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[GMCnet] Disappointing Day [message #141296] Sat, 27 August 2011 22:54 Go to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
As Y'All may remember, I developed a transmission fluid leak on the way back
from Alabama in July. It put me beside the road very briefly -- just long
enough to add 2 qts ATF for the final 50 miles to home. Pressure washing
followed by a short road test showed all the leakage was coming from the
bell housing area. The problem just about had to be either the front pump
seal or the torque converter.

Last week, Stick Miller and I pulled the transmission, with a little
difficulty -- the left side alignment pin on the engine was really stuck in
the bell housing. And, we were shy of rear clearance, so had to loosen the
front motor mount and pull the engine forward 1/2" or so with a come-a-long.
That required disconnecting one of the mufflers -- which needed realignment
anyway. The pump seal looked good, but I was suspicious of the torque
converter. When I rapped on the input hub, it didn't sound quite right (I
had a BAD leak around the hub of one at Sheridan, WY in 2000). And one of
the 3 mounting lugs also sounded and looked a little suspicious. So I took
the TC to a local re-builder, a reliable outfit in business since '63.
They agreed with my suspicions about the mounting lug, but were not willing
to put my used TC into their pristine test tank. They built me a heavy duty
converter with brazed fins, flanged hub, etc. and priced it very reasonably.
They had some excess inventory of TH-425 parts, so I called Manny; I think
they made a deal to sell them to him. They essentially gave me a full set
of TH-425 gaskets.

With the transmission out, I decided to pull the engine oil pan and see how
my 5000 mile rebuild is looking inside. Both my NASCAR engine builder
friend and I looked it over real well and saw only good things. I glued the
pan back on last evening.

Today, my son and grandson came to help me re-install the transmission. It
took us about 2-1/2 hours to get it back in and were bolting the bell
housing on the engine when we had difficulty pulling them together. I
figured it was that tight alignment pin again, so we honked down on the
bolts pretty good, by hand. Eventually, I realized something more was wrong
and we had to pull the transmission back out.

What I discovered was that the recess in the crankshaft, into which the hub
on the TC seats, is 1.695" ID. The diameter of the hub on the TC measures
1.701". Hmmmm... Don't think I'll ever be able to press that in place. So
much for reasonable pricing. I'll take it back to the rebuilder on Monday.
In the meantime, I'm dead in the water with preparations for Goshen &
Milan. Sure hope I didn't damage the 425's pump or anything while trying to
seat that hub! :-(

At least my back held up fairly well; maybe I'll survive getting the coach
ready for the trip north.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141297 is a reply to message #141296] Sat, 27 August 2011 23:12 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
Ken,

This sounds like an "aw s#!t!" moment! I did not capitalize that because of the good news about the Caddy 500 and more importantly
your back is holding up!

Looks like something we need to check before we install new or rebuilt torque convertors! Thanks for the heads up!

Regards,
Rob M.


-----Original Message-----
From: Of Ken Henderson

With the transmission out, I decided to pull the engine oil pan and see how my 5000 mile rebuild is looking inside. Both my NASCAR
engine builder friend and I looked it over real well and saw only good things.

Eventually, I realized something more was wrong and we had to pull the transmission back out.

What I discovered was that the recess in the crankshaft, into which the hub on the TC seats, is 1.695" ID. The diameter of the hub
on the TC measures 1.701".

At least my back held up fairly well; maybe I'll survive getting the coach ready for the trip north.

Ken

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] Disappointing Day [message #141309 is a reply to message #141297] Sun, 28 August 2011 05:08 Go to previous messageGo to next message
stick miller is currently offline  stick miller   United States
Messages: 1036
Registered: March 2010
Location: Americus, Georgia
Karma: 0
Senior Member
Ken - hopefully you'll have that fixed by the time I get back to town, but I'm available on the 6,7,& 8th of Sept. BTW, this is three transmission pulls/replacements for me. I'm ready to learn something new!

