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water hose questions [message #134931] Sun, 17 July 2011 11:56 Go to next message
chasingsummer is currently offline  chasingsummer   United States
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Registered: May 2011
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while inspecting an inop cruise control unit in driveway i noticed i have some bad water hose,
so help my light bulb burn, passenger rear side seems where water used to go back towards water heater but presntly disconnected with a coupte tees there,
please confurm proper is out of back passenger side of motor to water heater, then the return from water heater goes to heater box, then out put side of heater box goes to passenger front side on engine. this is independed of the top and bottom radiator hoses. does this sound correct?
also, to bypass heater box since i dont need this time of year, and since i have not confurmed water heater even works, can i run hose from the front passenger side water inlet to rear passenger water inlet and just bypass water heater and heater box without hurting anything?
thanks guys bgk


brian asheboro, nc 75 eleganza, 74 build 119k miles and counting, DOG HOUSE
Re: water hose questions [message #134945 is a reply to message #134931] Sun, 17 July 2011 16:17 Go to previous messageGo to next message
JShot is currently offline  JShot   United States
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Location: NW Ohio
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bgk,

IF you didn't have a hot water heater using the engine coolant as pre-heat, the in-dash heater (to warm your feet) would get its water from the rear passenger side of the engine (5/8" hose), through the heater core, then back to the front of the engine (3/4" hose).

In coaches that have the hot water (for dishes) pre-heat system, the hoses for that are t'd into the in-dash heater hoses at the front and the rear of the engine so the coolant can also circulate through the hot water heater.

My hot water heater is gone, so I removed the t's and the hoses that went back to it, and I just ran new hoses up and back to the in-dash heater. You don't need the hot water pre-heat hoses.

You also don't need the in dash heater system, except when it gets cold. But most owners just put a ball valve in one of the heater lines and shut it off during the summer.

HTH
John


John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
Re: water hose questions [message #135039 is a reply to message #134945] Mon, 18 July 2011 14:51 Go to previous messageGo to next message
zhagrieb is currently offline  zhagrieb   United States
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No. Plumbed as you describe would put the water heater and the heater box is SERIES, you don't want to do that. What you want is to PARALLEL them That way each would work independently of the other. That's why the "T"'s are there.

Better motorheads than I can tell you if it's OK to run a hose between the two water ports but I'd choose to block them.

Glenn


Glenn Giere, Portland OR, K7GAG '73 "Moby the Motorhome" 26'
Re: water hose questions [message #135081 is a reply to message #134931] Mon, 18 July 2011 19:28 Go to previous messageGo to next message
chasingsummer is currently offline  chasingsummer   United States
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parrell, i think i understand, front motoroutlet goes to both and rear goes to both.
i went looking for hose today, 2 lowes and one homedepot and an ace hardware, none had 50 foot of hose, all were pround of it,
where is the best place to get this, and is the close to 2 dollars per foot normal?
bgk


brian asheboro, nc 75 eleganza, 74 build 119k miles and counting, DOG HOUSE
Re: water hose questions [message #135082 is a reply to message #135081] Mon, 18 July 2011 19:33 Go to previous messageGo to next message
zhagrieb is currently offline  zhagrieb   United States
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Any auto parts store should have lots of heater hose. I think you need two sizes for the heater box, one for run to and from water heater.

Glenn


Glenn Giere, Portland OR, K7GAG '73 "Moby the Motorhome" 26'
Re: [GMCnet] water hose questions [message #135096 is a reply to message #135081] Mon, 18 July 2011 20:07 Go to previous messageGo to next message
emerystora is currently offline  emerystora   United States
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You don't want to go to use garden hose. It won't hold up to the heat so forget about Lowes, Home Depot, Ace Hardware etc. Check Auto Parts stores.
I just checked on Amazon.com and found one place that sells 50' or 5/8" hose for $26.99.
I didn't search much but I am sure you will find it at a reasonable price.


