Crankshaft Main Bearing

Main Bearing Oil Clearance:
Standard oil clearance:
No.1 and No.4 journals 0.014 - 0.034 mm (0.0006 - 0.0013 inch)
No.2 and No.3 journals 0.026 - 0.046 mm (0.0010 - 0.0018 inch)


Maximum clearance:
No.1 and No.4 journals 0.05 mm (0.0020 inch)
No.2 and No.3 journals 0.06 mm (0.0024 inch)

If the oil clearance is greater than maximum, replace the bearings. If necessary, replace the crankshaft.

Thrust Washer Thickness 1.930 - 1.980 mm (0.0760 - 0.0780 inch)

Main Bearing Center Wall Thickness:
Reference TMC Made:
Mark 1 2.486 - 2.489 mm (0.0979 - 0.0980 inch)
Mark 2 2.489 - 2.492 mm (0.0980 - 0.0981 inch)
Mark 3 2.492 - 2.495 mm (0.0981 - 0.0982 inch)
Mark 4 2.495 - 2.498 mm (0.0982 - 0.0983 inch)
Mark 5 2.498 - 2.501 mm (0.0983 - 0.0985 inch)
Mark 6 2.501 - 2.504 mm (0.0985 - 0.0986 inch)
Mark 7 2.504 - 2.507 mm (0.0986 - 0.0987 inch)
Reference TMMK Made:
Mark 1 2.485 - 2.488 mm (0.0978 - 0.0980 inch)
Mark 2 2.488 - 2.491 mm (0.0980 - 0.0981 inch)
Mark 3 2.491 - 2.494 mm (0.0981 - 0.0982 inch)
Mark 4 2.494 - 2.497 mm (0.0982 - 0.0983 inch)
Mark 5 2.497 - 2.500 mm (0.0983 - 0.0984 inch)
Mark 6 2.500 - 2.503 mm (0.0984 - 0.0985 inch)
Mark 7 2.503 - 2.506 mm (0.0985 - 0.0987 inch)