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Home >> GMC >> 1981 >> Magnavan Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Removal >> V8 Engines >> "G" Models

"G" Models

  1. Remove battery cable and drain cooling system. Remove grille, upper radiator support and lower grille valance. Disconnect transmission oil cooler lines (if equipped), and radiator hoses. Remove washer jar with bracket and remove radiator. Remove air cleaner, air stove pipe and accelerator cable from carburetor.
  2. If equipped with power steering, remove pump and lay aside. Disconnect wiring from firewall connection and remove carburetor. Remove thermostat housing, oil fill pipe and disconnect heater hoses. If equipped with cruise control, remove servo, transducer and bracket.
  3. Raise vehicle and drain crankcase. Disconnect tail pipe at manifold. Remove propeller shaft and shift linkage. Disconnect fuel line from pump and speedometer cable. Remove transmission mount bolts and engine mount bracket-to-frame bolts.
  4. Remove engine mount through bolts. Raise engine slightly and remove engine mounts. Block up engine with wooden block between oil pan and crossmember. Lower vehicle and install lifting device. Remove engine.
TIGHTENING SPECIFICATIONS

Application Ft. Lbs.
Flywheel Housing-to-Engine 30
Transmission Case-to-Engine 35
Oil Cooler Pipe Connections 11
Center Support Bolt 23
Converter-to-Flywheel Bolts 35
Rear Mount-to-Transmission 40
Rear Mount-to-Crossmember Bolt 40
Crossmember Mounting Bolt 25