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Pressure washer - no high pressure dean 05-13-2007
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Posted by dean on May 13, 2007, 9:07 pm
Hi all,

I gave my smaller pressure washer to my neighbor (retired now, really
cool guy btw), and I brought it over to him and tried to show him how
it works. But I could get no high pressure. The model is a DeVilbiss
WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.

Water flows through the wand at low pressure. When the engine is on,
there is no different in pressure, its just tap pressure. The pump did
not freeze over winter as I had it indoors. Last fall it was working
fine.

Changed the pump oil. No change. Oil was not low.

Changed the wand from high to low and back several times, no change.

Anything else I can try? Are the pumps simple to disassamble and put
back together again? I can get a new pump for $110, but I couldn't
charge him for it.

Any tips welcomed. This is the model:

http://shoppingcart.msservicecompany.com/msservice_net/product_files/WGV2021/wgv2021.pdf

Dean


Posted by Meat Plow on May 13, 2007, 10:15 pm
On Sun, 13 May 2007 18:07:12 -0700, dean wrote:

> Hi all,
>
> I gave my smaller pressure washer to my neighbor (retired now, really
> cool guy btw), and I brought it over to him and tried to show him how
> it works. But I could get no high pressure. The model is a DeVilbiss
> WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.
>
> Water flows through the wand at low pressure. When the engine is on,
> there is no different in pressure, its just tap pressure. The pump did
> not freeze over winter as I had it indoors. Last fall it was working
> fine.
>
> Changed the pump oil. No change. Oil was not low.
>
> Changed the wand from high to low and back several times, no change.
>
> Anything else I can try? Are the pumps simple to disassamble and put
> back together again? I can get a new pump for $110, but I couldn't
> charge him for it.
>
> Any tips welcomed. This is the model:
>
>
http://shoppingcart.msservicecompany.com/msservice_net/product_files/WGV2021/wgv2021.pdf
>
> Dean

Mine pulled that crap on me and I pressed the trigger on and off a bunch
of times and it finally started pumping. You might give that a try before
you have someone tear it apart and clean it.

--
#1 Offishul Ruiner of Usenet, March 2007
#1 Usenet Asshole, March 2007
#1 Bartlo Pset, March 13-24 2007
#10 Most hated Usenetizen of all time
#8 AUK Hate Machine Cog
Pierre Salinger Memorial Hook, Line & Sinker, June 2004
COOSN-266-06-25794



Posted by dean on May 14, 2007, 3:16 am
> On Sun, 13 May 2007 18:07:12 -0700, dean wrote:
> > Hi all,
>
> > I gave my smaller pressure washer to my neighbor (retired now, really
> > cool guy btw), and I brought it over to him and tried to show him how
> > it works. But I could get no high pressure. The model is a DeVilbiss
> > WGV2021-1 2000psi, 2gpm with a B&S 6HP engine.
>
> > Water flows through the wand at low pressure. When the engine is on,
> > there is no different in pressure, its just tap pressure. The pump did
> > not freeze over winter as I had it indoors. Last fall it was working
> > fine.
>
> > Changed the pump oil. No change. Oil was not low.
>
> > Changed the wand from high to low and back several times, no change.
>
> > Anything else I can try? Are the pumps simple to disassamble and put
> > back together again? I can get a new pump for $110, but I couldn't
> > charge him for it.
>
> > Any tips welcomed. This is the model:
>
> >http://shoppingcart.msservicecompany.com/msservice_net/product_files/...
>
> > Dean
>
> Mine pulled that crap on me and I pressed the trigger on and off a bunch
> of times and it finally started pumping. You might give that a try before
> you have someone tear it apart and clean it.
>
> --
> #1 Offishul Ruiner of Usenet, March 2007
> #1 Usenet Asshole, March 2007
> #1 Bartlo Pset, March 13-24 2007
> #10 Most hated Usenetizen of all time
> #8 AUK Hate Machine Cog
> Pierre Salinger Memorial Hook, Line & Sinker, June 2004
> COOSN-266-06-25794- Hide quoted text -
>
> - Show quoted text -

How does the trigger feed back to the machine? I mean, I know it does,
but I just don't see how. Does the pump need back pressure to go high?


Posted by on May 14, 2007, 4:38 am

>How does the trigger feed back to the machine? I mean, I know it does,
>but I just don't see how. Does the pump need back pressure to go high?

There should be a relief valve. It may be stuck.

http://shoppingcart.msservicecompany.com/msservice_net/product_files/PK16862/pk16862.pdf

Posted by dean on May 14, 2007, 10:57 am
On May 14, 4:38 am, t...@mucks.net wrote:
> >How does the trigger feed back to the machine? I mean, I know it does,
> >but I just don't see how. Does the pump need back pressure to go high?
>
> There should be a relief valve. It may be stuck.
>
> http://shoppingcart.msservicecompany.com/msservice_net/product_files/...

Thanks for the parts link!

Is the relief valve in the trigger mechanism?


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