Propane Tank

tmaki1

New member
Aug 25, 1999
462
0
0
T,

I know the feeling.

Now that I know you've got a 23', I might be able
to offer a suggestion or two. I've got an early
1973 23' Glacier on which I'm redoing the tank
and compartment.

My compartment is made of wood and was
"lined" with some kind of terribly deteriorated
black foam. So if yours is similar, and you're
positive the tank is completely empty:

1. If you haven't already, try to figure out some
way to keep that confounded door up and out of
the way. That will reduce both the width and
length of the blue streak accompanying this task.

2. If you can, remove the main, overfill, and fill
valves. This will help to give you some
clearance for a later step. If you are going to
replace them anyways, it won't hurt to bugger
them up. They are in there really tight, and you
may not have the leverage, but give it a try. If it
just doesn't work out for you, leave them. The
tank should come out with them installed.

3. Remove the regulator from the main valve (if
you haven't already) and if you can, disconnect
the main supply hose from the fitting in the
bottom of the compartment. This will be one
less thing to get in your way. Wrap duct tape or
electrical tape over the exposed open fittings on
both the regulator and compartment fittings.
This will help to keep schmutz out of the
regulator and gas lines. Lay regulator aside. If
you're going to replace the regulator with a new
two-stage unit (highly recommended) and hose
assembly, go ahead and toss them, but not
before you actually have the new components in
your possession and you know they are going
to fit.

4. To get the tank out, push it as far back into
and backward in the compartment as you can.
Pull the forward end of the tank toward the
opening (kind of angled in the hole), and with
both hands (and possibly the hands of someone
else) roll the tank toward you so that the valves
rotate downward and the mounting
feet/brackets rotate upward while at the same
time pulling the tank out through the hole. It's
sort of like "unscrewing" it out of the
compartment (best way I can describe it). Turn it
right over if you have to. You may have to keep
rolling it over and back on the way out for it to
clear. Once I figured how much and how far to
roll tank after a couple of tries, it came right out.
Total time from start (after removing mounting
bolts) to finish -- about 5 minutes, although I
didn't remove valves. Be aware though that the
tank is kind of awkward and heavy even though
it doesn't seem like it when it's in the
compartment. When it comes out, it's going to
fall in your lap or on your foot. Just be sure to
have a good grip and expect about 65 lbs worth
of weight.

(I had mine sandblasted and repainted
anticipating installing new valves. Manchester
Tank (one of our suppliers) will sell me a new
tank with new code-approved valves for about
$130, so I'll probably do that instead of putting
the old one back in. I have to send them pix of
my old one and they'll match up to something or
will build to suit. The mounting arrangement is
the only thing I want to preserve.)

Replacement should be the reverse of removal.
If you line the compartment with something, it
may be a little tighter getting it back in, and
you'll probably scar up a new paint job on the
tank, but it will work.

You may have tried all this already without
success. In that case, you may have to cut part
of the compartment (ouch!) a little for clearance
or resort to other drastic measures.

BTW, you may wind up getting a new tank
anyways. Rob Reifschneider of Manchester
mentioned to me that some LP fill stations will
not fill a tank on which they can't read the data
plate. Mine was rusted to the point that the only
way I could read it was to clean it off the best I
could and then hold a piece of white paper over
it and rub a pencil over the surface and create
sort of a negative image of the stamping(s). It's
readable, but barely. I got the dimensions of the
tank (30 X 12), the manufacturer (Brunnell of
Indiana) and some other data. Just a heads up
that a refinished tank may raise an issue at fill
time, depending on where you get it filled.
Reifschneider tells me that regulations are
getting stricter, and LP fill stations aren't
interested in fines or lawsuits resulting from
filling substandard tanks.

Hope this helps.

Toby Maki
73 Glacier 230

From: TStier1986
Date sent: Sat, 30 Oct 1999 23:13:47 EDT
Subject: Re: GMC: Propane Tank
To: gmcmotorhome
Send reply to: gmcmotorhome

> For 2 Days I' ve been trying to remove my propane tank from its compartment
> to clean up the area and do some corrosion control on the tank. Seems like
> they put a 3 foot piece of equipment into a 2 foot space. Any ideas on how
> to remove it without taking off the chasis? I can live with what I got but
> am curious has to how they got it in there in the first place. Talk about
> f---ing a football. Any ideas are appreciated. T. Stier Canyon Lands
> TZE033V101851
>
 
Snip.......

