 Water Pump [message #296657] |
Thu, 03 March 2016 19:55  |
mechanic007
Messages: 31
Registered: August 2015
Location: Santa Monica, CA
Karma: 0
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Water pump motor runs. No output with water in tank.
I put my finger over output. I feel no pressure.
What is the repair? Thanks.
73 Canyonlands 230 23' Sureflo Diaphragm Pump
1973 Canyonlands 230 (23')
Odometer reads 37K but probably 137K or 237K
Side wet bath/Rear bed/couch
Kitchen to the rear of the door
inSanity Monica,California
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| Re: Water Pump [message #296658 is a reply to message #296657] |
Thu, 03 March 2016 20:07  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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You probably have an air lock on the input side of the pump. You need to get rid of the air in the line and assure that only water is present on the input side of the pump.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Water Pump [message #296911 is a reply to message #296658] |
Mon, 07 March 2016 21:18 |
mechanic007
Messages: 31
Registered: August 2015
Location: Santa Monica, CA
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Thanks, Ken. But I get no water or air coming out of output from pump after disconnected the output hose coming out of it. I suspect the pump is not pumping? Diaphragm? Rebuild or replace pump? Thanks.
1973 Canyonlands 230 (23')
Odometer reads 37K but probably 137K or 237K
Side wet bath/Rear bed/couch
Kitchen to the rear of the door
inSanity Monica,California
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| Re: Water Pump [message #296915 is a reply to message #296911] |
Mon, 07 March 2016 22:25 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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What I am trying to tell you is you need to prime that pump to get it to pump water again. I do this every year when I switch over from pumping water out of the tank to pumping antifreeze from a bottle. The hose that I use to suck the antifreeze out of the bottle has air in it and I usually end up having to manually fill the hose with fluid before it will pump again.
Good Luck and try priming that pump with water on the input side of the pump.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Water Pump [message #296918 is a reply to message #296657] |
Tue, 08 March 2016 00:06 |
Hiwaystar
Messages: 12
Registered: January 2016
Location: Savannah Georgia
Karma: 0
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Another thing that can happen, my pump has screens on the three individual pumping diaphragms. These diaphragms have screens on them that become clogged and will stop your pump.
Take the pump apart, clean the screens and you're good to go.
Except for the skeevy knowledge there is stuff growing in your water tank...
Live with that!
76 Eleganza mostly stock, Sully bags, needs one of everything.
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| Re: Water Pump [message #297353 is a reply to message #296657] |
Mon, 14 March 2016 19:54 |
mechanic007
Messages: 31
Registered: August 2015
Location: Santa Monica, CA
Karma: 0
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Member |
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I replaced the old water pump with a electric fuel pump I bought at Oreilly's. It runs and pumps water but nothing comes out of the faucets. It stops running after several minutes suggesting it has pressurized the system. Are there some shut off valves somewhere that I should be opening?? Thanks mucho grande.
1973 Canyonlands 230 (23')
Odometer reads 37K but probably 137K or 237K
Side wet bath/Rear bed/couch
Kitchen to the rear of the door
inSanity Monica,California
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| Re: Water Pump [message #297357 is a reply to message #297353] |
Mon, 14 March 2016 20:04 |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Senior Member |
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Yes there can and should be shut off valves within the system. Who knows what a prior owner did to the system is a guess. If you were to put the year and model of your coach into your signature line it may help. There are diagrams out there of what is supposed to be in a stock location, but different models vary. Side bath versus rear bath. Center kitchen, rear kitchen etc.
You can start by tracing the lines at the pump, or trace backward from the faucets. The shut offs and possibly a drain or two. Since they are meant to be opened and closed, they "should" be somewhat easy to get to.
If your pump shuts off, when it thinks the system has pressure, do you get any air coming out of the faucets?
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: Water Pump [message #297363 is a reply to message #296657] |
Mon, 14 March 2016 21:27 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I don't think an electric fuel pump is going to provide anywhere near the volume a water pump will.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Water Pump [message #297367 is a reply to message #297353] |
Mon, 14 March 2016 22:05 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Jerry,
A fuel pump is totally unsuitable as a water pump for a number of reasons.
Perhaps you should take advantage of this super sale on some usually good
quality equipment:
http://www.goldmine-elec-products.com/prodinfo.asp?number=G20539
Ken H.
On Mon, Mar 14, 2016 at 8:54 PM, jerry wrote:
> I replaced the old water pump with a electric fuel pump I bought at
> Oreilly's. It runs and pumps water but nothing comes out of the faucets.
> It
> stops running after several minutes suggesting it has pressurized the
> system. Are there some shut off valves somewhere that I should be opening??
> Thanks mucho grande.
>
>
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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: [GMCnet] Water Pump [message #297508 is a reply to message #297503] |
Wed, 16 March 2016 22:28 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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My GO-TO tool for that sort of thing is a DeWalt 1/4" impact wrench.
But don't count on being able to repair it for less than the cost of the
new one I recommended.
Ken H.
On Wed, Mar 16, 2016 at 9:29 PM, jerry wrote:
> Thanks. I just happened to have a new fuel pump lying around that I was
> not using. Any ideas of how to get the Phillips screws off the old Sure Flo
> pump?
>
>
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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: [GMCnet] Water Pump [message #297804 is a reply to message #297793] |
Mon, 21 March 2016 21:10 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Jerry,
I'm not familiar with the pump, so my advice isn't likely to be worth
much. Are you SURE there's nothing plastic to be damaged by the
flame/heat? That would, in my experience, be unusual. LIght raps with a
small hammer around the area of interest would likely be my second choice.
I think it's unlikely there are screens inside the pump; generally if there
are any in the system, they're external and easily opened.
Good luck,
Ken H.
On Mon, Mar 21, 2016 at 9:34 PM, jerry wrote:
> Thanks, Ken.
> I don't have an impact wrench :( . How about heating the casing with a
> propane torch? I thought there might be some dirty screens inside that
> could
> need cleaning?
> --
>
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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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. How about heating the casing with a propane torch? I thought there might be some dirty screens inside that could need cleaning?