Propane Tank Hold Down

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Jun 6, 2011
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A PO removed the OEM tank and installed a gas grill tank fitting on the regulator. I have the OEM tank and need to re-install it in the Sequoia.

I don't have any of the mounting hardware.

Is there supposed to be anything under/on top of the plywood to span body framing members, or fender washers on the bottom or what?

Carriage bolts?

I can't tell anything from the CanyonLands, as a PO removed the OEM propane tank from it as well. I can cannibalize the regulator and any other gas
plumbing stuff I need from it, but there are only 4 holes in the bottom of the compartment to hint at what was originally there.

If there is some kind of bracket/hardware above or below the plywood, pictures would be greatly appreciated.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
The tank in my Coachmen upfit was bolted down with four big lag bolts through a flange welded to the base of the tank. I didn't crawl around to see if
any went through to the frame or if they just went into the floor. My suspicion is the GMC fitted coaches probably did it better :p

--
77 Birchaven 23 w/ 455
Reno, NV
 
I will look at my tank tomorrow. It should be what yours was.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Still Loving OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
Well,

I'm really glad it didn't say tomorrow morning.....

The propane tank is mounted with four each sets of hex head bolts down from the top. The only thing that is not just tank and plywood is a pair of
straps that span the bolts where they come through. There is nothing spanning the floor frames in the area. I hope this answers your question, if it
does not, I can try again. My coach is in a warm barn and I am out there frequently these days.

A short word of caution, if you go to upgrade the regulator to a two-stage, seriously consider your reasoning. I did. I also replaced the rubber
line in GP. It has been a major PITA. There is barely room for the two-stage, and making up the hose connection down at the floor is another
adventure because there is not room to get a wrench on the hex or the fitting that penetrates the plywood. My gas detector says I seem to have a leak
there, but I can't make it blow bubbles.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Still Loving OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
That is OEM, there is plywood under it.
If your not comfortable with that, then put in bolt and nut wit washer and
use some blue Loc Tite.

On Thu, Feb 16, 2017 at 11:44 AM, Russell Keith
wrote:

> My propane compartment has aluminum on the floor, but there are just the
> four bolts securing the tank. I don't know if the aluminum is OEM or from a
> PO.
>
> http://www.gmcmhphotos.com/photos/data/7021/medium/LP_Tank.jpg
> --
> Russell Keith
>
> 1978 Eleganza II
>
> Dunedin, Florida
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
> Well,
> I'm really glad it didn't say tomorrow morning.....
>
> The propane tank is mounted with four each sets of hex head bolts down from the top. The only thing that is not just tank and plywood is a pair
> of straps that span the bolts where they come through. There is nothing spanning the floor frames in the area. I hope this answers your question,
> if it does not, I can try again. My coach is in a warm barn and I am out there frequently these days.
>
> A short word of caution, if you go to upgrade the regulator to a two-stage, seriously consider your reasoning. I did. I also replaced the rubber
> line in GP. It has been a major PITA. There is barely room for the two-stage, and making up the hose connection down at the floor is another
> adventure because there is not room to get a wrench on the hex or the fitting that penetrates the plywood. My gas detector says I seem to have a
> leak there, but I can't make it blow bubbles.
>
> Matt
Thanks Matt. Can you guess the width of the straps? I need to buy some stock to fabricate them.

No plans to do anything with the regulator but connect it between the tank and the line. The NO (Next Owner) can decide if he wants to make any
changes.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
Here are some pix of my 73 Canyon-land tank mount. Not much to it but it will give you an idea of the size of the straps.
http://www.gmcmhphotos.com/photos/lp-tank-mounting/p62154-lp-tank-mounting.html
http://www.gmcmhphotos.com/photos/lp-tank-mounting/p62155-lp-tank-mounting.html
http://www.gmcmhphotos.com/photos/lp-tank-mounting/p62156-lp-tank-mounting.html
http://www.gmcmhphotos.com/photos/lp-tank-mounting/p62157-lp-tank-mounting.html
BTW: They are 3/8 cap-screws holding it down.

