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Fuel tank leaks [message #241585]

Wed, 26 February 2014 19:49

WildBill

Messages: 232
Registered: January 2014

Karma: 1

Senior Member

So I'm progressing, chassis / frame pads are in and fuel system is finished. Didn't search to see if this has been addressed before however with the 1/4" frame/chassis isolators falling out there is a lot of pressure on your tank fittings as well as a significant restriction for your fuel hoses. I was replacing all my fuel hoses when I decided the rear tank vent hose should be about 1/2" shorter. Pulling the hose back off the vent barb pulled the tube out of the tank. I would have to say the aluminum sheet and insulation pressing on the fitting broke the solder joint. All fixed now but one of those things you don't need to run into when you are trying to get some results. Better than
Finding about it when it's all back together but I have enough to do.

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Re: [GMCnet] Fuel tank leaks [message #241643 is a reply to message #241585]

Thu, 27 February 2014 10:57

dwayne jacobson[1]

Messages: 345
Registered: July 2009

Karma: 0

Senior Member

Bill guys have used hockey pucks - cut to fit and used as spacers.

Dwayne Jacobson
77 Kingley
www.gmc-cascadeers.com
Look up the schedule for the Route 66 Rollling Rally (paid for
advertisement)

On Wed, Feb 26, 2014 at 5:49 PM, Bill Dolinsky <Wildbillnick@yahoo.com>wrote:

>
>
> So I'm progressing, chassis / frame pads are in and fuel system is
> finished. Didn't search to see if this has been addressed before however
> with the 1/4" frame/chassis isolators falling out there is a lot of
> pressure on your tank fittings as well as a significant restriction for
> your fuel hoses. I was replacing all my fuel hoses when I decided the rear
> tank vent hose should be about 1/2" shorter. Pulling the hose back off the
> vent barb pulled the tube out of the tank. I would have to say the aluminum
> sheet and insulation pressing on the fitting broke the solder joint. All
> fixed now but one of those things you don't need to run into when you are
> trying to get some results. Better than
> Finding about it when it's all back together but I have enough to do.
> --
> Bill Dolinsky
> Edmonton, Alberta, Canada
> 1977 Kingsley TZE167V102169
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
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>

--
Dwayne Jacobson
White Rock BC
Cell: 604-644-8090
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Re: Fuel tank leaks [message #241650 is a reply to message #241585]

Thu, 27 February 2014 11:52

WildBill

Messages: 232
Registered: January 2014

Karma: 1

Senior Member

I just went to a local rubber place and bought 10' of 5/8" X 4" for a little under $60 and then cut into 6" pieces at work on our metal band saw chop saw.
I built a 6" body lift kit for a 76 ford 3/4 ton 4 X 4 I built once and used hockey pucks on the ends, worked fine. Actually I can't see a problem using uncut hockey pucks on the gmc for another 1/4".

The coop has a great price on pads but didn't want to have to wait for shipping.

[Updated on: Thu, 27 February 2014 13:05]

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Re: [GMCnet] Fuel tank leaks [message #241660 is a reply to message #241650]

Thu, 27 February 2014 13:46

Jp Benson

Messages: 649
Registered: October 2011
Location: Fla

Karma: 2

Senior Member

Bill,

Check this link.
http://www.gmcmhphotos.com/photos/frame/p50839-7-8-quot-body-lift-ki.html

I milled the pucks 1/8 inch to match the new isolators. Also added 3/8"
to the isolator mount plates. The rough surface on the milled side of
the puck worked much better with the 3M super weatherstrip adhesive as
shown here.

http://www.gmcmhphotos.com/photos/body-support/p51542-hundred-pounds.html

Not sure what you're up to but raising the body can stress/break other
things that are connected between body and frame.

JP

On 2/27/2014 12:52 PM, Bill Dolinsky wrote:
>
> I just went to a local rubber place and bought 10' of 3/4" X 4" for a little under $60 and then cut into 6" pieces at work on our metal band saw chop saw.
> I built a 6" body lift kit for a 76 ford 3/4 ton 4 X 4 I built once and used hockey pucks on the ends, worked fine. Actually I can't see a problem using uncut hockey pucks on the gmc for another 1/4".

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Re: Fuel tank leaks [message #241668 is a reply to message #241585]

Thu, 27 February 2014 15:21

WildBill

Messages: 232
Registered: January 2014

Karma: 1

Senior Member

Yeah I just went with what the 5/8" everyone else seems to be doing. In my case that's 3/8" thicker than I had. Only thing left between chassis and frame is brake lines, steering shaft and wiring. Nice looking setup!

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Re: [GMCnet] Fuel tank leaks [message #241681 is a reply to message #241660]

Thu, 27 February 2014 16:50

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

JP,

The kit is interesting; I assume you put it together with parts you obtained from various sources and customized it to your
requirements.

I am a bit confused. I looked through this album

http://www.gmcmhphotos.com/photos/g6479-body-support.html

From what I saw the hockey pucks are 1/2" high and you added 3/8" to the front and rear donuts.

How did you determine those measurements?

The replacement donuts appear to be made out of Urethane, am I right? If yes where did you get it?

Regards,
Rob M.
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jp Benson

Bill,

Check this link.
http://www.gmcmhphotos.com/photos/frame/p50839-7-8-quot-body-lift-ki.html

I milled the pucks 1/8 inch to match the new isolators. Also added 3/8"
to the isolator mount plates. The rough surface on the milled side of
the puck worked much better with the 3M super weatherstrip adhesive as
shown here.

http://www.gmcmhphotos.com/photos/body-support/p51542-hundred-pounds.html

Not sure what you're up to but raising the body can stress/break other
things that are connected between body and frame.

JP

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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

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Re: [GMCnet] Fuel tank leaks [message #241735 is a reply to message #241681]

Fri, 28 February 2014 00:20

burtco99

Messages: 31
Registered: September 2007
Location: Montreal

Karma: 0

Member

Rob,
A while ago someone sent me some part numbers for a Ford bushing that will work to replace the body mount bushings. I am unable to find the info I was given, but I beleive that the bushings from an '80s era F150 pick-up front track rod are very close. I have a set of them stored in my coach that I plan on comparing to the originals when I put my coach back on its frame this coming summer.

Hopefully JP will confirm the application.

Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress

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Re: [GMCnet] Fuel tank leaks [message #241770 is a reply to message #241735]

Fri, 28 February 2014 12:09

GMC_LES

Messages: 569
Registered: October 2009
Location: Montreal

Karma: 0

Senior Member

Rob,
Just dug through my mess of parts and found the bushings i have. They are MOOG K8361 and the application is Ford radius arm bushings on mid and full size trucks (Ranger Explorer, & F150-350) mid 80s to late 90s.

This part number was provided to me from a reputable GMCer that has successfully used them on his coach after doing some minor alterations to them. I would assume that the equivalent urethane from Energy Suspension would also work with minor alterations, but i wonder about the increased stiffness causing problems.

Les Burt
Montreal
1975 Eleganza 26ft
A work in Progress

On Feb 28, 2014, at 1:20 AM, Les Burt <lburt@videotron.ca> wrote:

Rob,
A while ago someone sent me some part numbers for a Ford bushing that will work to replace the body mount bushings. I am unable to find the info I was given, but I beleive that the bushings from an '80s era F150 pick-up front track rod are very close. I have a set of them stored in my coach that I plan on comparing to the originals when I put my coach back on its frame this coming summer.

Hopefully JP will confirm the application.
--
Les Burt
Montreal
'75 Eleganza project
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Les Burt Montreal 1975 Eleganza 26ft A work in Progress

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