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Re: [GMCnet] Reviving the Cad 500 [message #163606 is a reply to message #163506]

Tue, 20 March 2012 07:16

Steven Ferguson

Messages: 3447
Registered: May 2006

Karma:

Senior Member

I've seen this happen in BBC engines when the thrust was checked with the
leading or trailing edge of the main bearings up against one or more fillet
radius on the crank. It doesn't take much. I prefer to check thrust
twice. Once with the crank sitting in the block without the main caps
installed, then after the main caps are installed and torqued. During the
torque process I rock the crank back and forth to ensure that I'm torquing
in the center of the bearing surface on the crank. A lot of premium engine
remanufactures will chamfer the edges of the bearings as cheap insurance
against this. Another issue is how the fillet radius on the crank main
thrust bearing is addressed during the grinding process. A friend of mine
in San Diego built a device to measure thrust pressure during shift points.
With a stage one shift kit installed it was amazing how much pressure was
generated against the thrust bearing. Considerable more than normal.
I'm not saying your CS was not in good hands Ken, just 2 cents worth here.

On Mon, Mar 19, 2012 at 8:01 AM, James Hupy <jamesh1296@gmail.com> wrote:

> Rob, rocking couple imbalance is very common in V-twins and Vertical twins.
> As a V-8 is just 4 of them, the condition also exists in them. I don't
> think that the forces act outside of the rotational plane however, which
> might rule our thrust forces. Something is either introducing a mammoth
> amount of abrasive material to the thrust surfaces, or some force greater
> than what would be applied by a manual clutch is putting end play loads on
> the crankshaft that is displacing the lubricants present in the thrust
> area. As this type of loading is difficult to imagine in an engine with a
> torque converter, it makes me scratch my head & ponder WTF?
> Could it be the lubricant that he is using that does not have enough anti
> scuff/anti wear additives? Dare I mention ZddP? Probably not a great idea.
> I kinda am leaning towards that arena with the information at hand.
> Jim Hupy
> Salem, OR
> 78 GMC Royale 403
>
> On Mon, Mar 19, 2012 at 5:05 AM, Rob Mueller <robmueller@iinet.net.au
> >wrote:
>
> > Johnny,
> >
> > I was wondering if it is possible in a V-8 engine to have enough couple
> > imbalance in the crankshaft to cause it to move forward and aft?
> >
> > For those of you who don't know what couple imbalance is:
> >
> > http://www.azimadli.com/Vibman/coupleimbalance.htm
> >
> >
> > Regards,
> > Rob M.
> >
> > -----Original Message-----
> > From: Johnny Bridges
> >
> > Some days it's the elevator. Some days, it's the shaft. You may be down
> > to
> > RF&RA (Rage, Frustration, and Random Actions). If the transmission isn't
> > pushing against the shaft, what are the other possibilities? Slightly
> bent
> > cionnecting rod? Out of line cam drive? The diety doesn't like you?
> >
> > --johnny
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
> _______________________________________________
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>

