Cadillac Workshop Service and Repair Manuals

Crankshaft Main Bearing: Specifications
Main Bearing Dimension/Clearance Specifications

Main Bearing Clearance Limit

New Limit .........................................................................................................................................................  0.015-0.055 mm (0.0006-0.002 inch)
Worn Limit ..........................................................................................................................................................................  0.0635 mm (0.0025 inch)

Main Bearing Journal Diameter ........................................................................................................................  64.352-64.346 mm (2.5335-2.5337 inch)
Main Bearing Journal Out-of-Round (Not Over) .......................................................................................................................  0.004 mm (0.00016 inch)
Main Bearing Journal Taper ......................................................................................................................................................  0.004 mm (0.00016 inch)
Main Bearing Journal Length - No. 1 ..............................................................................................................................................  24.6 mm (0.969 inch)
Main Bearing Journal Length - No. 2 ..............................................................................................................................................  24.6 mm (0.969 inch)
Main Bearing Journal Length - No. 3 ..............................................................................................................................................  25.2 mm (0.992 inch)
Main Bearing Journal Length - No. 4 ..............................................................................................................................................  24.6 mm (0.969 inch)
Main Bearing Journal Length - No. 5 ..............................................................................................................................................  24.6 mm (0.969 inch)
Crankpin Journal Diameter ...............................................................................................................................  53.948-53.962 mm (2.1239-2.1245 inch)
Crankpin Journal Out-of-Round (Not Over) ..............................................................................................................................  0.004 mm (0.00016 inch)
Crankpin Journal Taper ...............................................................................................................................................................  0.005 mm (0.0002 inch)
End Play in Crankshaft - New Limits ..............................................................................................................................  0.05-0.5 mm (0.002-0.019 inch)
End Play in Crankshaft - Worn Limits ..............................................................................................................................................   0.5 mm (0.020 inch)
Flywheel Flange Face Runout ........................................................................................................................................................  0.025 mm (0.001 inch)
Rear Main Seal Diameter ..............................................................................................................................................  95.76-95.98 mm (3.77-3.78 inch)