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| Re: [GMCnet] How are the Black tank support bolts connected to the body? [message #289961 is a reply to message #289958] |
Wed, 04 November 2015 23:40   |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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The tank is held by a ling fender bolt that comes through the floor.
Might be easier to attach a long bolt to the cross section and extend the
original beam or bolt it to the cross beams.
On Wed, Nov 4, 2015 at 9:20 PM, W R WARN wrote:
> The bolts that hold the black tanksupports – how are they attached at the
> top? The bolts and nuts are badly rusted and look like they will not take
> anytorque, and I am sure they will need to be replaced. I do not need to
> drop the tank, all I want to do is brace the tank and remove the
> supportslong enough to straighten them.
> Thanks,Jim
> 1976 Eleganza
>
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] How are the Black tank support bolts connected to the body? [message #289975 is a reply to message #289958] |
Thu, 05 November 2015 08:29 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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on my 75 they were a long carriage bolt, that went through the floor. I had to cut my carpet and pull the bolt up through the floor on the inside. the carpet hid the cut, but still the bolt head was under the carpet.
when i re-carpeted, I took the time to install new bolts, so hopefully do not have that problem again.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] How are the Black tank support bolts connected to the body? [message #289984 is a reply to message #289958] |
Thu, 05 November 2015 10:29 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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W R WARN wrote on Wed, 04 November 2015 23:20The bolts that hold the black tanksupports how are they attached at the top? The bolts and nuts are badly rusted and look like they will not take anytorque, and I am sure they will need to be replaced. I do not need to drop the tank, all I want to do is brace the tank and remove the supportslong enough to straighten them.
Thanks,Jim
1976 Eleganza
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Jim,
As said, long carriage bolts through the floor. The tank is mounted to the body structure and not the chassis structure.
The body is designed to floats on the chassis with 8 flexible anchor points. You will end up with cracks and leaks, if the tank is mounted in any way to create
stresses to the tank and plumbing.
Get galvanized bolts, or use good paint to coat the bolts.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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| Re: [GMCnet] How are the Black tank support bolts connected to the body? [message #290005 is a reply to message #289995] |
Thu, 05 November 2015 20:26 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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Larry wrote on Thu, 05 November 2015 13:28My tanks are attached with 10, 1/4" self tapping hex screws that have a body/fender washer under the head. Screwed into the Aluminum body bracing. Looks like they were put that way from the factory.
Larry,
Royale by Coachman may be a little different then the GM upfitted. Not too familiar with Coachman design work.
On my coach (Glenbrook) the bolts go through the floor alum members, but the heads are sunk into the top of the floor plywood.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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| Re: [GMCnet] How are the Black tank support bolts connected to the body? [message #290017 is a reply to message #290008] |
Fri, 06 November 2015 00:42 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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WR,
i stand corrected.
We have been doing it this way and have lucked out as we support the tank
just enough to keep enough pressure on the mid section of the tank.
I will be doing it correctly to avoid problems.
Thank you for bringing this up.
On Thu, Nov 5, 2015 at 6:42 PM, Dennis Sexton wrote:
> W R WARN wrote on Wed, 04 November 2015 23:20
>> The bolts that hold the black tanksupports how are they attached at the
> top? The bolts and nuts are badly rusted and look like they will not
>> take anytorque, and I am sure they will need to be replaced. I do not
> need to drop the tank, all I want to do is brace the tank and remove the
>> supportslong enough to straighten them.
>> Thanks,Jim
>> 1976
>
>
> Here is a photo of the carriage bolt and a support stringer on my 73. The
> head of the bolt is slightly sunk into the floor (no
> http://www.gmcmhphotos.com/photos/73-painted-desert-230/p50934-00815.html
>
> Dennis
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
>
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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