10-08-2012, 02:48 PM
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#70 (permalink)
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Base Member
Join Date: Oct 2010
Location: Billings, Montana
Posts: 164
Drives: 370Z Touring 6MT
Rep Power: 15
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Quote:
Originally Posted by SS_Firehawk
I still don't think an aftermarket pulley did this. The stock crank pulley is not a harmonic balancer or damper. It doesn't look like one, it looks like a pulley to me. Seriously, it only has a small rubber gasket and that is it. The pictures, story and diagram are great... but we aren't removing a harmonic balancer and putting on a crank pulley, we are removing a crank pulley and putting on a lighter crank pulley. The crank and pulley fusing together doesn't cause motor failure either. Now a lightweight crank failing, I have seen on this motor.
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" The stock crank pulley is not a harmonic balancer or damper ", really ?? Think VERY hard again. Take one out of your car and inspect VERY carefully of its construction and consult the automotive engine design engineers if you are still in doubt.
For engine that have internal balance shaft, you do not need a harmonic balancer. But for most motors out there without internal balance shafts, everyone of them come with crank harmonic balancers.
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