| Original water pump [message #363287] |
Tue, 06 April 2021 21:05  |
Hager
Messages: 19
Registered: December 2020
Location: Granite City Illinois
Karma: 2
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Junior Member |
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I have the original water pump in my GMC and it still works. What should I replace it with when it goes out?
Hager and Sissy
1975 Eleganza #5 of that year
Has a plaque on the glove box from GMC
Mostly stock with Renogy charging system and a few changes to the interior
Eagle rims and through the bumper hitch
Granite City Illinois
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| Re: Original water pump [message #363291 is a reply to message #363287] |
Wed, 07 April 2021 00:03  |
dsmithy
Messages: 210
Registered: July 2012
Location: Lincoln Nebraska
Karma: 0
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Senior Member |
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Just this year I went through the water pump saga.
In my '73 I had what I think was the original Pur water pump. I even had a spare. It has worked flawlessly for 25 years. I decided to google the pump and was surprised to find that it is still available, including a rebuild kit. We have liked it, so I bought and installed the rebuild kit. It was kind of a pain because the through bolts which hold the thing together were rusted and broke, but I managed a successful rebuild and it ran like new. The problem is, I could not find a rebuild kit for the pressure switch which I took apart and cleaned. The flexible membrane was extremely stiff and a more clever person would have researched a replacement material and cut a new membrane. I did not. This resulted in a perfectly running, rebuilt pump which would not reliably start, though it would stop. After lifting the bed and whacking the pump one too many times I rigged a spare wrench and line which was reachable which would smack the pump when jerked. After living the MacGyver life for a week I decided to replace the pump.
Our replacement has been a: "SHURflo 12v 3.0 GPM Revolution RV Water Pump # 4008-101-A65" bought off Amazon for $60. I also bought the screen. Life has been much better with the new pump. The most obvious benefit has been the ease with which we can adjust the temperature of the shower water without the pulse of the old Pur. This is due to the fact that this pump has four little chambers instead of one big one, so the flow is more even. Time will tell how durable this one is though it is unlikely to match the original at 47 years, but we really like it. JWID
Douglas & Virginia Smith,
dsmithy18 at gmail,
Lincoln Nebraska,
’73 “Sequoia” since ‘95: "Wanabizo";
Quadrabag/6 wheel disks/3:70 final/Paterson QuadraJet/Thorley’s/Alloy wheels/Sundry other
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| [GMCnet] Re: Original water pump [message #363292 is a reply to message #363287] |
Wed, 07 April 2021 00:01 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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If your happy with the old one, look for the same specs or go with one with
more volume .
Most units have the same connection so easy to install.
Most are quiet, but noise is good to know should you have small leak as you
will hear a pulse.
On Tue, Apr 6, 2021 at 7:05 PM Jim wrote:
> I have the original water pump in my GMC and it still works. What should I
> replace it with when it goes out?
> --
> Hager and Sissy
> 1975 Eleganza #5 of that year
> Has a plaque on the glove box from GMC
> Mostly stock with a few changes to the interior
> Eagle rims and through the bumper hitch
> Granite City Illinois
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| [GMCnet] Re: Original water pump [message #363293 is a reply to message #363287] |
Wed, 07 April 2021 00:01 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Our web site show couple types.
On Tue, Apr 6, 2021 at 10:01 PM Jim Kanomata wrote:
> If your happy with the old one, look for the same specs or go with one
> with more volume .
> Most units have the same connection so easy to install.
> Most are quiet, but noise is good to know should you have small leak as
> you will hear a pulse.
>
>
> On Tue, Apr 6, 2021 at 7:05 PM Jim wrote:
>
>> I have the original water pump in my GMC and it still works. What should
>> I replace it with when it goes out?
>> --
>> Hager and Sissy
>> 1975 Eleganza #5 of that year
>> Has a plaque on the glove box from GMC
>> Mostly stock with a few changes to the interior
>> Eagle rims and through the bumper hitch
>> Granite City Illinois
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
>
>
> --
> Jim Kanomata
> Applied/GMC, Newark,CA
> jimk@appliedairfilters.com
> http://www.gmcrvparts.com
> 1-800-752-7502
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.gmcrvparts.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: Original water pump [message #363295 is a reply to message #363287] |
Wed, 07 April 2021 05:02 |
Hager
Messages: 19
Registered: December 2020
Location: Granite City Illinois
Karma: 2
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Junior Member |
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Thank you for the information. I am happy to hear that it will be a easy fix when the time comes
Hager and Sissy
1975 Eleganza #5 of that year
Has a plaque on the glove box from GMC
Mostly stock with Renogy charging system and a few changes to the interior
Eagle rims and through the bumper hitch
Granite City Illinois
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| Re: Original water pump [message #363303 is a reply to message #363295] |
Wed, 07 April 2021 09:25 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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It has been my experience that the pressure control switch is the high failure part of the PAR pumps. Parts for and replacement switches are difficult to non-existent. I like these pumps, but if you can't get the parts you need, that just does not matter very much.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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