Engine - Engine and crankcase
Standard crankshaft main bearing selection
Main bearing bore fit class
Standard crankshaft
journals
Class (1)
Class (2)
Class (3)
Green
Green
Yellow
Class (1) 92.970 to 92.980
mm
Green
Yellow
Yellow
Red
Green
Green
Class (2) 92.980 to 92.990
mm
Green
Green
Yellow
Red
Red
Green
Class (3) 92.990 to 93.000
mm
Red
Green
Green
0.127 mm under-size crankshaft main bearing selection
Main bearing bore fit class
Standard crankshaft
journals
Class (1)
Class (2)
Class (3)
Green/Black
Green/Black
Yellow/Black
Class (1) 92.843 to 92.853
mm
Green/Black
Yellow/Black
Yellow/Black
Red/Black
Green/Black
Green/Black
Class (2) 92.853 to 92.863
mm
Green/Black
Green/Black
Yellow/Black
Red/Black
Red/Black
Green/Black
Class (3) 92.863 to 93.872
mm
Red/Black
Green/Black
Green/Black
With the variables in the bearing selection process, it is
always a good idea to use a plastic gauge to test each
journal for proper clearance.
RAIL15TR00392BA
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