Disassembly Of Oil Pump; Inspection Of Pump Body And Cover; Removing Pump Regulator Valve Snap Ring; Exploded View Of Pump Cover - Pontiac Grand Prix Service Manual

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PONTIAC SERVICE MANUAL
20. Install manual valve with detent pin groove to the
right.
OIL PUMP
DISASSEMBLY OF OIL PUMP (Fig. 7E-72)
1. Place oil pump assembly in hole in bench or
Holding Fixture J 6 1 16 and J 2 1364 Adapter.
2. Compress regulator boost valve bushing against
pressure regulator spring and remove snap ring, using
snap ring pliers (Fig. 7E-73).
3. Remove regulator boost valve bushing and valve.
4. Remove pressure regulator spring.
5. Remove regulator valve, spring retainer and
spacer(s), if present (Fig. 7E-74).
6. Remove pump cover to body attaching bolts.
7. Remove pump cover from body.
8. Remove retaining pin and bore plug from pressure
regulator bore (Fig. 7E-75).
9. Remove hook type oil rings from pump cover.
10. Remove pump to forward clutch housing selective
washer.
11. Mark drive and driven gears for reassembly and
remove gears (Fig. 7E-76).
REGULATOR BOOST VALVE
SNAP RING
BUSHING AND VALVE
J 5403
1
/
REGULATOR SPRING
PUMP ASSEMBLY
Fig. 7E-73 Removing Pump Regulator Valve Snap
Ring
INSPECTION OF PUMP BODY AND V V E R
1. Inspect drive gear, driven gear, gear pocket and
crescent for scoring, galling or other damage.
2. Place pump gears in pump and check pump body
face to. gear face' clearance, should be .0008"-.0035"
(Fig. 7E-77).
3. Check face of pump body for scores or nicks,
PRESSURE R E G U L A T O R
SPACER
Fig. 7E-72 Exploded View of Pump Cover Fig. 7E-74 Removing Pressure Regulator Valve