On Jul 18, 2011, at 6:28 PM, brian@red.mynethost.com, asheboro@red.mynethost.com, nc 75 eleganza 2 wrote:
>

Emery Stora
77 Kingsley
Santa Fe, NM


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Re: [GMCnet] water hose questions [message #135228 is a reply to message #135096] Tue, 19 July 2011 16:26 Go to previous messageGo to next message
powerjon is currently offline  powerjon   United States
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This is what I have on our coach, it will last almost a lifetime
compared to the rubber hoses that are out there.

< http://www.google.com/products/catalog?hl=en&client=safari&pwst=1&rls=en&q=silicone+heater+hose&bav=on.2,or.r_gc.r_pw.&biw=124 1&bih=847&um=1&ie=UTF-8&tbm=shop&cid=5274474517900954212&sa=X&ei=QPUlTv6oN-Tx0gGdsfXWCg&ved=0CHUQ8wIwAg#ps-sellers
>

http://tinyurl.com/3b63vq9

Comes in both sizes used on our coach.

Regards,

J.R. Wright
GMC GreatLaker
78 Buskirk 30' Stretch
1975 Avion (Under Reconstruction)
Michigan

On Jul 18, 2011, at 9:07 PM, Emery Stora wrote:

> You don't want to go to use garden hose. It won't hold up to the
> heat so forget about Lowes, Home Depot, Ace Hardware etc. Check
> Auto Parts stores.
> I just checked on Amazon.com and found one place that sells 50' or
> 5/8" hose for $26.99.
> I didn't search much but I am sure you will find it at a reasonable
> price.
>
>
> On Jul 18, 2011, at 6:28 PM, brian@red.mynethost.com, asheboro@red.mynethost.com
> , nc 75 eleganza 2 wrote:
>>
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
Re: water hose questions [message #135348 is a reply to message #134931] Wed, 20 July 2011 14:46 Go to previous messageGo to next message
GeorgeRud is currently offline  GeorgeRud   United States
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I haven't looked under the coach, but could you use some rigid copper tubing for the straight section of the hose run along the passenger's frame rail? I think that there are sizes of pipe available that would allow you to replace a fair amount of the hose. Obviously, there would be two more hose clamps and potential leak points, but it may be a possible alternative. Don't know if constant vibrations would work harden the copper, but if it is properly supported with padded clamps, that should not be much of an issue.

If it wasn't so hot, I'd actually go outside and check what things look like down there.


George Rudawsky
Chicago, IL
75 Palm Beach
Re: [GMCnet] water hose questions [message #135376 is a reply to message #135096] Wed, 20 July 2011 17:56 Go to previous messageGo to next message
chasingsummer is currently offline  chasingsummer   United States
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ordereed goodyear hy temp few minutes ago, budget would not go the nice blue hose, gut said stay away from the cheep low temp stuff.

brian asheboro, nc 75 eleganza, 74 build 119k miles and counting, DOG HOUSE
Re: water hose questions [message #135399 is a reply to message #135348] Wed, 20 July 2011 22:11 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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I do not think I would do that. I was under someone's coach at a work rally and happened to look up at the rigid copper line used for the propane. It had a big dent in it almost smashing it flat. It also had several other dents from what I assume were flying rocks and gravel. If you are going to use copper I would cover it with something like heater hose for protection.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: [GMCnet] water hose questions [message #135408 is a reply to message #135399] Thu, 21 July 2011 00:47 Go to previous message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
Ken,

Interesting!

Maybe that's why Avion ran the copper propane line inside the coach on top
of the wheel well where it meets the side wall.

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

-----Original Message-----
From: Ken Burton

I was under someone's coach at a work rally and happened to look up at the
rigid copper line used for the propane. It had a big dent in it almost
smashing it flat. It also had several other dents from what I assume were
flying rocks and gravel. If you are going to use copper I would cover it
with something like heater hose for protection.
--
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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