Stick Miller
'78 Royale - "White Trash" - she left me for another man
'76 Eleganza - "Cousin Eddie" Sold
'84 Bluebird Wanderlodge - "Past Tents"
Americus, GA
Re: [GMCnet] Disappointing Day [message #141310 is a reply to message #141296] Sun, 28 August 2011 07:06 Go to previous messageGo to next message
PettyVTX is currently offline  PettyVTX   United States
Messages: 363
Registered: April 2011
Location: Winder Ga.
Karma: 1
Senior Member
Wow Ken thats amazing was the TC for a Caddy or olds 455? I guess there is a difference in the cranks. I thought the only difference was in the early days on a GM motor you had to put a bushing or pilot bearing in the end of the crank for a manual trans. but left it out for the TC in a automatic. I have pulled TC's out that have rusted to the crank but never had one that the pilot shaft or nub was bigger.Unless it was miss aligned during install and put a bevel on the end of the TC shaft. Just out of curiosity does the bolt holes line up with the flywheel? If you need any help giong back in with it let me know.
Ted


Ex Avion now looking for a 23' Jeep Wrangler Towd

[Updated on: Sun, 28 August 2011 07:12]

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Re: [GMCnet] Disappointing Day [message #141311 is a reply to message #141296] Sun, 28 August 2011 07:38 Go to previous messageGo to next message
Surbo is currently offline  Surbo   United States
Messages: 213
Registered: February 2004
Karma: 0
Senior Member
Ken Henderson wrote on Sat, 27 August 2011 22:54

As Y'All may remember, I developed a transmission fluid leak on the way back
from Alabama in July. It put me beside the road very briefly -- just long
enough to add 2 qts ATF for the final 50 miles to home. Pressure washing
followed by a short road test showed all the leakage was coming from the
bell housing area. The problem just about had to be either the front pump
seal or the torque converter.

Last week, Stick Miller and I pulled the transmission, with a little
difficulty -- the left side alignment pin on the engine was really stuck in
the bell housing. And, we were shy of rear clearance, so had to loosen the
front motor mount and pull the engine forward 1/2" or so with a come-a-long.
That required disconnecting one of the mufflers -- which needed realignment
anyway. The pump seal looked good, but I was suspicious of the torque
converter. When I rapped on the input hub, it didn't sound quite right (I
had a BAD leak around the hub of one at Sheridan, WY in 2000). And one of
the 3 mounting lugs also sounded and looked a little suspicious. So I took
the TC to a local re-builder, a reliable outfit in business since '63.
They agreed with my suspicions about the mounting lug, but were not willing
to put my used TC into their pristine test tank. They built me a heavy duty
converter with brazed fins, flanged hub, etc. and priced it very reasonably.
They had some excess inventory of TH-425 parts, so I called Manny; I think
they made a deal to sell them to him. They essentially gave me a full set
of TH-425 gaskets.

With the transmission out, I decided to pull the engine oil pan and see how
my 5000 mile rebuild is looking inside. Both my NASCAR engine builder
friend and I looked it over real well and saw only good things. I glued the
pan back on last evening.

Today, my son and grandson came to help me re-install the transmission. It
took us about 2-1/2 hours to get it back in and were bolting the bell
housing on the engine when we had difficulty pulling them together. I
figured it was that tight alignment pin again, so we honked down on the
bolts pretty good, by hand. Eventually, I realized something more was wrong
and we had to pull the transmission back out.

What I discovered was that the recess in the crankshaft, into which the hub
on the TC seats, is 1.695" ID. The diameter of the hub on the TC measures
1.701". Hmmmm... Don't think I'll ever be able to press that in place. So
much for reasonable pricing. I'll take it back to the rebuilder on Monday.
In the meantime, I'm dead in the water with preparations for Goshen &
Milan. Sure hope I didn't damage the 425's pump or anything while trying to
seat that hub! Sad

At least my back held up fairly well; maybe I'll survive getting the coach
ready for the trip north.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com
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Ken;

What a bummer! Do a pre-fit of the TC to the engine before installing the tranny, this is to make sure it fits the crankshaft hub and the TC bolt holes. Make sure the TC hub & crankshaft end are cleaned well, and then put a thin film of grease on the hub/shaft, as these two do some very slight moving during operation, due to the flex plate. On the locator lugs, dress the male end down with some emery cloth or such, and put some anti-seize on them, as it is steel into aluminum and they will seize.

'geterdone' and get to the rallys.

