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Re: [GMCnet] Reviving the Cad 500 [message #165073 is a reply to message #164811]

Mon, 02 April 2012 18:28

GMC_LES

Messages: 569
Registered: October 2009
Location: Montreal

Karma:

Senior Member

Ken,
Is there any possibility that something running off the front of the crank is pulling it forward with enough force to load the thrust bearing?

Another very long shot might be a defect in the block oiling passages that is causing a restricted oil flow to the main journal with the thrust faces. Increasing oil flow to the thrust face by chamfering the bearing shell might actually have a negative effect if the oil flow was already on the low side. You'll find out for sure on this tear down as the bearing shell surfaces for the main with the thrust faces and the rods fed off that main should show signs of oil starvation if this is the case. I doubt this would be your situation though.

I might be smoking the wrong stuff!!

Les Burt
Montreal

On 2012-03-31, at 7:06 PM, Ken Henderson <hend4800@bellsouth.net> wrote:

> Really great day today -- NOT!!!
>
> Yesterday and this morning I connected pressure gauges at the torque
> converter output, in the return from the ATF filter (which follows the
> in-radiator cooler), and in the diagnostic port.
>
> This afternoon, Stick and I ran all of the pressure tests on page 7-13 of
> the X7525 manual. The results were pretty well centered in the normal
> range except for those in Super and Low range, which were low. Disrupting
> Manny's Saturday rain-watching, I called him for consultation. He says
> those low readings indicate a leaking accumulator, which I can live with --
> it's not relevant to the current problem.
>
> The pressure readings on the cooler circuit were pretty much in the range
> of 20-30 psi, with the return only 3-5 psi lower than the supply. The
> highest converter output pressure recorded was 40 psi, with 30 psi return
> -- probably a reading anomaly. Those are all "open circuit" measurements.
> To test the condition of the TH-425's pressure regulator, and the
> potential damage from a blocked cooler, I blocked flow in the circuit by
> clamping a rubber hose. We than ran with the transmission in Drive and the
> engine at 1000, 1500, and 2000 rpm. The corresponding pressures were 80,
> 100, and 100 psi -- close to Manny's predictions.
>
> The highest reading we recorded anywhere was 160 psi at the diagnostic port
> at 1000 rpm in Reverse. I suspect that was a false reading, because none
> of the other readings, all of which were repeated at least 3 times, was
> above 122 psi.
>
> So, it appears that the transmission is NOT responsible for my thrust
> bearing failures. While we have no way to directly test the pressure in
> the converter, the output pressure should be pretty close. And as shown by
> the blocked cooling circuit measurements, that pressure should never be
> above 100 psi. While having that much pressure continuously could over
> stress the thrust bearing, the un-blocked 20-25 psi would not.
>
> Manny and I discussed a number of different possibilities without forming
> any new hypothesis.
>
> I'm completely baffled and directionless right now.
>
> Ken H.
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Les Burt Montreal 1975 Eleganza 26ft A work in Progress

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[Message index]

		[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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