>1. If you haven't already, try to figure out some
>way to keep that confounded door up and out of
>the way. That will reduce both the width and
>length of the blue streak accompanying this task.
>
>2. If you can, remove the main, overfill, and fill
na) and some other data. Just a heads up
>that a refinished tank may raise an issue at fill
>time, depending on where you get it filled.
>Reifschneider tells me that regulations are
>getting stricter, and LP fill stations aren't
>interested in fines or lawsuits resulting from
>filling substandard tanks.

Snip........

>Hope this helps.
>
>
>Toby Maki
>73 Glacier 230

This is the beauty of this Net. GMCrs helping GMCrs thru their
experience. Wish I had the Net with my first GMC ('75-'85)!

David Lee Greenberg F22009
GMC Motorhome Registry
200 MacFarlane Drive PH4
Delray Beach, FL 33483-6829
NEXTEL Mobile: 561-262-0233
 
There are 2 tanks that were used in the GMC. The smaller one holds
44.5# of propane @ 80% fill. (about 7 gal in size). The larger one is
42" long and holds 62# of propane @ 80% fill. (about 10 gal in size).
Both of these are ASME tanks and are not subject to DOT regs on valve
changeout.

J.R. Wright

>
> Dear Arch: Really don't know what I have other than what was there from the
> PO. The tank says 49 lbs & I guess this is the weight after filled. I would
> speculate that it is an 18 gallon propane tank but can't decipher the
> imprinted info due to corrosion. Did see a web page on an R&R of the tank
> and that is where I got the idea to redo my compartment so I guess it was
> yours. I think I could have forced it out but then wondered how to get it
> back in so just left it alone after several hours of trying. Thought about
> going inside the coach and removing some panels to allow for more tank
> movement but like I said I can live with what I got. The longer I own this
> thing the more I realize how little I know. Never was an engineer but do
> enjoy tinkering and am enjoying tailgating at weekend football games and the
> beach. T. Ster
 
Propane weighs ~1# per liter. A 44# tank actually holds about 11.6
gallons and the 65 # tank holds about 17 gallons of propane. These
numbers have been changed to americanese as the Canadian gallon is
larger. Most things are larger in Canada. The country, personal debt,
bills for GM parts, taxes. So on and so on. I used the Canadian # as the
basis for the measurement. Your numbers may vary. Darren

>
> There are 2 tanks that were used in the GMC. The smaller one holds
> 44.5# of propane @ 80% fill. (about 7 gal in size). The larger one is
> 42" long and holds 62# of propane @ 80% fill. (about 10 gal in size).
> Both of these are ASME tanks and are not subject to DOT regs on valve
> changeout.
>
> J.R. Wright
>

> >
> > Dear Arch: Really don't know what I have other than what was there from the
> > PO. The tank says 49 lbs & I guess this is the weight after filled. I would
> > speculate that it is an 18 gallon propane tank but can't decipher the
> > imprinted info due to corrosion. Did see a web page on an R&R of the tank
> > and that is where I got the idea to redo my compartment so I guess it was
> > yours. I think I could have forced it out but then wondered how to get it
> > back in so just left it alone after several hours of trying. Thought about
> > going inside the coach and removing some panels to allow for more tank
> > movement but like I said I can live with what I got. The longer I own this
> > thing the more I realize how little I know. Never was an engineer but do
> > enjoy tinkering and am enjoying tailgating at weekend football games and the
> > beach. T. Ster

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
Hi stranger

Who did your new Logo ??? I think it is cool.

I also liked the things to come.
gene

>Propane weighs ~1# per liter. A 44# tank actually holds about 11.6
>gallons and the 65 # tank holds about 17 gallons of propane. These
>numbers have been changed to americanese as the Canadian gallon is
>larger. Most things are larger in Canada. The country, personal debt,
>bills for GM parts, taxes. So on and so on. I used the Canadian # as the
>basis for the measurement. Your numbers may vary. Darren
>

>>
>> There are 2 tanks that were used in the GMC. The smaller one holds
>> 44.5# of propane @ 80% fill. (about 7 gal in size). The larger one is
>> 42" long and holds 62# of propane @ 80% fill. (about 10 gal in size).
>> Both of these are ASME tanks and are not subject to DOT regs on valve
>> changeout.
>>
>> J.R. Wright
>>

>> >
>> > Dear Arch: Really don't know what I have other than what was there
from the
>> > PO. The tank says 49 lbs & I guess this is the weight after filled.
I would
>> > speculate that it is an 18 gallon propane tank but can't decipher the
>> > imprinted info due to corrosion. Did see a web page on an R&R of the
tank
>> > and that is where I got the idea to redo my compartment so I guess it was
>> > yours. I think I could have forced it out but then wondered how to get it
>> > back in so just left it alone after several hours of trying. Thought
about
>> > going inside the coach and removing some panels to allow for more tank
>> > movement but like I said I can live with what I got. The longer I own
this
>> > thing the more I realize how little I know. Never was an engineer but do
>> > enjoy tinkering and am enjoying tailgating at weekend football games
and the
>> > beach. T. Ster
>
>--
> Darren Paget
> 76 Experimental
> Another Fab Day
> paget
> http://www.TZEplus.com
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/
 
Arch,
The 80% fill refers to the level at the vapor vent that is located above
and next to the liquid fill valve that you open when filling the tank.
Has nothing to do with the newer style valves.

