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post #11 of 14 Old 04-29-2013
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Re: Strange noises from below...

I'll third the cutlass, and throw in an engine alignment/mounts issue as well.

No big deal, just routine maintenance issues.


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post #12 of 14 Old 04-29-2013
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Re: Strange noises from below...

Ditto on the cutlass bearing.

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post #13 of 14 Old 04-29-2013
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Re: Strange noises from below...

If you have a 3gmf like I do there is a spot between 1300-1700 rpm where it isn't as smooth, goes away after you power throught the range.


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post #14 of 14 Old 05-02-2013
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Re: Strange noises from below...

We suggest movement that = more than 2.5% of shaft diameter as a worn bearing and one that should be changed. Different shaft sizes will run different clearances from new and different manufacturers also run different clearances so ideally you should get the spec from the manufacturer.
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