Bob Drewes in SESD
Re: [GMCnet] Disappointing Day [message #141316 is a reply to message #141309] Sun, 28 August 2011 08:35 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Stick,

I sure hope it will be back together long before then. I expect the TC
folks to fix it tomorrow. Alan says he and the boys can come back on
Wednesday. And Ted Petty has offered to come down from Athens. I've got
some parts he needs, so we may have him also. It's becoming routine now.
:-)

Have fun.

Ken


On Sun, Aug 28, 2011 at 6:08 AM, Stick Miller <stickmiller@gmail.com> wrote:

>
>
> Ken - hopefully you'll have that fixed by the time I get back to town, but
> I'm available on the 6,7,& 8th of Sept. BTW, this is three transmission
> pulls/replacements for me. I'm ready to learn something new!
> --
> Stick (I used to be skinny) Miller
> '78 Royale
> Americus, Georgia
>
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=5551
> _______________________________________________
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141318 is a reply to message #141311] Sun, 28 August 2011 08:43 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Bob,

Thanks for the tips -- NOW! :-)

I sure won't forget to check TC to flywheel fit again. The re-builder was
supposed to rebuild the unit I took to them, but it turned out to not be a
heavy duty one, so they used one of their cores. I'm hoping, and expecting,
that my old one will still be sitting where I left it when I get there at
opening time tomorrow morning. I want to measure it to compare with the
others. I'm now wondering if perhaps some of the difficulty during removal
was due to hub/crank binding in addition to the locator lug. No way there
should be 0.006" of rust build-up in the crank though, is there?

The locator lug possibly binding was definitely my fault -- I simply forgot
to clean it after we got the transmission out. But I wouldn't have thought
to put anti-seize on them.

I think I'll make it -- IF I've corrected the leak -- I've got help lined up
to do the re-re-installation.

Ken H.

On Sun, Aug 28, 2011 at 8:38 AM, Bob Drewes <bmdrewes@iw.net> wrote:

> What a bummer! Do a pre-fit of the TC to the engine before installing the
> tranny, this is to make sure it fits the crankshaft hub and the TC bolt
> holes. Make sure the TC hub & crankshaft end are cleaned well, and then put
> a thin film of grease on the hub/shaft, as these two do some very slight
> moving during operation, due to the flex plate. On the locator lugs, dress
> the male end down with some emery cloth or such, and put some anti-seize on
> them, as it is steel into aluminum and they will seize.
>
> 'geterdone' and get to the rallys.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141319 is a reply to message #141296] Sun, 28 August 2011 08:53 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
Senior Member
Sorry to hear of your problems. FWIW, Howard Glenna, John Biwersi, Bob Miller and I found a TC rebuilder while walking around the vendors at the "Back to the 50's" car show in St. Paul. The man has been in business for... IIRC... over 30 yrs. He has sold the business and is working with them for the next two years to get them oriented to the business. In the mean time some of us are having him build us a TC before he goes full retirement. Bob Miller had a TC done for his SP when the one he had started making a lot of noise. He took information about the HP and Torque curves of the Cad 500 and built it special for that motor. It is installed and Bob is VERY happy with it. If you are interested in this rebuilder, and are unable to get yours done the way you want, If you can get your TC to Goshen, I could transport it to this fella for rebuilding. IF you'd like to talk to him, PM me and I'll pass on the info about him. I'll do what I can to help.


Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: [GMCnet] Disappointing Day [message #141320 is a reply to message #141310] Sun, 28 August 2011 08:53 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Ted,

I took them the TC that I first used with a 455 and now with the 500. They
didn't use it because it was not a HD unit, but used one of their cores --
which should have been the same externally, and suitable for either. With
48 years in the business, they should know what they're doing -- maybe the
owner rattling off P/N's without ever looking at a book is misleading. :-)

My experience was the same about pilot bearings. In fact, I'd never even
given any thought to whether the TC extended as far as the end of the crank.
And I still don't know what the fit should be -- I was tempted to take a 4"
grinder and make it fit. :-)

The bolt holes do line up. After discovering the problem and wanting to
confirm it, we mounted the TC to the flex plate and it fit fine except for
that little matter of not going into the crank recess.

If you want to come over, that would be great, and would give you a chance
to look for the parts you need among my inventory. But if it's not
convenient, my son and grandsons plan to return on Wednesday. I hope to be
ready by Monday afternoon. They built this TC in about 3 hours, so it
shouldn't take them long to fix it. Hopefully they can just stick it in a
lathe and turn the hub down 0.010" or so.

