ASSEMBLY
(1) Assemble pump using new parts as required.
(2) Tighten cover screws to 12 N·m (105 in. lbs.)
(Fig. 97).
(3) Tighten oil pressure relief valve retaining cap
to 12 N·m (105 in. lbs.) (Fig. 96).
(4) Prime oil pump before installation by filling
rotor cavity with engine oil.
INSTALLATION
CAUTION: Crankshaft position must be at 60° ATDC
of No.1 cylinder before installing oil pump (Fig. 94).
This position will properly locate oil pump. If not
properly located, severe damage to oil pump can
occur.
(1) Prime oil pump before installation by filling
rotor cavity with engine oil.
(2) If crankshaft has been rotated, it must be repo-
sitioned to 60° ATDC of No.1 cylinder prior to oil
pump installation (Fig. 94).
(3) Install oil pump carefully over crankshaft and
into position.
(4) Install oil pump attaching bolts. Tighten bolts
to 28 N·m (250 in. lbs.) (Fig. 95).
(5) Install oil pick-up tube with new O-ring. Lubri-
cate O-ring before installation. Tighten attaching
bolts to 28 N·m (250 in. lbs.) (Fig. 95).
(6) Install oil pan. (Refer to 9 - ENGINE/LUBRI-
CATION/OIL PAN - INSTALLATION)
(7) Install timing chain and sprockets. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - INSTALLATION)
(8) Install timing chain cover. (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION)
(9) Install crankshaft vibration damper. (Refer to 9
- ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION)
(10) Fill crankcase with engine oil to correct level.
Fig. 101 MEASURING OUTER ROTOR CLEARANCE
IN HOUSING
1 - FEELER GAUGE
2 - OUTER ROTOR
Fig. 102 MEASURING CLEARANCE BETWEEN
ROTORS
1 - OUTER ROTOR
2 - FEELER GAUGE
3 - INNER ROTOR
Fig. 103 MEASURING CLEARANCE OVER ROTORS
1 - STRAIGHT EDGE
2 - FEELER GAUGE
LH ENGINE 2.7L 9 - 71
OIL PUMP (Continued)
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