its own weight. If necessary, replace the timing chain cover.
3. 3
   Inspect the relief valve spring. Check that the relief valve spring is not bent or broken.
4. 4
   Inspect the rotor side clearance. Using a feeler gauge and a precision straightedge, measure the clearance between the inner rotors and the straightedge. If the side clearance exceeds the maximum limit, replace all rotors. If necessary, replace the timing chain cover.

   Side clearance: 0.040 ~ 0.090 mm (0.00157 ~ 0.00354 in)

   

5. 5
   Inspect the rotor clearance. Using a feeler gauge, measure the clearance between the outer rotor and the body. If the body clearance exceeds the specified limit, replace the rotor assembly. If necessary, replace the timing chain cover.

   Body clearance: 0.200 ~ 0.292 mm (0.00787 ~ 0.01150 in)

   

6. 6
   Check the rotor tip clearance.

   1. Measure the outer diameter of the inner rotor tip guide.

      Inner rotor diameter: 41.550 ~ 41.570 mm (1.63582 ~ 1.63661 in)

   2. Measure the inside diameter of the timing chain cover hole. Timing chain cover hole diameter: 41.600 ~ 41.625 mm (1.63779 ~ 1.63878 in)
   3. Check the clearance between the inside diameter of the timing chain cover hole and the outside diameter of the inner rotor guide.

      

   Guide clearance: 0.030 ~ 0.075 mm (0.00118 ~ 0.00295 in)