I'll give you a call tomorrow after I've been to the TC re-builder's and
know the status.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com



On Sun, Aug 28, 2011 at 8:06 AM, Ted Petty <PettyVTX@gmail.com> wrote:

>
>
> Wow Ken thata amazing was the TC for a Caddy or olds 455? I guess there is
> a difference in the cranks. I thought the only difference was in the early
> days on a GM motor you had to put a bushing or pilot bearing in the end of
> the crank for a manual trans. but left it out for the TC in a automatic. I
> have pulled TC's out that have rusted to the crank but never had one that
> the pilot shaft or nub was bigger.Unless it was miss aligned during install
> and put a bevel on the end of the TC shaft. Just out of curiosity does the
> bolt holes line up with the flywheel? If you need any help giong back in
> with it let me know.
> Ted
> --
> 75 Avion-----
>
> 75 cosworth Vega Toad
>
> _______________________________________________
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141321 is a reply to message #141320] Sun, 28 August 2011 09:04 Go to previous messageGo to next message
PettyVTX is currently offline  PettyVTX   United States
Messages: 363
Registered: April 2011
Location: Winder Ga.
Karma: 1
Senior Member
Ken
Sounds good to me just let me know
Have Wrench Will Travel
Ted
Ken Henderson wrote on Sun, 28 August 2011 08:53

Ted,

I took them the TC that I first used with a 455 and now with the 500. They
didn't use it because it was not a HD unit, but used one of their cores --
which should have been the same externally, and suitable for either. With
48 years in the business, they should know what they're doing -- maybe the
owner rattling off P/N's without ever looking at a book is misleading. Smile

My experience was the same about pilot bearings. In fact, I'd never even
given any thought to whether the TC extended as far as the end of the crank.
And I still don't know what the fit should be -- I was tempted to take a 4"
grinder and make it fit. Smile

The bolt holes do line up. After discovering the problem and wanting to
confirm it, we mounted the TC to the flex plate and it fit fine except for
that little matter of not going into the crank recess.

If you want to come over, that would be great, and would give you a chance
to look for the parts you need among my inventory. But if it's not
convenient, my son and grandsons plan to return on Wednesday. I hope to be
ready by Monday afternoon. They built this TC in about 3 hours, so it
shouldn't take them long to fix it. Hopefully they can just stick it in a
lathe and turn the hub down 0.010" or so.

I'll give you a call tomorrow after I've been to the TC re-builder's and
know the status.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI+ & EBL
www.gmcwipersetc.com



On Sun, Aug 28, 2011 at 8:06 AM, Ted Petty <PettyVTX@gmail.com> wrote:

>
>
> Wow Ken thata amazing was the TC for a Caddy or olds 455? I guess there is
> a difference in the cranks. I thought the only difference was in the early
> days on a GM motor you had to put a bushing or pilot bearing in the end of
> the crank for a manual trans. but left it out for the TC in a automatic. I
> have pulled TC's out that have rusted to the crank but never had one that
> the pilot shaft or nub was bigger.Unless it was miss aligned during install
> and put a bevel on the end of the TC shaft. Just out of curiosity does the
> bolt holes line up with the flywheel? If you need any help giong back in
> with it let me know.
> Ted
> --
> 75 Avion-----
>
> 75 cosworth Vega Toad
>
> _______________________________________________
> GMCnet mailing list
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> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Ex Avion now looking for a 23' Jeep Wrangler Towd
Re: [GMCnet] Disappointing Day [message #141322 is a reply to message #141319] Sun, 28 August 2011 09:02 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Larry,

Thanks for the offer. These TC folks have been in business for 48 years, so
they should know what they're doing. They're very responsive. We had good
luck with them when Bill Bramlett was here in April building transmissions.
Our first contact with them was when we unexpectedly needed a TC. Called
them at 1 PM, they build the TC, and we picked it up at 5 PM. Similarly,
the one I'm having problems with: I took it to them (40 miles away) at 9:30
AM. The owner called a techician to the office, told him they had a rush
job, and rattled off the number of what to build. I took HER shopping and
to lunch, and picked it up at 1 PM -- they'd been trying to call me since
12:30. I think they'll do whatever's necessary.

