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194 Posts
I'm sure someone will say it's not needed, but has anyone had the rod journals on the crank groved to improve oil flow????
GPZ, You have me all wrong!! I didn't say you couldn't SPECULATE!!Hey, that's my opinion, and I'm sticking to it.
I think Bonnies are perfect just the way they left the factory.
Panda this is what he said!!! Which goes aganist what you just said, so i'm not sure what your agreeing with, but that's OK since we all have opinions!! Crank or bearings, the end result is the same as far as preformance when placed under stress, an if not stressed, than certainly longer bearing life= longer engine life or why else would you do 100's of bearings as you stated??I know the oil cushion is the effective instant supporting structure, but you are STILL reducing the "bearing" surface, and the instant molecular strengh of the larger oil volume is not as great as the thinner layer.
The bearings I have done were mostly in large electric motors (usually mineshaft winding engines around 200HP) the bearings used are large and it helps to distribute oil. I would be very wary of doing this to a conrod bearing because they are relatively tiny, so the amount of surface removed is not trivial. The grooves represent mobile oil and not a pressure surface. I would absolutely not do it to the crankshaft, as if you trash shells they are easy to replace, cranks are another matter.Panda this is what he said!!! Which goes aganist what you just said, so i'm not sure what your agreeing with, but that's OK since we all have opinions!! Crank or bearings, the end result is the same as far as preformance when placed under stress, an if not stressed, than certainly longer bearing life= longer engine life or why else would you do 100's of bearings as you stated??
Cheers, Don