--
Fathom the hypocrisy of a nation where every citizen must prove they have
health insurance......but not everyone has to prove they're a citizen.
Steve Ferguson
Sierra Vista, AZ
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		[GMCnet] Reviving the Cad 500 By: Ken Henderson on Mon, 12 March 2012 21:11
		Re: [GMCnet] Reviving the Cad 500 By: Dennis S on Mon, 12 March 2012 21:51
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Tue, 13 March 2012 07:44
		Re: [GMCnet] Reviving the Cad 500 By: Kosier on Mon, 12 March 2012 22:05
		Re: [GMCnet] Reviving the Cad 500 By: sgltrac on Mon, 12 March 2012 23:42
		Re: [GMCnet] Reviving the Cad 500 By: ljdavick on Mon, 12 March 2012 23:51
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Tue, 13 March 2012 06:55
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 13 March 2012 07:08
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Tue, 13 March 2012 08:02
		Re: [GMCnet] Reviving the Cad 500 By: Larry on Tue, 13 March 2012 09:23
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 13 March 2012 12:05
		Re: [GMCnet] Reviving the Cad 500 By: Larry on Tue, 13 March 2012 12:58
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 13 March 2012 18:15
		Re: [GMCnet] Reviving the Cad 500 By: Larry on Tue, 13 March 2012 18:58
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Tue, 13 March 2012 19:14
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 13 March 2012 19:34
		Re: [GMCnet] Reviving the Cad 500 By: jimk on Wed, 14 March 2012 01:23
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Wed, 14 March 2012 07:28
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Wed, 14 March 2012 21:29
		Re: [GMCnet] Reviving the Cad 500 By: jimk on Thu, 15 March 2012 01:22
		Re: [GMCnet] Reviving the Cad 500 By: USAussie on Thu, 15 March 2012 08:43
		Re: [GMCnet] Reviving the Cad 500 By: k2gkk on Thu, 15 March 2012 11:53
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 15 March 2012 21:15
		Re: [GMCnet] Reviving the Cad 500 By: Steve L. Clevenger on Fri, 16 March 2012 00:15
		Re: [GMCnet] Reviving the Cad 500 By: jimk on Fri, 16 March 2012 01:30
		Re: [GMCnet] Reviving the Cad 500 By: USAussie on Fri, 16 March 2012 10:09
		Re: [GMCnet] Reviving the Cad 500 By: ljdavick on Fri, 16 March 2012 01:37
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Thu, 15 March 2012 06:04
		Re: [GMCnet] Reviving the Cad 500 By: Larry on Fri, 16 March 2012 07:54
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Fri, 16 March 2012 08:14
		Re: [GMCnet] Reviving the Cad 500 By: Ken Burton on Sat, 17 March 2012 18:46
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Sat, 17 March 2012 19:24
		Re: [GMCnet] Reviving the Cad 500 By: Ken Burton on Sat, 17 March 2012 19:31
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Sun, 18 March 2012 08:55
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sun, 18 March 2012 20:31
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Sun, 18 March 2012 20:51
		Re: [GMCnet] Reviving the Cad 500 By: Kosier on Sun, 18 March 2012 21:16
		Re: [GMCnet] Reviving the Cad 500 By: midlf on Sun, 18 March 2012 22:09
		Re: [GMCnet] Reviving the Cad 500 By: USAussie on Sun, 18 March 2012 22:04
		Re: [GMCnet] Reviving the Cad 500 By: James Hupy on Sun, 18 March 2012 22:27
		Re: [GMCnet] Reviving the Cad 500 By: Marsh Wilkes on Sun, 18 March 2012 22:18
		Re: [GMCnet] Reviving the Cad 500 By: Ken Burton on Sun, 18 March 2012 23:35
		Re: [GMCnet] Reviving the Cad 500 By: ljdavick on Mon, 19 March 2012 01:05
		Re: [GMCnet] Reviving the Cad 500 By: USAussie on Mon, 19 March 2012 06:54
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Mon, 19 March 2012 06:50
		Re: [GMCnet] Reviving the Cad 500 By: USAussie on Mon, 19 March 2012 07:05
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Mon, 19 March 2012 07:22
		Re: [GMCnet] Reviving the Cad 500 By: James Hupy on Mon, 19 March 2012 10:01
		Re: [GMCnet] Reviving the Cad 500 By: Steven Ferguson on Tue, 20 March 2012 07:16
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 20 March 2012 08:54
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Tue, 20 March 2012 11:38
