Bell Housing Bolts; Engine Replacement - GMC G Service Manual

Figure 43 — Rear Engine Mounting (P-Models with
Flywheel Housing Type Mounting)

ENGINE REPLACEMENT

R/V AND P-MODELS
M Remove or Disconnect (Figures 35, 36, 37,
39, 40, 41 and 43)
1. Hood.
2. Battery negative cable.
3. Air cleaner.
4. Radiator and fan shroud. Refer to ENGINE COOL­
ING (SEC. 6B).
5. Necessary engine wiring:
• Starter and solenoid wires.
• Generator wires.
• Temperature sensor wire.
• Oil pressure sender wire.
• Distributor or coil wires.
• Any other necessary wiring.
6. Accelerator, cruise control and TVS linkages, as
equipped.
7. Fuel supply line.
8. Necessary vacuum hoses:
• Evaporative emission hoses.
• Vacuum booster hose (if used).
• Cruise control hose (if used).
• Any other necessary vacuum hoses.
9. Power steering pump, and lay aside.
10. Air conditioning compressor (if equipped), and lay
aside.
• Raise the vehicle. Support with suitable safety
stands.
11. Exhaust pipes at the manifolds.
12. Starter.
13. Flywheel or torque converter cover.
7.4 LITER V8 6A5-31
14. Flex plate to torque converter bolts (automatic
transmission).
• Lower the vehicle.
• Support the transmission.
• Attach a suitable lifting fixture.
15. Bell housing to engine bolts.
16. Front engine mounting through bolts.
17. Engine.
h + l Install or Connect (Figures 35, 36, 37, 39, 40,
41 and 43)
1. Engine in the vehicle.
NOTICE: See " Notice" on page 6A5-1 of this
section.
2. Engine mounting through bolts and nuts.
H O Tighten
• Fasteners to specifications. Refer to figures 35,
36, 37 and 38.

3. Bell housing bolts.

• Remove the lifting fixture and transmission jack.
• Raise the vehicle. Support with suitable safety
stands.
4. Flex plate to torque converter bolts (automatic
transmission).
5. Flywheel or torque converter cover.
6. Starter.
7. Exhaust pipes at the manifolds.
8. Air conditioning compressor.
9. Power steering pump.
10. Vacuum hoses.
11. Fuel supply line.
12. Accelerator, cruise control, and TVS linkages, as
equipped.
13. Engine wiring.
14. Radiator and fan shroud: Refer to ENGINE COOL­
ING (SEC. 6B).
15. Air cleaner.
16. Hood.
17. Battery negative cable.
18. Proper quantity and grade of coolant.
G-MODELS
M Remove or Disconnect (Figures 38 and 42)
1. Battery ground cable.
• Drain the cooling system. Refer to ENGINE COOL­
ING (SEC. 6B).
2. Vacuum and electrical lines from cruise servo (if
equipped).
3. Grille and lower grille valence.
4. Upper radiator support.