Ken H.



On Sun, Aug 28, 2011 at 9:53 AM, Larry <weidnerl@wwt.net> wrote:

>
>
> Sorry to hear of your problems. FWIW, Howard Glenna, John Biwersi, Bob
> Miller and I found a TC rebuilder while walking around the vendors at the
> "Back to the 50's" car show in St. Paul. The man has been in business
> for... IIRC... over 30 yrs. He has sold the business and is working with
> them for the next two years to get them oriented to the business. In the
> mean time some of us are having him build us a TC before he goes full
> retirement. Bob Miller had a TC done for his SP when the one he had started
> making a lot of noise. He took information about the HP and Torque curves of
> the Cad 500 and built it special for that motor. It is installed and Bob is
> VERY happy with it. If you are interested in this rebuilder, and are unable
> to get yours done the way you want, If you can get your TC to Goshen, I
> could transport it to this fella for rebuilding. IF you'd like to talk to
> him, PM me and I'll pass on the info about him. I'll do what I can to help.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141324 is a reply to message #141322] Sun, 28 August 2011 09:19 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
Messages: 7117
Registered: August 2005
Karma: 2
Senior Member
> they should know what they're doing.

You talked to Manny, so I guess you know

but we spent a lot of time ( Manny did and I talked to a AAMCO friend)
to find a TC rebuilder that really knew what he was doing... (and his
dad was better than the son;>)

"There are hidden things like
welded vanes
expanded cases
bearings
3 lug rather than 6

that that make Manny's the best....

(just because we are old, does not make us good ;>)

good luck
gene

--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and -------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Disappointing Day [message #141325 is a reply to message #141320] Sun, 28 August 2011 09:29 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
Messages: 4508
Registered: April 2011
Karma: 39
Senior Member
Ken Henderson wrote on Sun, 28 August 2011 08:53

I was tempted to take a 4" grinder and make it fit.
Its only .006 inches. Emery cloth would do it a whole lot more accurately than a grinder, and days faster than taking it back to the shop.
Re: [GMCnet] Disappointing Day [message #141329 is a reply to message #141325] Sun, 28 August 2011 09:49 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Ken,
Your concern of damaging the pump section of the trans can discarded
as long as the converter was shoved back all the way back, there would
not have damaged that area.
There are but about 25% of the people that check for the converter and
crank hub clearance.
Our shop has been lucky as there have been times we slammed it in
without checking and had no problem.




Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: [GMCnet] Disappointing Day [message #141334 is a reply to message #141324] Sun, 28 August 2011 10:16 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
As soon as I told him the TC had to resist a fuel injected Cad 500 pulling
about 14,000#, he started in on brazed vanes, HD bearings, flanged hub,
etc., etc., so we were on the same frequency. I don't yet know how the hub
came to be too large, but I don't yet suspect them of any incompetence.

Ken H.


On Sun, Aug 28, 2011 at 10:19 AM, gene Fisher <mr.erfisher@gmail.com> wrote:

> > they should know what they're doing.
>
> You talked to Manny, so I guess you know
>
> but we spent a lot of time ( Manny did and I talked to a AAMCO friend)
> to find a TC rebuilder that really knew what he was doing... (and his
> dad was better than the son;>)
>
> "There are hidden things like
> welded vanes
> expanded cases
> bearings
> 3 lug rather than 6
>
> that that make Manny's the best....
>
> (just because we are old, does not make us good ;>)
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141335 is a reply to message #141325] Sun, 28 August 2011 10:18 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
My first impulse was to "get 'er done", but I called Bill Bramlett
immediately & he strongly advised me to take it back and get it fixed right.
He being sort of my mentor, especially on transmissions, I'll do that.

Ken H.



On Sun, Aug 28, 2011 at 10:29 AM, A. <markbb1@netzero.com> wrote:

>
>
> Ken Henderson wrote on Sun, 28 August 2011 08:53
> > I was tempted to take a 4" grinder and make it fit.
> Its only .006 inches. Emery cloth would do it a whole lot more accurately
> than a grinder, and days faster than taking it back to the shop.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141337 is a reply to message #141329] Sun, 28 August 2011 10:29 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Thanks, Jim. I was more than a little worried about that. The TC was
seated to the transmission correctly. Been there, too.

