911 Turbo AWD F6-3600cc 3.6L SOHC Twin Turbo (1997)
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.
