OIL PUMP INSPECTION


  1. INSPECT OIL PUMP RELIEF VALVE


    1. A017E8V

      Coat the relief valve with engine oil and check that it falls smoothly into the valve hole by its own weight.

      If the valve does not fall smoothly, replace the relief valve. If necessary, replace the oil pump assembly.

  2. INSPECT OIL PUMP ROTOR SET


    1. A017G7QE01

      Install the rotors to the timing chain cover with the rotors' marks facing up. Check that the rotors rotate smoothly.

    2. A017DLN

      Check the tip clearance.


      1. Using a feeler gauge, measure the clearance between the drive and driven rotor tips, as shown in the illustration.

        Tip clearance
        Standard Maximum
        0.060 to 0.160 mm (0.0024 to 0.0063 in.) 0.160 mm (0.0063 in.)

        If the clearance is greater than the maximum, replace the drive and driven rotors.

    3. A017C6U

      Check the side clearance.


      1. Using a feeler gauge and precision straightedge, measure the clearance between the rotors and precision straightedge, as shown in the illustration.

        Side clearance
        Standard Maximum
        0.030 to 0.090 mm (0.0012 to 0.0035 in.) 0.090 mm (0.0035 in.)

        If the side clearance is greater than the maximum, replace the timing chain cover sub-assembly.

    4. A017C9R

      Check the body clearance.


      1. Using a feeler gauge, measure the clearance between the timing chain cover and driven rotor, as shown in the illustration.

        Body clearance
        Standard Maximum
        0.250 to 0.325 mm (0.0098 to 0.0128 in.) 0.325 mm (0.0128 in.)

        If the body clearance is greater than the maximum, replace the timing chain cover sub-assembly.