Home » Public Forums » GMCnet » water heater hoses
| water heater hoses [message #182186] |
Tue, 28 August 2012 19:39  |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Senior Member |
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I have a 78 Eleganza. The Water heater tank started leaking. I purchased a stainless steel tank, and am now trying to remove the old water heater. I have everything disconnected except the hoses for the heat exchanger.
I cannot get the exchanger out of the tank, or the hoses off the exchanger. Is there anyway to do this short of cutting them?
Thanks,
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: [GMCnet] water heater hoses [message #182188 is a reply to message #182186] |
Tue, 28 August 2012 19:47  |
Len Novak
Messages: 676
Registered: February 2004
Location: Las Vegas, NV
Karma: -3
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The new tank should come with a new exchanger. If they are that stuck on
the old fittings................cut them unless you can get some kind of
lubricant (dish soap) between the hose and fitting.
Cheers,
Len and Pat
1978 GMC Kingsley
The Beast II with dash lights that work and labels you can see!
Fallbrook, CA new email: B52Rule@Roadrunner.Com
http://www.gmcmhphotos.com/photos/showgallery.php?cat=4375
www.bdub.net/novak/
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Paul Zerkel
Sent: Tuesday, August 28, 2012 5:39 PM
To: gmclist@temp.gmcnet.org
Subject: [GMCnet] water heater hoses
I have a 78 Eleganza. The Water heater tank started leaking. I purchased a
stainless steel tank, and am now trying to remove the old water heater. I
have everything disconnected except the hoses for the heat exchanger.
I cannot get the exchanger out of the tank, or the hoses off the exchanger.
Is there anyway to do this short of cutting them?
Thanks,
--
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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Len and Pat Novak
1978 GMC Kingsley
The Beast II with dash lights that work and labels you can see!
Las Vegas, NV new email: B52sRule@Gmail.com
http://www.gmcmhphotos.com/photos/showgallery.php?cat=4375
www.bdub.net/novak/
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| Re: [GMCnet] water heater hoses [message #182189 is a reply to message #182186] |
Tue, 28 August 2012 20:04 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Paul,
If the hoses are so hard that you can't remove them, are you sure they're
pliable enough to entrust your engine to them? Maybe it's time (after
perhaps 34 years) to replace all of those hoses.
JWID,
Ken H.
On Tue, Aug 28, 2012 at 8:39 PM, Paul Zerkel wrote:
>
>
> I have a 78 Eleganza. The Water heater tank started leaking. I purchased a
> stainless steel tank, and am now trying to remove the old water heater. I
> have everything disconnected except the hoses for the heat exchanger.
>
> I cannot get the exchanger out of the tank, or the hoses off the
> exchanger. Is there anyway to do this short of cutting them?
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: water heater hoses [message #182197 is a reply to message #182186] |
Tue, 28 August 2012 20:36 |
phil
Messages: 24
Registered: July 2012
Location: Stevensville, Montana
Karma: 1
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Junior Member |
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Paul,
Replace the hoses. I did mine about a year ago when I put in a new water heater and I am sure I didn't spend over 2 hours on it (on the hoses). I didn't even take the fender liner out.
Thanks,
Phil
'76 Eleganza II
Stevensville, Mt.
Montana-where Californians move to.
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| Re: [GMCnet] water heater hoses [message #182202 is a reply to message #182199] |
Tue, 28 August 2012 21:05 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Jim,
Me three!
While you're at it; up in the engine compartment install a valve in the hose that goes to the heater and one that comes back from
it. That way if something fails you can shut off the water to the water heater.
When you route the water hose in the frame rails put them up high and the fuel lines down low, you don't need two hoses that run at
engine temp near or below the fuel hoses!
Regards,
Rob M.
-----Original Message-----
From: Jim Galbavy
KenH,
Right you are. When my water heater started to leak I took it to Jeff Sirum 'cause he had one on the shelf and I was going to
Florida anyway (from Virginia). MY HOSES WERE FACTORY ORIGINAL FROM 1973. I am here to tell you that yes, GOD does look after
drunks and fools. ..... but we installed new hoses.
jim galbavy
'73 x-CL ANNIE
Lake Mary, FL
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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] water heater hoses [message #182204 is a reply to message #182189] |
Tue, 28 August 2012 21:28 |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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OK, Points taken. I know somewhere I had seen what size and how many feet of hose I need, but cannot find that now. Can someone point me to the information?
