Question about Karcher G 2600 VH Gas Pressure Washer

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I have a Karcher G2600vh Honda engine GCV160 N5af which I just purchased a new pump for and installed. The carburetor has been cleaned and have run seafoam thru 2X. Questions...1. It's leaking a little water at the quick connect output valve. (I don't know if it's enough to cause a problem). 2. Engine starts right up; turn choke off; engine runs but is revving up and down. 4. Water comes out but not pressured like it should (have checked several times and released air). 5. The detergent tank is filling with water at all times no matter what nozzle tip I'm using. I don't remember it doing that before. So many questions; so little time. I thought this was a quick fix by just replacing the pump. Suggestions greatly appreciated.

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For item 5, I would check the Detergent Injector, water should never come out there, Maybe something (dirt) is causing it to malfunction.
see picture here http://www.ereplacementparts.com/spare-parts-kit-p-482334.html. Check the ball, o-ring and spring... leakage like this would be one reason for no pressure, It's like not having a nozzle on. fix the leak at the quick connect as well, check the o-ring and replace of it is hard and brittle or nicked. tighten the connection if it is leaking at the threads, some thread sealer sutiable for 2600PSI maybe.
Engine surging problem 'may' go away once you get a proper load on it...

If this is a new pump contact the supplier, maybe it is defective.

Posted on Sep 10, 2014

  • Gartermor
    Gartermor Sep 10, 2014

    Thank you, I'll try that. Very frustrated; reason I bought a new pump was to save time and frustration.

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