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 20 March 2012 12:29
		Re: [GMCnet] Reviving the Cad 500 By: GMC Cruse on Sat, 24 March 2012 11:09
		Re: [GMCnet] Reviving the Cad 500 By: Dennis S on Sat, 24 March 2012 15:32
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 24 March 2012 21:09
		Re: [GMCnet] Reviving the Cad 500 By: Dennis S on Sat, 24 March 2012 22:45
		Re: [GMCnet] Reviving the Cad 500 By: Steven Ferguson on Sun, 25 March 2012 07:00
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 24 March 2012 20:19
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Mon, 19 March 2012 08:02
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Mon, 19 March 2012 09:56
		Re: [GMCnet] Reviving the Cad 500 By: Carl S. on Mon, 19 March 2012 13:08
		Re: [GMCnet] Reviving the Cad 500 By: George Beckman on Sat, 24 March 2012 18:05
		Re: [GMCnet] Reviving the Cad 500 By: Dolph Santorine on Sat, 24 March 2012 18:25
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 24 March 2012 21:21
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 24 March 2012 21:17
		Re: [GMCnet] Reviving the Cad 500 By: GMC_LES on Mon, 26 March 2012 20:55
		Re: [GMCnet] Reviving the Cad 500 By: GMC_LES on Tue, 27 March 2012 07:37
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 27 March 2012 14:12
		Re: [GMCnet] Reviving the Cad 500 By: Mr ERFisher on Tue, 27 March 2012 14:14
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 27 March 2012 14:21
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Tue, 27 March 2012 19:34
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 27 March 2012 21:20
		Re: [GMCnet] Reviving the Cad 500 By: Steven Ferguson on Wed, 28 March 2012 07:48
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 29 March 2012 18:05
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Wed, 28 March 2012 08:00
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 29 March 2012 18:12
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 31 March 2012 18:06
		Re: [GMCnet] Reviving the Cad 500 By: shawnee on Sat, 31 March 2012 20:11
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 31 March 2012 20:19
		Re: [GMCnet] Reviving the Cad 500 By: GMC_LES on Mon, 02 April 2012 18:28
		Re: [GMCnet] Reviving the Cad 500 By: Dennis S on Mon, 02 April 2012 18:43
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Mon, 02 April 2012 18:54
		Re: [GMCnet] Reviving the Cad 500 By: roy1 on Tue, 03 April 2012 11:15
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Mon, 02 April 2012 18:51
		Re: [GMCnet] Reviving the Cad 500 By: Carleton Douglas[1] on Tue, 03 April 2012 08:11
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 03 April 2012 19:18
		Re: [GMCnet] Reviving the Cad 500 By: Larry on Tue, 03 April 2012 16:14
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 03 April 2012 19:36
		Re: [GMCnet] Reviving the Cad 500 By: GMC_LES on Wed, 04 April 2012 16:34
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 17 March 2012 19:40
		Re: [GMCnet] Reviving the Cad 500 By: ljdavick on Sat, 17 March 2012 20:15
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sun, 18 March 2012 07:49
		Re: [GMCnet] Reviving the Cad 500 By: Kosier on Sat, 17 March 2012 20:25
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sun, 18 March 2012 07:44
		Re: [GMCnet] Reviving the Cad 500 By: ljdavick on Sun, 18 March 2012 03:44
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sun, 18 March 2012 07:42
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Fri, 16 March 2012 20:39
		Re: [GMCnet] Reviving the Cad 500 By: WD0AFQ on Fri, 16 March 2012 22:33
		Re: [GMCnet] Reviving the Cad 500 By: George Beckman on Sat, 17 March 2012 00:41
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 17 March 2012 03:32
		Re: [GMCnet] Reviving the Cad 500 By: James Hupy on Sat, 17 March 2012 10:43
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Sat, 17 March 2012 18:25
		Re: [GMCnet] Reviving the Cad 500 By: Ernest Dankert on Sat, 17 March 2012 22:48
		Re: [GMCnet] Reviving the Cad 500 By: roy1 on Mon, 19 March 2012 11:12
		Re: [GMCnet] Reviving the Cad 500 By: Dennis S on Mon, 19 March 2012 11:30