Thanks,
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: [GMCnet] water heater hoses [message #182211 is a reply to message #182204] |
Tue, 28 August 2012 22:23 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| pzerkel wrote on Tue, 28 August 2012 19:28 |
OK, Points taken. I know somewhere I had seen what size and how many feet of hose I need, but cannot find that now. Can someone point me to the information?
Thanks,
|
That information is on Gene's site (along with just about everything else), but IIRC, I used almost a whole roll (50') of 5/8" and six or eight feet of 3/4". Buy the best quality you can get so you don't have to do it again quite so soon.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
[Updated on: Tue, 28 August 2012 22:24] Report message to a moderator |
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| Re: [GMCnet] water heater hoses [message #182227 is a reply to message #182202] |
Tue, 28 August 2012 23:44 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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| Robert Mueller wrote on Tue, 28 August 2012 19:05 |
... When you route the water hose in the frame rails put them up high and the fuel lines down low, you don't need two hoses that run at
engine temp near or below the fuel hoses! ...
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Good info for the coaches with the bathroom and/or water heater on the drivers side... like Rob's Avions, most Royales, the rear twin bed coaches and the like.
BUT the owners of most coaches do not need to worry about the fuel lines running next to the water heater pre-heat hoses, the water heater is on the passenger side while the fuel lines are on the driver's.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: water heater hoses [message #182261 is a reply to message #182186] |
Wed, 29 August 2012 09:52 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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The hose cutter you need is a flat stock metal bar with the red dipped coated handle. It has like 4 sharpened cutter surfaces designed so you can pull or push to slit. Great for heater cores and water valves so you don't wreck them removing hoses. Lisle is my guess on the brand.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] water heater hoses [message #182272 is a reply to message #182270] |
Wed, 29 August 2012 11:30 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Ken,
Good point to consider when routing the lines, however, I don't think it would be a problem as they would be tie wrapped to the top
of the inside of the "C" channel like my rubber ones are.
Regards,
Rob M.
-----Original Message-----
From: Ken Burton
How resistant to impact from road debris, especially from gravel and rocks thrown up by the tires, would Pex be?
Ken
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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] water heater hoses [message #182275 is a reply to message #182272] |
Wed, 29 August 2012 13:07 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Rob,
I have seen a number of application where 1/2" or 3/4" type M copper
tubing was used under the coach to replace the lines back to the HWH
and rubber was used at either end. For protection it was wrapped with
electrical tape.
This is the hose that was used thru out the stretch coach for heater
lines.
http://www.mcmaster.com/#silicone-coolant-hose/=j28vpf
Granted it is expensive, but it is a one time install with excellant
longevity and it came with the coach.
JR Wright
On Aug 29, 2012, at 12:30 PM, Rob Mueller wrote:
> Ken,
>
> Good point to consider when routing the lines, however, I don't
> think it would be a problem as they would be tie wrapped to the top
> of the inside of the "C" channel like my rubber ones are.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Ken Burton
>
> How resistant to impact from road debris, especially from gravel and
> rocks thrown up by the tires, would Pex be?
>
> Ken
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] water heater hoses [message #182285 is a reply to message #182275] |
Wed, 29 August 2012 16:28 |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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Senior Member |
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| powerjon wrote on Wed, 29 August 2012 13:07 |
This is the hose that was used thru out the stretch coach for heater
lines.
http://www.mcmaster.com/#silicone-coolant-hose/=j28vpf
Granted it is expensive, but it is a one time install with excellant
longevity and it came with the coach.
JR Wright
|
That is the first stuff I found last night after reading the posts here. When I did the math (50' x $8.52 = $426) Frankly, my first thought was "The engine preheated hot water is nice, but I can do without it for $400"
I was going to buy a short length of hose and just loop the thing at the engine side.
So today, I go to Autozone and ask for a price for 5/8" hose. It's like $1.90 a foot. Preheated hot water is worth $95 to me.
But with that much price difference, it surely is not the same quality.
Then today I see the PEX posts. Most of the fresh water plumbing in my coach is PEX. I happen to have about 50' of 1/2", and almost 50' of 3/4" PEX left over from other projects at home. But I do not see how one would couple PEX to the fittings designed for engine coolant hoses without a lot of hassle and adapters.
SO, I am kind of back in a quandry as with so many of my GMC projects.
Wondering out loud what it was that GM used that lasted the first 34 years?
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
[Updated on: Wed, 29 August 2012 16:29] Report message to a moderator |
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