Tacoma PreRunner L4-2.7L (2TR-FE) (2005)
1. REMOVE OIL PUMP RELIEF VALVE
a. Using a 27 mm socket wrench, remove the relief valve plug and gasket.
b. Remove the valve spring and oil pump relief valve.
2. REMOVE OIL PUMP COVER
a. Remove the 7 bolts and oil pump cover.
3. REMOVE OIL PUMP ROTOR SET
a. Remove the oil pump rotor set from the timing chain cover.
4. INSPECT OIL PUMP RELIEF VALVE
a. Coat the relief valve with engine oil and drop it into the relief valve hole.
b. Check that the relief valve falls in smoothly by its own weight.
If it does not, replace the relief valve. If necessary, replace the timing chain cover.
5. INSPECT OIL PUMP ROTOR SET
a. Install the rotors to the timing chain cover with the rotors' marks facing outward. Check that the rotors revolves smoothly.
6. INSPECT ROTOR TIP CLEARANCE
a. Check the tip clearance.
(1) Using a feeler gauge, measure the clearance between the drive and driven rotor tips, as shown in the illustration.