GMC Motorhome Digest V1 #103

chuck will

New member
Nov 18, 1997
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RE: Gas tanks and leaks. Golby also has the kit as does several other GMC
houses. Strongly recommend dropping the tanks and replacing the filters (sock)
and all the rubber hoses. The filler hose can be reached very easily by undoing
the inner fender on the driver side. It will remove quite easily and allows
access to the hose that should be replaced. The "T" hoses down the side to the
tanks are not too hard to install. I learned that by dropping the tank straps
bolts in the front the tank will lower quite easily (EMPTY) and allows you to work
on the tank. The same for the rear tank. I did one tank at a time Probably what
is leaking is the small return hose (vent) that goes to the closed canister up
front. That is the one that let go for me. By overfilling the gas started to run
on the ground. To get home and not have to repair on the road. When the gas
quit running I just never filled it clear up. $20.00 at a wack. More stops but
safer. .

> GMC Motorhome Digest Wednesday, February 25 1998 Volume 01 : Number 103
>
> In this issue of the GMC Motorhome List Digest:
>
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> Re: GMC: Propane Fuel Gauge
> GMC: Fuel Leakage
> GMC: PHIL,S GAS
> Re: GMC: PHIL,S GAS
> Re: GMC: Fuel Leakage
> GMC: Re: Fuel Leakage
> Re: GMC: Fuel Leakage
>
> To post to the GMC Motorhome List, send
> email to gmcmotorhome
>
> ----------------------------------------------------------------------
>
> Date: Tue, 24 Feb 1998 14:17:00 EST
> From: ELUBO
> Subject: Re: GMC: Propane Fuel Gauge
>
> Unfortunate for me. The guage did not break electrically, it broke
> physcially. The hands just fell to the bottom, the cermaic outside case
> cracked and wouldn't hold in place.. The outside of my guage measures exactly
> 2 inches.
>
> OK GMCers, where could we get such a guage.
>
> elubo
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 11:41:13 -0811
> From: Scott Woodworth
> Subject: Re: GMC: Propane Fuel Gauge
>
> Here's the URL of a company that makes a whole new GMC monitor panel.
> It's digital and looks pretty nice from their photograph.
>
> http://www.l-n.com/cdecorp/
>
> - -Scott Woodworth
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 16:58:25 EST
> From: CHill113
> Subject: Re: GMC: Propane Fuel Gauge
>
> Seems someone mentioned recently on this page that a man was "parting out" a
> GMC coach. If you can find who that was, he might have a gauge.
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 17:21:03 EST
> From: ELUBO
> Subject: Re: GMC: Propane Fuel Gauge
>
> Thank you,
>
> elubo
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 17:23:17 EST
> From: ELUBO
> Subject: Re: GMC: Propane Fuel Gauge
>
> We have a panel above the kitchen with all instruments in it. Batteries,
> Propane,
> Generator on/off, Extra kick for Generator on/off and water pump.
>
> Thanks for the response.
>
> elubo
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 15:39:35 -0811
> From: Scott Woodworth
> Subject: Re: GMC: Propane Fuel Gauge
>
> The coach that is being parted out had burnt. The message said that
> there was no body, just a frame.
>
> - -Scott Woodworth
>
> ------------------------------
>
> Date: Wed, 25 Feb 1998 00:48:28 +0000
> From: John Szalay
> Subject: Re: GMC: Propane Fuel Gauge
>

