9 - 222
ENGINE 2.7L DOHC
OIL PUMP (Continued)
Fig. 98 Crankshaft Positioned At 60 DEGREES
ATDC No.1 Cylinder
1 - CRANKSHAFT POSITION = 60° ATDC NO. 1 CYLINDER
Fig. 99 Oil Pump and Pick-up Tube
1 - BOLTS
2 - O-RING
3 - PICK-UP TUBE
4 - BOLT
5 - OIL PUMP
DISASSEMBLY
(1) Remove the pressure relief valve by remove the
threaded retaining cap from the oil pump housing.
CAUTION: Oil pump pressure relief valve must be
installed as shown in (Fig. 100) or engine damage
may occur.
(2) Remove spring and relief valve.
Fig. 100 Oil Pressure Relief Valve
1 - RELIEF VALVE
2 - SPRING
3 - RETAINER CAP
(3) Remove oil pump cover screws and lift off cover
plate (Fig. 101).
(4) Remove pump rotors.
(5) Wash all parts in a suitable solvent.
(6) Inspect components carefully for damage or
wear. (Refer to 9 - ENGINE/LUBRICATION/OIL
PUMP - INSPECTION)
CLEANING
(1) Clean all parts thoroughly in a suitable sol-
vent.
INSPECTION
(1) Disassemble the oil pump. (Refer to 9 -
ENGINE/LUBRICATION/OIL PUMP - DISASSEM-
BLY)
(2) Clean all oil pump components. (Refer to 9 -
ENGINE/LUBRICATION/OIL PUMP - CLEANING)
(3) Inspect mating surface of the oil pump housing
and cover. Replace oil pump if deeply scratched or
grooved (minor surface scratches and polishing is
normal).
JR