Toyota Corolla (E120): Overhaul

1. Remove oil pump relief valve

  1. Remove the oil pump relief valve plug, oil pump relief valve spring and oil pump relief valve.
  1.  Oil pump relief valve plug
  2.  oil pump relief valve spring
  3.  oil pump relief valve

2. Inspect oil pump assy

  1. Remove 3 screws and oil pump cover.

  1. Inspect the oil pump relief valve.
  1.  Coat the valve with engine oil and check that it falls smoothly into the valve hole by it own weight.
  1.  inspect the oil pump rotor sub–assembly.
  1. Coat the oil pump gear set with engine oil and place them into the oil pump body. Check that the rotors revolves smoothly.

  1.  inspect rotor tip clearance.
  1. Using a feeler gauge, measure the clearance between the drive and driven rotor tips.

    Standard tip clearance: 0.040 – 0.160 Mm (0.0016 – 0.0063 In.)

  1. Inspect body clearance.
  1. Using a feeler gauge, measure the clearance between the driven rotor and body.

    Standard body clearance: 0.260 – 0.325 Mm (0.0102 – 0.0128 In.)

  1. Inspect rotor side clearance.
  1.  Using a feeler gauge and precision straight edge, measure the clearance between the rotors and precision straight edge.

    Standard side clearance: 0.025 – 0.071 Mm (0.0010 – 0.0028 In.)

  1. Install oil pump rotor sub–assembly.
  1.  Coat the oil pump gear set with engine oil and place it into pump body with the marks facing the pump body cover side.

  1. Install oil pump rotor sub–assembly.

    (1) Coat the oil pump gear set with engine oil and place it into pump body with the marks facing the pump body cover side.

3. Install oil pump relief valve

  1. Install the oil pump relief valve plug, oil pump relief valve spring and oil pump relief valve.

    Torque: 37 nvm (375 Kgf·cm, 27 ft·lbf)

  1.  oil pump relief valve plug
  2.  oil pump relief valve spring
  3.  oil pump relief valve
    Share this page:

    Other materials:

    Basic repair hint
    (A) hints on operations 1 Looks Always wear a clean uniform. Hat and safety shoes must be worn. 2 Vehicle protection Set a grill cover, fender cover, seat cover and floor mat before starting the operation. 3 Safe ...

    Seat heaters
    Press the switch. 1 High temperature 2 Low temperature The indicator light comes on when the switch is on. ■The seat heaters can be used when ► Vehicles without a smart key system The engine switch is in the “ON” position. ►Vehicles with a smart key system The engine ...

    Dtc check/clear
    1. Dtc check (normal mode) Notice: hand–held tester only: when the diagnostic system is switched from the normal mode to the check mode, all the dtcs and freeze frame data recorded in the normal mode will be erased. So before switching modes, always check the dtcs and freeze frame data, and ...