gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Engine Block Heater > < Crankshaft, Engine|Specifications
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First Pass in Sequence ..............................................................................................................................................................................  20 Nm (15 ft. lbs.)
Final Pass in Sequence ..........................................................................................................................................................................................  80 degrees

M10 Studs
First Pass in Sequence ..............................................................................................................................................................................  20 Nm (15 ft. lbs.)
Final Pass in Sequence ..........................................................................................................................................................................................  51 degrees

M8 Bolt ....................................................................................................................................................................................................  25 Nm (18 ft. lbs.)

Crankshaft Main Bearing 
Bore Diameter .............................................................................................................................................................  69.871 - 69.889 mm (2.75 - 2.751 in)
Bore Out of Round ..............................................................................................................................................................................  0.006 mm (0.0002 in)

Crankshaft Main Bearing Clearance
Production ...................................................................................................................................................................  0.02 - 0.052 mm (0.0008 - 0.0021 in)
Service ........................................................................................................................................................................  0.02 - 0.065 mm (0.0008 - 0.0025 in)

Engine Block Heater > < Crankshaft, Engine|Specifications