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Alloy Under Drive Pulley and Rod Failure

posted by  MrNabisco on  Sun Jul 31 11:51 CST 2011
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last visit: Wed Oct 22 12:36 CST 2014
[RELATED]

Question: Could there be a correlation between putting a lighter aluminum drive pulley on a B230 and rod failure?

Back when I was messing with VW airhead motors the game was to put a HEAVIER pulley on to promote smoother revs. Gene Berg was famous for these.

Now does this same thought work with the Volvo red block? Does the heavy stock harmonic balancer promote longer crank/rod life?

I just lost a B230F to rod failure. I realize overheating was the main culprit but wonder if that combined with the lighter weight Unitek pulley did the damage.

Trying to learn a bit from my mistakes...






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