Truth about crank shaft run out?

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Jun 21, 2010 | 04:23 PM

Rickr01

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From: Vermont

Truth about crank shaft run out?

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Here is a four part series of videos on Harley crank shaft run out, particulary as it pertains to the twin cam 96 that should help to parlay all of the fear and hype being thrown around about inferior crank shafts in these engines. This is someone that makes sense and is not talking from a "I've been screwed by Harley perspective"
If you are somewhat mechanically inclined its pretty easy to understand what he's saying. He chooses his words carefully as to not offend anybody, either his peers, the average mechanic or Mother Harley. He has a smooth way of drawing a logical conclusion on the crank run out issue. See what you think.

http://www.metacafe.com/watch/212027...t_one_of_four/

http://www.metacafe.com/watch/214608...t_two_of_four/

http://www.metacafe.com/watch/217841...three_of_four/

http://www.metacafe.com/watch/218610..._four_of_four/

Last edited by Rickr01; Jun 21, 2010 at 04:27 PM.

Jun 23, 2010 | 05:58 AM

Rickr01

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From: Vermont

Interesting Not one?

Interesting, not one comment on the video despite the unrelenting comments in earlier threads about how bad the OEM cranks are and how Harley is deliberately making a POS crank to screw people and force them into a new bike immediately following the expiration of their warranty! HMMMMM, Not even a comment from any experienced engine builders insisting that the cranks are all junk and must be replaced or welded and trued at their shops before SHE"S GOING TO BLOW SCOTTY!

Jun 23, 2010 | 06:55 AM

tolobill

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Joined: Sep 2007

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From: Flowery Branch

forget about bad cranks, stay far away from rev performance, you can read many threads in all the forums abhout there junk and bad service.

Jun 23, 2010 | 07:41 AM

shortride

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Joined: Jun 2009

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From: 46th State, USA

I didn't hear anything that had to do with all of those tolerances in relationship to the bearing mounting surfaces of the engine case. It seems the machining of the case should have at least some affect of how the crank shaft runs.

Jun 23, 2010 | 08:04 AM

dog155

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Joined: Nov 2006

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From: Windham,Maine

For those of you that still do not get it.These new cranks are Okay just no conducive to being rebuilt.Not conducive to huge horserpower.The very reason why the aftermarket will stay strong,for a long time to come.If they can survive this horrible time we are living through.