Question about Comet BXD2527 Pressure Washer Pump

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Where is the unloader valve for a comet pump - Comet BXD2527 Pressure Washer Pump

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3 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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Goodluck!

Posted on Jan 02, 2017

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kel1guy2002
  • 3740 Answers

SOURCE: I have a Pressure Washer

Derek, Hi and welcome to FixYa. I am Kelly.

I just now happened across your post and note it is 3 months old. Hopefully you already have the problem solved.

If not.. looking at the pump history of having the un-loader valve replaced it sure seems that the current un-loader valve is sticking. When an un-loader valve is removed the internal housing is sanded smooth and everything about the un-loader valve is coated with Lubriplate #105 White Grease. I get the feeling that who ever did the un-loader valve repair failed to sand / clean the housing and use White Grease for the final assembly.

You should remove the valve... Sand the housing and get some Lubriplate #105 white grease (auto parts store) in a tube. Lubricate it liberally and reassemble it. If should work fine after that.

Thanks for choosing FixYa,
Kelly

Posted on Dec 07, 2010

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ftw1952
  • 10319 Answers

SOURCE: Low pressure when running.

basicly you can review all these videos and learn how to repair your pressure washer easily. Most have the same valves as shown were the hosses attach to
here is the link to many videos to view below

http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4GPCK_enUS397US398&q=pressure+washer+repairing+you+tube

Posted on Jun 18, 2011

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1 Answer

Little plastic parts behind the six big nuts on brass end of the pump have melted.


Hi
These are the valves If they are melted this is because the washer is being left running without being triggered. I also suspect yoru unloader may be failing...your will want your unloader tested. The only way to test anything is to replace these valves first. unfortunately I would also inspect your packings as well as the pistons. when water builds up for a length of time without triggering the washer it recycles and builds up heat....this heat starts to melt your valves....this can also happen by starving your pump for water....running it without water....or by a failed unloader where it doesnt allow water to bypass...do you have to pull the trigger of your wand to start it? If so then your unloader needs work. If it has been starved for water..then your packings will show that damage as well...Usually the farthest set from the inlet having the most damage. Also, when that all get hot as soon as you trigger it and cold water is introduced into the pump, this "shocks" the pump packings and pistons. You want to check the pistons to see if they have cracked..So inspect your pump oil for water...look to see if its white-ish looking... Check your pistons for cracks...check your packings for wear. If you see wear that increasingly gets worse the farther away from your pump inlet then thats a tell tale sign of starvation. ..if your pistons are cracked you will need to replace packings as well anyway. Then replace your valves...reassemble and test your unloader. Good luck to you man. You can get all parts here Pressure washer parts catalog quick links Pressure Washers High Pressure... or FIND PARTS FAST

Aug 12, 2014 | Comet Garden

1 Answer

B&E pressure washer w/ comet 3540 pump


Things to check:
1) is water coming out of the bottom of the pump or is the oil in the crankcase high level and milky yellow. If so your seals are bad.

2) Your check valves might not be seating properly. A couple of fouled check vavles will cause either no pressure or pulsing pressure. A good inlet water strainer keeps foreign matter out of valves. But valves do wear out and get build up that keeps them from working right.

3) Your unloader valve might be worn or fouled. Bad unloader would usually show as low pressure ( but more than hose pressure) or low volume out the trigger nozzle.

Valves are your most likely problem.

Feb 17, 2014 | Comet Pressure Washer Hw3540s Triplex Pump...

1 Answer

Comet axd 3020 will not build pressure


junk axial wobble plate pump. Usually axial pumps are not worth the time to try to fix them. This one has a 5 year warranty , so they think they have a pretty good one. ( I would never buy one) If you want to try to fix it, I would check the check valves first. Take them out and see if some are broken or not sealing properly. There is a valve kit available.
The other likely problem is your unloader valve. If the seal is shot or the valve stuck open the pump will not build pressure.

parts diagram http://www.ppe-pressure-washer-parts.com/files/1961581/uploaded/axd-PUMP%20BREAKDOWN.pdf

Oct 31, 2013 | Comet Garden

2 Answers

Comet tw 5050 mix oil and water


what you have is a bad seal or a crack within the pump crack more common if any water was left in it during the cold winter

Jun 22, 2012 | Comet Pressure Washer Tw5050 Triplex Pump...