		Re: [GMCnet] Reviving the Cad 500 By: Ed Jarmul on Mon, 19 March 2012 11:45
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Mon, 19 March 2012 14:39
		Re: [GMCnet] Reviving the Cad 500 By: jaholland on Mon, 19 March 2012 18:28
		Re: [GMCnet] Reviving the Cad 500 By: Adrien G. on Mon, 19 March 2012 23:17
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Tue, 20 March 2012 08:09
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Wed, 28 March 2012 09:46
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Wed, 28 March 2012 13:51
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Wed, 28 March 2012 19:58
		Re: [GMCnet] Reviving the Cad 500 By: klassic kampers on Wed, 28 March 2012 20:19
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Wed, 28 March 2012 22:10
		Re: [GMCnet] Reviving the Cad 500 By: rssbob on Wed, 28 March 2012 22:14
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Wed, 28 March 2012 22:37
		Re: [GMCnet] Reviving the Cad 500 By: Steve L. Clevenger on Mon, 19 March 2012 23:36
		Re: [GMCnet] Reviving the Cad 500 By: Richard Brown on Wed, 28 March 2012 01:48
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 29 March 2012 18:03
		Re: [GMCnet] Reviving the Cad 500 By: kingd on Sat, 31 March 2012 20:08
		Re: [GMCnet] Reviving the Cad 500 By: Richard Brown on Mon, 02 April 2012 20:21
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Mon, 02 April 2012 20:42
		Re: [GMCnet] Reviving the Cad 500 By: JohnL455 on Tue, 03 April 2012 19:17
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Tue, 03 April 2012 22:31
		Re: [GMCnet] Reviving the Cad 500 By: Richard Brown on Tue, 03 April 2012 23:36
		Re: [GMCnet] Reviving the Cad 500 By: JohnL455 on Wed, 04 April 2012 09:24
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Wed, 04 April 2012 10:03
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Wed, 04 April 2012 15:38
		Re: [GMCnet] Reviving the Cad 500 By: k2gkk on Wed, 04 April 2012 16:00
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Wed, 04 April 2012 17:20
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Wed, 04 April 2012 19:06
		Re: [GMCnet] Reviving the Cad 500 By: JohnL455 on Wed, 04 April 2012 17:28
		Re: [GMCnet] Reviving the Cad 500 By: Matt Colie on Thu, 05 April 2012 09:16
		Re: [GMCnet] Reviving the Cad 500 By: g.winger on Wed, 04 April 2012 19:42
		Re: [GMCnet] Reviving the Cad 500 By: Kosier on Wed, 04 April 2012 20:33
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Wed, 04 April 2012 21:20
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Thu, 05 April 2012 05:26
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 05 April 2012 08:21
		Re: [GMCnet] Reviving the Cad 500 By: Dan W on Thu, 05 April 2012 09:08
		Re: [GMCnet] Reviving the Cad 500 By: Bob de Kruyff on Thu, 05 April 2012 12:51
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Fri, 06 April 2012 06:52
		Re: [GMCnet] Reviving the Cad 500 By: Steven Ferguson on Thu, 05 April 2012 07:09
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 05 April 2012 08:16
		Re: [GMCnet] Reviving the Cad 500 By: jhbridges on Fri, 06 April 2012 06:47
		Re: [GMCnet] Reviving the Cad 500 By: Steven Ferguson on Fri, 06 April 2012 07:45
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Fri, 06 April 2012 07:56
		Re: [GMCnet] Reviving the Cad 500 By: Richard Brown on Thu, 05 April 2012 03:47
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 05 April 2012 08:10
		Re: [GMCnet] Reviving the Cad 500 By: g.winger on Thu, 05 April 2012 05:19
		Re: [GMCnet] Reviving the Cad 500 By: GMC_LES on Thu, 05 April 2012 07:45
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 05 April 2012 08:27
		Re: [GMCnet] Reviving the Cad 500 By: Kosier on Thu, 05 April 2012 21:42
		Re: [GMCnet] Reviving the Cad 500 By: John Heslinga on Thu, 05 April 2012 13:19
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Thu, 05 April 2012 22:16
		Re: [GMCnet] Reviving the Cad 500 By: Marsh Wilkes on Fri, 06 April 2012 08:06
		Re: [GMCnet] Reviving the Cad 500 By: Ken Henderson on Fri, 06 April 2012 08:19
		Re: [GMCnet] Reviving the Cad 500 By: Marsh Wilkes on Fri, 06 April 2012 09:05

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