--
Patti & Jerry Burt
73 Gmc 26' Canyon Lands -
Photos - http://jburt.smugmug.com/GMC-Motorhome
Lots of upgrades but lots to do to make it ours.
Members: FMCA - GMCMI - GMCWS - Pacific Cruisers - 49ers
 
Also do not forget to install the ground wire under the head of one of those bolts. Look at the picture on the previous posting and you will see the
wire installed on the left leg.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
> Also do not forget to install the ground wire under the head of one of those bolts. Look at the picture on the previous posting and you will see
> the wire installed on the left leg.
Thank you Mr. Burton sir! With the attention span of a chicken I would have overlooked that, and I am sure that is a serious safety requirement.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
One bolt. 2 flat washers 1 split washer, 1 nut per corner. When I removed the tank to paint I replaced it all with stainless due to tire kickup zone.
--
John Lebetski
Woodstock, IL
77 Eleganza II
 
Update: Once I knew about the straps, I found a couple hiding in a dark corner of the CanyonLands propane compartment. Along with a correct
regulator.

The tank is in and all loosely fitted and waiting for me to go to the hardware store for some bolts, nuts and washers, plus dig a roll of Teflon tape
out of my plumbing supplies box to plumb it in tight.

In case anyone is interested, it is a bear getting the tank into the compartment of a 23'. Had to remove the fresh water fill tube to get an extra
fraction of an inch in that direction, then finagling and literally prying in two different directions including a 1X4 at the door.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
> Update: Once I knew about the straps, I found a couple hiding in a dark corner of the CanyonLands propane compartment. Along with a correct
> regulator.
>
> The tank is in and all loosely fitted and waiting for me to go to the hardware store for some bolts, nuts and washers, plus dig a roll of Teflon
> tape out of my plumbing supplies box to plumb it in tight.
>
> In case anyone is interested, it is a bear getting the tank into the compartment of a 23'. Had to remove the fresh water fill tube to get an extra
> fraction of an inch in that direction, then finagling and literally prying in two different directions, a 2X4 at the bottom of the back and a 1X4 at
> the front halfway up the door.

Aham,

Sorry, I should have told you about that. I ended up bending the flange at the front of the door. I never have bent it back.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Still Loving OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit
 
When working with propane, should the Teflon tape be yellow?
Should you use Teflon tape?
I don't like it.
It is more of a lubricant than a sealer.
 
Teflon tape at one and a half wraps in the direction of thread AND pipe
sealant paste. No leaks.

Sully
77 eleganza 2
Seattle

> When working with propane, should the Teflon tape be yellow?
> Should you use Teflon tape?
> I don't like it.
> It is more of a lubricant than a sealer.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Yellow?
Most people know how to apply it.

> Teflon tape at one and a half wraps in the direction of thread AND pipe
> sealant paste. No leaks.
>
> Sully
> 77 eleganza 2
> Seattle

>
> > When working with propane, should the Teflon tape be yellow?
> > Should you use Teflon tape?
> > I don't like it.
> > It is more of a lubricant than a sealer.
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
> When working with propane, should the Teflon tape be yellow?
> Should you use Teflon tape?
> I don't like it.
> It is more of a lubricant than a sealer.
>
> https://en.wikipedia.org/wiki/Thread_seal_tape
The joint I took apart had white teflon tape on it. As near as I can tell, the only difference between white and yellow is the thickness: "tape for
gas fittings...is required to be thicker than that for water." And the URL you cited says:

"The tape also works as a deformable filler and thread lubricant, helping to seal the joint without hardening or making it more difficult to tighten,
and instead making it easier to tighten."

I read that" Combining thread-seal tape with a pipe dope compound can...overload threads."

Every joint I need to seal is on the low pressure side, downstream of the regulator. I don't expect it to leak when I am done. I have never failed to
get a leak free connection on joints in propane or natural gas lines. Not always on the first try, but always succeed eventually.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
I have always used Yellow Teflon tape on natural and propane gas fittings because I have it. I do not know if it is required or just a
recommendation. Teflon tape comes in 4 thicknesses and colors:

White - single density
Yellow - double density
Pink - triple density
Green - Quad density


--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
Update to the update: 99% done. Can someone tell me the diameter, length and thread count of the screw that holds the electrical terminal to the
gauge? Of course its missing.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
I am guessing that it is a 6-32 I am not near my coach to check it for sure.
--
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
 
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