> >The coach that is being parted out had burnt. The message said that
> >there was no body, just a frame.
> >
> >-Scott Woodworth
> >
> >
> >
>
> I found the posting, it was forwarded by Patrick and the post
> stated that is was a transmode, and that it was an all or nothing sale
> he was not selling parts. can repost if someone needs it.
>
> John & Brenda Szalay
> 73 GMC
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 19:25:14 -0800
> From: Phil Swanson
> Subject: GMC: Fuel Leakage
>
> Hello Fellow GMCers,
>
> A couple of weeks ago, I pulled my 23' 73 Canyon Lands into a gas
> station and filled it for the first time since I bought it about 8 weeks
> ago. To my surprise, as it neared the full point, gas started flowing
> all over the ground. At first I didn't see it, the attendant came
> running up to me yelling that I was spilling gas all over the place. I
> started it anyway and moved it out of the way and left it parked while I
> did some other shopping at our local Costco here in the San Diego area
> (Bonita). I just wondered if anyone else has had this problem. I figure
> that the rubber fuel line connectors are shot because once it leaked a
> couple of gallons, it stopped and all appeared okay. I figure that age
> just got to the rubber hoses between the filler neck and the tank.
> Anyone else had this problem? And if so, was it a major job to change
> the rubber connectors. I have the maintenance manual but it's hard to
> tell from the pictures. Any information would be appreciated. It seems
> like a corrective action here could also save a coach or two from going
> up in fire too. I hope I don't have to drop those two big tanks.
>
> Thanks (I won't say in
> advance, that's a worn out phrase) , Phil
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 21:18:09 -0800
> From: Marilyn & Arden Sniffen
> Subject: GMC: PHIL,S GAS
>
> Phil, similar happened to me with fuel on my first fill when I was
> about to drive my new purchase home from Cottonwood Az. Fuel went
> everywhere then slowed to a slow drip. All the fuel line past a last
> repair was very dry and brittle. One more quick stop at a parts store
> for another temporary repair and down the road to San Diego. Looks like
> I,ve got to drop my back tank to get to the rest of the bad line. By the
> way did you by your rig of an older gent in Poway with a Sea Breeze??
>
> ------------------------------
>
> Date: Tue, 24 Feb 1998 23:44:53 -0811
> From: Scott Woodworth
> Subject: Re: GMC: PHIL,S GAS
>
> Cinnabar has a kit of parts to replace all of those troublesome old
> parts with fresh ones. It seems that the ethanol in today's gasoline
> makes them start to leak.
>
> - -Scott Woodworth
>
> ------------------------------
>
> Date: Wed, 25 Feb 1998 09:33:17 -0500
> From: Zachary Zehnacker
> Subject: Re: GMC: Fuel Leakage
>
> On our GMC, it turned out to be the fitting where the vent lines go in at
> the top of the tanks. The fitting is angled up a little and apparently
> hits the plywood floor when the tank is installed. Ours was broken on the
> rear tank so that the fitting was very loose in the tank and allowed gas to
> leak out. Once the tank got completely filled, gas would leak out of this
> fitting at the top of the tank. Unfortunately, there is no way to check or
> fix this without dropping the tank unless you try filling the tank and
> seeing if it is leaking from the top. Ours did this for several years and
> we never had any problems with it. The leak also told us when our tanks
> were full :). We have just fixed the fitting this winter by soldering it
> back in (be careful with the gas vapors if you attempt this). We have not
> yet filled the tanks to try it out, but we are pretty sure this will fix
> our problem.
> We have also made an indentation on the floor with a router so that the
> fitting does not have any more clearance problems.
>
> Zachary Zehnacker
>
>
> ------------------------------
>
> Date: Wed, 25 Feb 1998 06:25:03 -0600
> From: "Chuck Blanford"
> Subject: GMC: Re: Fuel Leakage
>
> Phil
>
> I had the same problem with my 77 Kingsley. I dropped both fuel tanks and
> replaced all fuel lines. Their was a loose hose on the rear tank; the
> clamp was actually laying on top of the tank. When filled or parked on an
> incline, the fuel would flow from this open vent fitting until the level
> dropped. Very disconcerting at the service station. The tanks are not
> that difficult to drop. I raised the entire coach and then lowered the
> tanks onto my "creeper", rolled them out to clean up, replaced all fuel
> lines from the tanks to the fuel pump, and now fuel up with peace of mind!
>
> Chuck
>
> - ----------
> > From: Phil Swanson
> > To: gmcmotorhome
> > Subject: GMC: Fuel Leakage
> > Date: Tuesday, February 24, 1998 9:25 PM
> >
> > Hello Fellow GMCers,
> >
> > A couple of weeks ago, I pulled my 23' 73 Canyon Lands into a gas
> > station and filled it for the first time since I bought it about 8 weeks
> > ago. To my surprise, as it neared the full point, gas started flowing
> > all over the ground. At first I didn't see it, the attendant came
> > running up to me yelling that I was spilling gas all over the place. I
> > started it anyway and moved it out of the way and left it parked while I
> > did some other shopping at our local Costco here in the San Diego area
> > (Bonita). I just wondered if anyone else has had this problem. I figure
> > that the rubber fuel line connectors are shot because once it leaked a
> > couple of gallons, it stopped and all appeared okay. I figure that age
> > just got to the rubber hoses between the filler neck and the tank.
> > Anyone else had this problem? And if so, was it a major job to change
> > the rubber connectors. I have the maintenance manual but it's hard to
> > tell from the pictures. Any information would be appreciated. It seems
> > like a corrective action here could also save a coach or two from going
> > up in fire too. I hope I don't have to drop those two big tanks.
> >
> > Thanks (I won't say in
> > advance, that's a worn out phrase) , Phil
> >
>
> ------------------------------
>
> Date: Wed, 25 Feb 1998 12:28:11 -0811
> From: Scott Woodworth
> Subject: Re: GMC: Fuel Leakage
>
> > On our GMC, it turned out to be the fitting where the vent lines go
> in at the top of the tanks. The fitting is angled up a little and
> apparently hits the plywood floor when the tank is installed.
>
> Zachary,
>
> From reading the part in your letter about how you had to router an
> area out for clearance leads me to suspect that your body to frame
> insulator strips are missing. These insulator strips act as body mounts
> to hold the middle section of the coach body up off the frame. Many
> times, these strips shrivel and fall out over the years leaving the body
> unsupported in this area. If your body mounts have failed, the symptoms
> may include: Air cleaner lid rubbing the underside of the engine cover,
> air lines being pinched and other things of that nature. Take a look at
> these areas and look for the air line in the rear that runs between the
> frame and floor and you'll see what I mean.
>
> - -Scott Woodworth
>
> ------------------------------
>
> End of GMC Motorhome Digest V1 #103
> ***********************************