J.R. Wright

>
> In a message dated 10/31/1999 8:49:32 AM Central Standard Time,

>
> > Both of these are ASME tanks and are not subject to DOT regs on valve
> > changeout.
>
> John
>
> I am going to add my .02 here again. I know I live in a little hick
> town but the propane people here are very good at what they do.
> When I redid mine they told me not to worry about the new valve
> regulations Just as you stated it. Next they told me that an 80%
> valve cannot be installed on our tanks. Here in the boondocks we
> have always had a problem filling the 500 gallon tanks in the
> summer because the tanks would get to hot. About 8 or 9 years
> ago they came out with a new tank design called a top fill tank.
> When the propane is added to the tank the liquid is sprayed on the
> sides of the tank on the inside. This cools the tank as it is filled.
> You dont have the overheating problem. Guess what-- when we tore
> my GMC tank down-----it uses the same top fill system as our
> new 500 gallon tanks do. The manager of the propane place was
> very surprised to see this system used in a 20 year old tank. Once
> again we were way ahead of our time. The problem is that where
> the gas goes into the tank is not just a hole but a pipe that feeds
> the gas up to the top of the tank. So you cant just put a float
> valve in there and shut off the flow the way you can on most tanks.
> I am not saying this guy knows everything there is to know about
> propane but he has kept me alive for 30 years so I do trust what
> he has to say.
>
> Take Care
> Arch
 
Not saying your guy is wrong Arch, but maybe a second opinion. I have a
stop fill valve mounted in my OEM tank. It was installed previous to my
ownership. It is there and it does work. Maybe different manufacturers
or something. Darren

>
> In a message dated 10/31/1999 10:51:13 AM Central Standard Time,

>
> > Arch,
> > The 80% fill refers to the level at the vapor vent that is located above
> > and next to the liquid fill valve that you open when filling the tank.
> > Has nothing to do with the newer style valves.
> >
> JR
>
> I agree that the 80% vapor vent does not have anything to do
> with the new valves. However new valves shut off the propane
> flow at the same 80% level. The problem is that we cant get
> the float for the new valves into our tanks.
>
> Take Care
> Arch

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
GMC same year as yours. They should be the same. I would be amazed if GM
used differently manufactured tanks for different models. I have been
wrong a couple of times before though. Darren

>
> In a message dated 10/31/1999 1:10:42 PM Central Standard Time,

>
> > It is there and it does work. Maybe different manufacturers
> > or something
> Darren
>
> Is yours a transmode or GMC finish.
>
> Take Care
> Arch

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
Most welcome. Glad to know you didn't have to
use any more embarrassing language than
necessary : )

The external fresh water fill is a project on my
list. How did you handle it? Make a new
opening in body with new door? etc.? Did it turn
out as you expected?

Later.

TMaki
73 Glacier 230



From: TStier1986
Date sent: Sun, 31 Oct 1999 11:32:16 EST
Subject: Re: GMC: Propane Tank
To: gmcmotorhome
Send reply to:
gmcmotorhome

> Toby: Thanks for the information. I got to the point in the removal process
> where I could have gotten the tank out but decided it wasn't worth pulling
> out and going through the re-installation fiasco. All the valves are in good
> condition and look as if they were recently replaced by the PO ( I've owned
> the coach for about a year). I wanted to clean up the tank & compartment but
> came to the same conclusion about scratching a newly repainted tank during
> the re-installation so I'm going to leave it in. I did make one change while
> screwing around back there in that I made an external connection for my fresh
> water fill access. Now I won't have to lift the access door to fill my fresh
> water tank. Thanks again for your info. Ted Stier
>
 
Looks the same to me, but my tank compartment wasn't that bad when I
started. Good job man. Darren

>
> In a message dated 10/31/1999 1:30:55 PM Central Standard Time,

>
> > GMC same year as yours. They should be the same. I would be amazed if GM
> > used differently manufactured tanks for different models. I have been
> > wrong a couple of times before though. Darren
> >
> Darren
>
> Do you have the big tank or the small one? You can look on
> Patrick's page to see mine. Is it the same as yours? Got to
> get to the bottom of this.
>
> Take Care
> Arch

- --
Darren Paget
76 Experimental
Another Fab Day
paget
http://www.TZEplus.com
 
I'm looking to replace my propane tank (actually the PO got rid of it) with
a much smaller tank (and perhaps in another location). Does anybody know a
dealer who is very familiar with the Manchester line of tanks or do you
have a recommendation of a tank to look at. I'd like something half the
size of the GMC tank (the same length would be fine).

