Fitted Block Assembly; Connecting Rod Guide Tool; Installing Piston In Cylinder; Crankshaft - Pontiac Grand Prix Service Manual

6-32 1969
PONTIAC SERVICE MANUAL
8. Install rocker arm cover.
CRANKSHAFr
-
REMOVE AND REPLACE
REMOVE
1. Remove engine from vehicle.
2. Remove clutch from engine.
3. Mount engine on suitable stand.
4. Remove spark plugs.
5. Remove fan and fan pulley.
6. Remove harmonic balancer.
7. Remove oil pan and crankcase front cover.
8. Remove connecting rod bearing caps with bearings
and identify each for reinstallation.
9. Push connecting rod and piston assemblies away
from crankshaft.
10. Remove main bearing caps with bearings and
identify for reinstallation.
1 1. Remove crankshaft.
REPLACE
1. With upper bearings installed, position crankshaft in
block.
2. Using new seals in rear main bearing cap, install
main bearing caps (with lower bearings), but do not
tighten cap bolts.
3. Pull connecting rods (with upper bearings installed)
and pistons into place.
4. Install rod bearing caps (with bearings), but do not
tighten nuts.
5. With rubber mallet, hit both ends of crankshaft to
center thrust bearing.
6. Tighten main bearing caps 100 lb. ft.
7. Tighten connecting rod bearing caps 33 lb. ft.
8. Install key from old crankshaft keyway in new
crankshaft.
9. Install crankcase front cover using new seal and
gaskets.
10. Install oil pan.
11. Install harmonic balancer.
12. Install fan pulley and fan.
13. Install spark plugs.
14. Remove engine from stand.
15. Attach clutch to engine.
16. Install complete assembly in vehicle.
FITTED BLOCK ASSEMBLY
-
REPLACE
Fitted block assembly contains pistons, rings, pins and
main bearing caps.
DISASSEMBLE
1. Remove engine from vehicle.
2. Remove clutch and flywheel from engine.
3. Install engine in suitable stand.
4. Remove ground straps and dipstick.
5. Remove harmonic balancer.
6. Remove front timing belt covers.
Fig. 6-64 Connecting Rod Guide Tool
Fig. 6-65 Installing Piston in Cylinder