Chevrolet Workshop Service and Repair Manuals

Crankshaft: Specifications

Crankshaft Main Journal
Diameter
Production .............................................................................................................................................................  64.993 - 65.007 mm (2.558 - 2.559 inch)
Service .............................................................................................................................................................................................  64.993 mm (2.558 inch)

Out-of-Round
Production ....................................................................................................................................................................................  0.003 mm (0.000118 inch)
Service .............................................................................................................................................................................................  0.008 mm (0.0003 inch)

Taper
Production ..........................................................................................................................................................................................  0.01 mm (0.0004 inch)
Service .............................................................................................................................................................................................  0.02 mm (0.00078 inch)

Crankshaft Rear Flange Runout ...........................................................................................................................................................  0.05 mm (0.002 inch)

Crankshaft Reluctor Ring Runout ..........................................................................................................................................................  0.7 mm (0.028 inch)
(Measured 1.0 mm (0.04 inch) Below - Tooth Diameter)

Crankshaft Thrust Surface
Production ......................................................................................................................................................................  26.14 - 26.22 mm (1.029 - 1.0315) 
Service .............................................................................................................................................................................................  26.22 mm (1.0315 inch)

Crankshaft Thrust Surface Runout .....................................................................................................................................................  0.025 mm (0.001 inch)