REMOVE AND CHECK OIL PUMP. (Refer to figure 17.)
Combination Wrench, 7 mm
Key, Socket Head Screw, 4 mm
Engine removed from engine module
Rule, Machinist's, 6 in.
Remove three socket head cap screws (1).
Use care when removing oil pump cover. The rotor's position in the oil pump cover are to be
Remove the oil pump cover (2) with inner rotor (3), outer rotor (4) and O-ring (5). Discard O-ring (5). Wipe rotors (3
and 4) and oil pump cover (2) clean.
Lay the oil pump cover (2) on a flat surface with the rotors (3 and 4) facing up. Measure the clearance (A) between the
outer rotor and the cover mating surface. The rotor must be 0.010-0.024 in. (0.27-0.60 mm) below the mating edge of
the oil pump cover. If measurement is out of tolerance, replace the rotor.
Remove rotors (3 and 4) from oil pump cover (2) and measure for wears. If any measurement is out of tolerance, replace
Measurement B (Inner Rotor Diameter): 1.167-1.172 in. (29.65-29.77 mm)
Measurement C (Outer Rotor Diameter): 1.592-1.597 in. (40.45-40.58 mm)
Measurement D (Outer Rotor Inside Diameter): 1.182-1.185 in. (30.03-30.1 mm)
Measurement E (Rotor Thickness - Both Rotors): 0.704-0.706 in. (17.89-17.94 mm)