Specifications

OIL PUMP PRESSURE RELIEF VALVE
REMOVAL
(1) Disconnect the negative battery cable
(2) Remove the oil pan. Refer to oil pan removal
and installation procedure in this section.
(3) Remove the relief valve snap ring.
(4) Remove the relief valve cap, spring, and
plunger (Fig. 89).
(5) Check the relief valve spring length. Relief
valve spring free length is 57.5mm (2.263 in.). If
spring length is less or spring is distorted it must be
replaced.
(6) Check the plunger for scoring, replace if neces-
sary.
INSTALLATION
(1) Thoroughly clean all components and relief
valve pocket in cylinder block.
Fig. 85 Timing Marks
Fig. 86 Vacuum Pump
Fig. 87 Vacuum Pump Parts
Fig. 88 Vacuum Pump Mounting Hole
9 - 44 ENGINE WJ
REMOVAL AND INSTALLATION (Continued)