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timetodo

heat treated crankshaft

Timetodo
12 years ago

hello all i have a crankshaft from a 16.5 b/s 313777 man 12/2000 all journal surfaces are within specs and in good shape. there is heat discloration on both sides of the main journal in the casting, it spreads out a good 3/8 from the edge of the journal on top and goes to nothing at the bottom. i read that heavy duty crankpins were heat treated at the factory. my question is, are the markings on the crank any means of identification? thanks

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