For sure, in the future, I WILL be one of the 25% checking, now that I know
it needs to be checked. Fact is, it had never crossed my mind before to
think about that; I hadn't even considered whether the TC contacted, or
penetrated, the crank. All I did was lay awake worrying all night after
putting in those 3 puny little 5/16" bolts holding the TC to the flex plate
to hold back my Cad 500! :-)

Ken H.


On Sun, Aug 28, 2011 at 10:49 AM, Jim Kanomata <jimkanomata@gmail.com>wrote:

> Ken,
> Your concern of damaging the pump section of the trans can discarded
> as long as the converter was shoved back all the way back, there would
> not have damaged that area.
> There are but about 25% of the people that check for the converter and
> crank hub clearance.
> Our shop has been lucky as there have been times we slammed it in
> without checking and had no problem.
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: [GMCnet] Disappointing Day [message #141342 is a reply to message #141337] Sun, 28 August 2011 11:59 Go to previous messageGo to next message
Mr ERFisher is currently offline  Mr ERFisher   United States
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Registered: August 2005
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Senior Member
Should not be problem with a wimpy cad 500 :)
Gene

FREE WIFI @ Mickey D





On Aug 28, 2011, at 8:29 AM, Ken Henderson <hend4800@bellsouth.net> wrote:

> Thanks, Jim. I was more than a little worried about that. The TC was
> seated to the transmission correctly. Been there, too.
>
> For sure, in the future, I WILL be one of the 25% checking, now that I know
> it needs to be checked. Fact is, it had never crossed my mind before to
> think about that; I hadn't even considered whether the TC contacted, or
> penetrated, the crank. All I did was lay awake worrying all night after
> putting in those 3 puny little 5/16" bolts holding the TC to the flex plate
> to hold back my Cad 500! :-)
>
> Ken H.
>
>
> On Sun, Aug 28, 2011 at 10:49 AM, Jim Kanomata <jimkanomata@gmail.com>wrote:
>
>> Ken,
>> Your concern of damaging the pump section of the trans can discarded
>> as long as the converter was shoved back all the way back, there would
>> not have damaged that area.
>> There are but about 25% of the people that check for the converter and
>> crank hub clearance.
>> Our shop has been lucky as there have been times we slammed it in
>> without checking and had no problem.
>>
>>
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Re: [GMCnet] Disappointing Day [message #141347 is a reply to message #141335] Sun, 28 August 2011 13:09 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
Messages: 4508
Registered: April 2011
Karma: 39
Senior Member
Ken Henderson wrote on Sun, 28 August 2011 10:18

My first impulse was to "get 'er done", but I called Bill Bramlett immediately & he strongly advised me to take it back and get it fixed right.
He being sort of my mentor, especially on transmissions, I'll do that.

Ken H.



ahamilto wrote on Sun, 28 August 2011 10:29

Ken Henderson wrote on Sun, 28 August 2011 08:53

I was tempted to take a 4" grinder and make it fit.

Its only .006 inches. Emery cloth would do it a whole lot more accurately than a grinder, and days faster than taking it back to the shop.

That is the most likely way to get it done right. Not quick and dirty. Can't find fault with that.

[Updated on: Sun, 28 August 2011 13:11]

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Re: [GMCnet] Disappointing Day [message #141402 is a reply to message #141296] Sun, 28 August 2011 18:13 Go to previous messageGo to previous message
mannystrans is currently offline  mannystrans   United States
Messages: 209
Registered: June 2006
Karma: 1
Senior Member
On Sat, Aug 27, 2011 at 8:54 PM, Ken Henderson <hend4800@bellsouth.net> wrote:

> What I discovered was that the recess in the crankshaft, into which the hub
> on the TC seats, is 1.695" ID.  The diameter of the hub on the TC measures
> 1.701".  Hmmmm...

Ken,
Those tolerances are pretty close to what they should be.
The crank hole id seems a little low by .oo5".
You probably have a burr either in the crank hole edge or on the
torque converter hub or both.
You should be able to get the burr out with a deburring tool.

--
Manny Trovao
mannystrans@gmail.com
Manny's Trans / Power Drive
San Jose, California
408-937-1583
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