Crankshaft, Engine

Crankshaft, Standard And Repair Dimension Specifications

Crankshaft Dimensions (Part 1 Of 2):

Crankshaft Dimensions (Part 2 Of 2):

Grind running surfaces for oil seals to 29.670 and 89.580 sizes only if score marks are too deep. In other cases, repolish if required, Rt = 3.

Oil bores are rounded to R 0.5 after grinding.

Remove sharp edges with R = 0.2 to 0.5.

Max. permissible radial runout relative to support in - max. 0.04.

Surface treatment requirements: Gas carbonitrided PN 2063.

Do not straighten main bearings 3 and 5 after nitriding treatment.

Straightening the other main bearing by levering at the radii is permissible.

Running surfaces of main and big end bearing journals are polished after nitriding treatment.

Color coding or repair sizes:

1st repair size..... blue dot
2nd repair size..... green dot