Cadillac Workshop Service and Repair Manuals

Crankshaft: Specifications
Crankshaft Dimensions

Crankshaft and Main Bearings Specifications

Clearance, # 1 Main Bearing

New Limit .....................................................................................................................................................................  0.020-0.079mm (.0008"-.0031")
Worn Limit ..........................................................................................................................................................................................  0.080mm (.0031")

Clearance, # 2,3,4,5 Main Bearings

New Limits ................................................................................................................................................................  0.040-0.100mm (0.0016"-0.0039")
Worn Limits .......................................................................................................................................................................................  0.115mm (0.0045")

Main Bearing Caps

Screw Thread Diameter ...........................................................................................................................................................................................  12mm
Main Bearing Journal, Diameter ..........................................................................................................................................................  66.940-66.965mm

Main Bearing Journals, Out-Of-Round

(not over) ...........................................................................................................................................................................................  0.008mm (0.0003")

Main Bearing journal length

NO.1 ....................................................................................................................................................................................................  24.99mm (0.984")
NO.2 ....................................................................................................................................................................................................  25.98mm (1.023")
NO.3 ....................................................................................................................................................................................................  27.88mm (1.098")
NO.4 ....................................................................................................................................................................................................  25.98mm (1.023")
NO.5 ....................................................................................................................................................................................................  37.98mm (1.495")

Crankpin Diameter

Crankpin.......................................................................................................................................................................  48.945-48.970mm (1.927-1.928")

Crankpin Out-Of-Round

Not Over ............................................................................................................................................................................................  0.008mm (0.0003")

End Play in Crankshaft

New Limits ..................................................................................................................................................................  0.026-0.206mm (0.0010"-0.008")
Worn Limits .............................................................................................................................................................................................. .38mm (0.015")