(3) Lay a straightedge across the pump cover sur-
face (Fig. 112). If a 0.025 mm (0.001 in.) feeler gauge
can be inserted between cover and straight edge,
cover should be replaced.
(4) Measure thickness and diameter of outer rotor.
If outer rotor thickness measures 14.299 mm (0.563
in.) or less (Fig. 113), or if the diameter is 79.78 mm
(3.141 inches.) or less, replace outer rotor.
(5) If inner rotor measures 14.299 mm (0.563 in.)
or less replace inner rotor (Fig. 114).
Fig. 110 Oil Pressure Relief Valve
1 - RELIEF VALVE
2 - SPRING
3 - RETAINER CAP
4 - COTTER PIN
Fig. 111 Oil Pump
1 - OIL PUMP BODY
2 - OIL PUMP OUTER ROTOR
3 - SCREWS
4 - OIL PUMP COVER
5 - OIL PUMP INNER ROTOR
Fig. 112 Checking Oil Pump Cover Flatness
1 - STRAIGHT EDGE
2 - FEELER GAUGE
3 - OIL PUMP COVER
Fig. 113 Measuring Outer Rotor Thickness
Fig. 114 Measuring Inner Rotor Thickness
9 - 156 ENGINE 3.5L LH
OIL PUMP (Continued)
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