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Re: [GMCnet] Reviving the Cad 500 [message #164116 is a reply to message #164099] Sat, 24 March 2012 22:45 Go to previous messageGo to previous message
Dennis S is currently offline  Dennis S   United States
Messages: 3046
Registered: November 2005
Karma:
Senior Member
Ken,

I found some more info on how poor grounding can contribute to thrust bearing failure, in brief, as I read it, voltage flow through the crank destroys the bearing face ...and they offer info on other, perhaps more likely (in your case) issues.

http://www.motor.com/article.asp?article_ID=1656

And here they offer a check list of sorts on how to diagnose the reason for bearing failure...

http://www.4secondsflat.com/Thrust_bearing_failures.html

Dennis

Ken Henderson wrote on Sat, 24 March 2012 21:09

Thanks, Dennis. I'd forgotten what a thorough review Brent Covey had
posted. That too is now in my personal files. What a shame that he
apparently never posted the results of the instrumented tests he intended
to accomplish.

Speaking of Brent, does any one know what ever became of him? I've really
missed his postings for the couple of years, at least, that he hasn't been
with us.

Ken H.


On Sat, Mar 24, 2012 at 4:32 PM, Dennis Sexton wrote:

>
>
> Ken,
>
> Another couple of links -- you may have seen --
>
> Brent Covey's notes on transmission and thrust bearing failure..
>
> http://www.gmcmotorhomeinfo.com/BASICTRAN.html
>
> And an interesting article on cooler restriction and thrust bearing
> failure. They set up tests on a GM transmission.
>
> http://www.automotix.net/autorepair/audi-v8-engine_repair_guide-720.html
>
> And lastly, a summary on a tuner site -- and one unexpected cause
> mentioned, poor grounding of the engine, but no real explanation why but a
> suggested test for poor grounding.
>
>
> http://www.dsmtuners.com/forums/articles-engine-fuel/342560-crankwalk-depth-explanation.html
>




Dennis S
73 Painted Desert 230
Memphis TN Metro
 
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