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North star eletric hot 2000 psi 3.5 gal per min oil pump had blown shaft seal. replaced with new pump. put small allen plug in return port. I have oil flow to the pump but none comes out port leading to burner even with shutoff switch removed and pump turning. Installed test gage 0 pressure. Took off bypass line and ran into can. pumps small amount of fuel into can that way but with uneven flow & small bubbles. nomatter what I do I just can't get fuel outlet port to burner. pump # A2VA-7116 please help

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5 Suggested Answers

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: I want to remove the 4gpm pump on my pressure washer.

HI, It sounds like it is just stuck on the keyway as these can be very tight. You need to force the pump of evenly on either side and should come of if patient.

Posted on Feb 08, 2010

Testimonial: "I'm sure the answer is correct. Over time my use of harsh chemicals no doubt corroded the key-way."

  • 100 Answers

SOURCE: I have the Troy-bilt 2550 psi pressure washer with

I would replace the internal part of the unloader valve, it is known as the unloader seat, I can order you one it would take 2-3 days, Part number is 193972 price is $45.06. If you are interested in ordering one send me a email at with the information that I just gave you.

Another thing that you can check is the outlet check valve, the tube that you screw your high pressure hose onto has a valve built into it, if that valve went bad or if there is something stuck in it you would also have this problem. If you take the tube off the valve will be right where you screw that pipe onto the pump, the valve is part number 190592, price on this is $8.16.

Posted on Nov 10, 2010

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SOURCE: I have a Pressure Washer VR2500 , 6.5 horsepower /

Hi and welcome to FixYa, I am Kelly
First here is the owders manual:

There are 3 versions of the VR2500 Pressure Washer.

1 being the VR2500 Type 0 It has the comet pump that needs no oil
2 being the VR2500 Type 1 Also with the comet pump.
3 being the VR2500-C Again with the coment pump

The allen set screws that you removed hold the bearings in place.

The only pump maintence required is winterization with either a winterizer EX80 or RV anti-freeze


The manufacturer recommends using

a pump protector/winterizer, such as

EX80, when storing the unit for more

than 30 days and/or when freezing

temperatures are expected. If a pump

protector/winterizer is not available,

*RV antifreeze needs to be run through

the pump as outlined in the steps

EXCell does make units that have an AR pump that requires pump oil. The VR2500 pump does not.

Thanks for choosing FixYa.

Posted on Dec 06, 2010

  • 1 Answer

SOURCE: My Troy Bilt power washer (using Honda GCV160

I had a similar problem. Turns out I had left the hose disconnected and some sort of wasp built a paper type nest inside the washer tube that the hose connects to. I had to take the pump off and take apart and then cleaned it out with a screw driver. Not too easy to do but finally got it clean. Same thing happened with the hose.

So, if you haven't used it for awhile, check that there is no blockage in the hose or pump tubes. You might be able to blow it out with an air compressor.

Posted on Feb 11, 2011

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