gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Crankshaft Seal Retainer > < Fastener Tightening Specifications|Page 4876
Page 1
background image

Crankshaft Main Bearing: Specifications
Engine Mechanical Specifications (RPO LC9 VIN 3)

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

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

Crankshaft Seal Retainer > < Fastener Tightening Specifications|Page 4876