LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 1999 >> Firefly (CANADA) L4-1.3L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Block Assembly >> System Specifications >> Main Bearing Clearances
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Main Bearing Clearances

Crankshaft Runout 0.0023
Crankshaft Thrust Play STD 0.0044-0.0122
MAX 0.0149
Crankshaft Out Of Round 0.0004
Crankshaft Taper 0.0004
Crankshaft Journal Diameter Stamping #1 1.7714-1.7716
Stamping #2 1.7712-1.7714
Stamping #3 1.7709-1.7712
Reground Crankshaft 1.7611-1.7618
Main Bearing(Standard Replacement Bearings) Green 0.0786-0.0787
Black 0.0787-0.0788
Colorless(No Paint) 0.0788-0.0789
Yellow 0.0789-0.079
Blue 0.079-0.0791
Main Bearings(Oversized Replacement Bearings 0.0098) Green and Red 0.0835-0.0836
Black and Red 0.0836-0.0837
Red Only 0.0837-0.0838
Yellow and Red 0.0838-0.0839
Blue and Red 0.0839-0.084
Main Bearing Clearance STD 0.0008-0.0016
MAX 0.0023
Thrust Bearing Thickness STD 0.0984
MAX 0.1009