Vic
 
I've been wondering about the capacity. Here's something that I cut out of
a data base I use to keep track of my GMC pertaining to propane. According
to my figures the capacity of the big tank is closer to 12 gallons.

11-10-98 (TUESDAY 11:13 AM) filled the LP tank [was empty]
with 13 gals of propane..wondered about that...the tank has a
capacity of 62.0 lbs according to owners manual....the max fill
is 80% of 62.0 which is 49.6 lbs...propane weighs 4.24 lbs/gal
and that ends up being 11.7 gals. SO either they overfilled
the tank [U-Haul in Madison Heights], or over charged me....
Each propane gallon makes 36.6 cubic feet of gas and the
each ft3 of propane has 2,500 Btus...natural gas only has
1,000 Btus per cubic foot.
Richard Waters '76 PB, Troy, MI

> There are 2 tanks that were used in the GMC. The smaller one holds
> 44.5# of propane @ 80% fill. (about 7 gal in size). The larger one is
> 42" long and holds 62# of propane @ 80% fill. (about 10 gal in size).
> Both of these are ASME tanks and are not subject to DOT regs on valve
> changeout.
>
> J.R. Wright
>
 
>
>
> Chalk up one for the co-pilot. She has been complaining for a year that she
> smelled propane. I said, naw, no way. Then a couple weeks ago I checked my
> propane level and it was 30% Yesterday I checked and it was empty and we
> hadn't used any. Went to the propane depot and the problem was the fill
> valve. It had always been a bit stubborn to cut off after they
> disconnected, but each time they pronounced it OK. Now I have a new fill
> valve and hopefully won't waste any more gas.

Hi Justin!

Was wondering how serious this was to replace. Noticed this same thing
I think. I am glad you didnot blow up with a loss of several gallons in
just a day or two. I have an odor I assumed might be do to overfill of
the tank as the problem was worse on refill. I leak tested everything
without finding anything. Tightening the filler cap made the problem
(smell) go away however. This makes me think its the fill valve. Did
your propane dealer replace the valve for you? Thanks, walter bright, 76
GB.
 
Walter:

I had a fill valve problem last year. Propane dealer said that our vintage
valve has a sealing problem and that current style valve fixes that
condition. It wasn't very expensive, < $30.00 for parts and labor as I
recall.

The valve is made out of flimsey material and has a square flange, with a
bolt hole in each corner to secure it to the tank. Shortly after replacing,
one of the flange ears broke. However, stopped back this Spring at the
dealer and had them check it but they didn't find anything leaking. Told me
they would order a replacement and to come back after I used up the tank,
which I did just prior to going to Forest City.

They replaced the broken one at no charge. So the moral of the storey is let
your dealer do the work in this instance.

Paul Bartz

From: wtb58
Sent: 11/1/99 5:53 PM


Chalk up one for the co-pilot. She has been complaining for a year
that she
> smelled propane. I said, naw, no way. Then a couple weeks ago I
checked my
> propane level and it was 30% Yesterday I checked and it was empty and
we
> hadn't used any. Went to the propane depot and the problem was the
fill
> valve. It had always been a bit stubborn to cut off after they
> disconnected, but each time they pronounced it OK. Now I have a new
fill
> valve and hopefully won't waste any more gas.

Hi Justin!

Was wondering how serious this was to replace. Noticed this
same thing
I think. I am glad you didnot blow up with a loss of several gallons in
just a day or two. I have an odor I assumed might be do to overfill of
the tank as the problem was worse on refill. I leak tested everything
without finding anything. Tightening the filler cap made the problem
(smell) go away however. This makes me think its the fill valve. Did
your propane dealer replace the valve for you? Thanks, walter bright, 76
GB.
 
>
> Walter:
>
> I had a fill valve problem last year. Propane dealer said that our vintage
> valve has a sealing problem and that current style valve fixes that
> condition. It wasn't very expensive, < $30.00 for parts and labor as I
> recall.

Hi Paul! Thanks. Arch, you too! As Arch says, the power of this venue
is great. walt. 76 GB now with about 10,000 more miles on it then in
April 99.