Pontiac Workshop Service and Repair Manuals

Connecting Rod Bearing: Specifications

Main Bearing Journal

Diameter ...................................................................................................................................................  51.996 mm - 52.020 mm (2.0470" - 2.0480")
Width - Main, Thrust Bearing Journal (No. 3)

Including Fillets ..................................................................................................................................  27.837 mm - 27.913 mm (1.0959" - 1.0989")
Out-of-Round-Max ..................................................................................................................................................................  0.0127 mm (0.0005")
Taper ........................................................................................................................................................................................  0.0127 mm (0.0005")
Clearance ................................................................................................................................................  0.013 mm - 0.058 mm (0.0005" - 0.0023")

Crankshaft End Play ...........................................................................................................................................  0.087 mm - 0.243 mm (0.0034" - 0.0095")
Rod Bearing Journal

Diameter .....................................................................................................................................................  47.975 mm - 48.00 mm (1.8887" - 1.8897")
Out-of-Round .................................................................................................................................................................................  0.0127 mm (0.0005")
Taper ................................................................................................................................................................................................  0.127 mm (0.0005")
Clearance ......................................................................................................................................................  0.013 mm - 0.053 mm (0.0005" - 0.0020")
Rod Side Clearance ......................................................................................................................................  0.150 mm - 0.450 mm (0.0059" - 0.0177")
Width ............................................................................................................................................................  27.75 mm - 28.00 mm (1.0925" - 1.1024")

Runout of Crankshaft at Flywheel Flange ....................................................................................................................................  Max 0.025 mm (0.00098")
Runout of Crankshaft

Supported on Front and Rear Journals .........................................................................................................................................  Max 0.025 mm (0.00098")
Clearance to Crankshaft Position Sensor ................................................................................................................  0.77 mm - 1.77 mm (0.0303" - 0.0697")