1 Answer

My pressure washer stops running when i let off the trigger


hi there sal rick85

sounds like the unloader valve is not working or stuck closed , check the setting of the unloader valve may be set too high, the unloader must open in odrder to cycle water back to inlet side of pump - if not builds up heaps of pressure , stalls the engine - service the un loader valves on the pressure head

take look and let me know - what brand your blaster unit is i know its honda but what pump
comet - axd, lw/zw, - in line or axial cam

in the mean time here is good web site on power washers

http://www.the-power-washer-advisor.com/

or go to
http://www.the-power-washer-advisor.com/pressure-washer-pump-trouble-shooting.html

cheers pauly46

May 30, 2011 | Honda Pressure Washer PSI 3000

1 Answer

Pump pumps pressure as it should but when I release the trigger on the wand it wants to keep pumping instead of going into bypass mode. Is there a simple fix or do I need to have it repaired or replaced?...


Dennis,
Your issue is going to be in the unloader valve, I don't have a breakdown of the pump that you have but if you take the pressure adjustment valve out of the pump you can easily fix the issue. Look for a piston, with o-rings that moves up and down, either on the shaft of the adjustment valve or down inside the cylinder of where you removed the adustment valve. Clean the piston and/or o-rings, lube them with a white lithum grease (product in a tube, not the spray can). Put the adjustment valve back together the way you removed it and it should work correctly after that.

Oct 19, 2010 | Comet GXD2527G Pressure Washer Pump

1 Answer

I have a Pressure Washer with a Comet ZWD 4040 Pump. It recently had a new Unloader Valve fitted. It has suddenly developed a problem, the pressure goes up to 3000psi and then drops back to 2000psi. I...


Derek, Hi and welcome to FixYa. I am Kelly.

I just now happened across your post and note it is 3 months old. Hopefully you already have the problem solved.

If not.. looking at the pump history of having the un-loader valve replaced it sure seems that the current un-loader valve is sticking. When an un-loader valve is removed the internal housing is sanded smooth and everything about the un-loader valve is coated with Lubriplate #105 White Grease. I get the feeling that who ever did the un-loader valve repair failed to sand / clean the housing and use White Grease for the final assembly.

You should remove the valve... Sand the housing and get some Lubriplate #105 white grease (auto parts store) in a tube. Lubricate it liberally and reassemble it. If should work fine after that.

Thanks for choosing FixYa,
Kelly

Sep 15, 2010 | Comet GXD2527G Pressure Washer Pump

1 Answer

Compressor wont restart because of head pressure


Piston air compressors have to unload to permit a restart, the two mot common types are an unloader valve or free air unloaders.

with an unloader valve this system uses a check valve mounted in the discharge line as it enters the tank, when the pump stops this check closes and does not permit the tank pressure to return to the pump. a unloader valve also opens to allow air pressure in the discharge line to vent, this valve is either on the pressure switch or on some models is on the pump, and is a centrifugal type.

Free air unloaders or head unloaders are a set of fingers that hold open the intake valves on the cylinders to permit the piston not to pump air against a head load, and once the pump is running the fingers retract to allow the pump to function as normal.

Jan 19, 2010 | Air Tools & Compressors

1 Answer

I have a northstar pressure washer with a comet pump AXD 3020G that will not build up pressure, can you give me some ideas on what may be wrong ,I have checked the screen on the inlet ,it is clean


Normally, it is one of three things.

1.) The high pressure seals are bad

2.) There is debris in the check valves

3.) the unloader is stuck in by-pass.

Nov 16, 2009 | Northstar Pressure Washer 3000 PSI

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