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Leaking handgun karcher k785

Have taken the handgun apart and there are 2 perished o rings where the pressure hose goes into the brass valve assembly. I am having difficulty finding the part numbers for these items to replace. Help.

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Hello sir, that is a on going problem with power washers the pump not working, than works sporadically. the main cause is leaving the pressure hose hooked up to the machine over a long period of time,not draining hose & machine, in the winter time the hose & pump will freeze causing hose & pump to expand and burst.handle to leak busting the o rings, build up of calcium deposits from hard water clogging up pump nozzle,valves in the gun handle,clogging hose fittings and screens.one of these has to be your problem.you can find a parts brake down at KARCHER.COM.orRJ BOWERS.COM . and manuals,these are good info,sites,hope this helps.thankyou. !!

Posted on Feb 19, 2012

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No pressure


There may be an issue with the pump. You can take the pump head off to check the seals, or take it to a service center to have it checked.

Feb 12, 2013 | Garden

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How to replace fuel pressure regulating valve


1991-94 Models - REMOVAL & INSTALLATION
  1. Remove the air intake tube and resonator assembly.
  2. Properly relieve the fuel system pressure.
  3. Remove the bolts from the fuel line clip.
  4. Using a 15 / 16 in. (24mm) backup wrench to prevent damage to the inlet port and bracket, disconnect the fuel inlet and return lines from the pressure regulator/fuel rail assembly.
If difficulty is encountered accessing the fuel return line nut, loosen and/or remove the fuel supply and rail attachment fasteners.
  1. Disengage the fuel pressure regulator vacuum hose.
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Fig. 6: Disengage the fuel pressure regulator vacuum hose

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Fig. 7: Use a suitable wrench to loosen ...

  1. Remove the regulator assembly attaching screw, then remove the regulator assembly. Plug the regulator port in the fuel rail with a clean rag to prevent system contamination.
zjlimited_1136.jpg

Fig. 8: ... and remove the mounting screw from the pressure regulator/fuel rail assembly

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Fig. 9: Remove the fuel pressure regulator assembly from the fuel rail
  1. Do not remove the O-ring from the retainer in the pressure regulator fuel outlet, unless it is damaged and requires replacing. Always remove and discard the O-ring from the fuel inlet.
To install:
  1. Lubricate the new fuel inlet O-ring and, if necessary, the new outlet O-ring with clean engine oil, then install the O-ring(s) in the pressure regulator assembly.
  2. Position the regulator assembly to the fuel rail. Coat the threads of the attaching bolt with Loctite® 242 or an equivalent threadlock, then install the bolt and tighten to 106 inch lbs. (12 Nm).
  3. Connect the fuel pressure regulator vacuum hose.
  4. Connect the fuel inlet and return lines, then tighten the lines to 133 inch lbs. (15 Nm) using a backup wrench to prevent port damage.
  5. Cycle the ignition switch to prime the fuel system, then start the engine and check for fuel leaks.
  6. Turn the ignition OFF and install the air intake tube and resonator assembly.

Hope this helps (remember to rate and comment this answer).

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I can use my Karcher K3 jet wash as long as i hold trigger down


Most pressure washers have ball lock type fittings on the hose connections. What happens is the little steel balls get a bit of corrosion and do not lock the male fitting properly with the female coupling. Load up the fitting with some Oil or WD 40. Then connect and disconnect the fitting several times to losen up the balls and springs. Should the spring in the coupling break you will get the exact symptom your describing.

If the OIL / WD 40 does not do the trick then you may have to change out the quick disconnect coupling.

Kelly

Apr 18, 2010 | Karcher PSI Electric Pressure Washer

2 Answers

My pssure washer the pump will not kick on so i have very low ater pressure


If you take the valve body on the pump apart very carefully you may found a broken return spring or a blown out rubber o-ring if the engine runs but the pump doesnt pump high pressure check your pressure relief valve sounds like its stuck open.

Apr 17, 2010 | Comet BXD2527 Pressure Washer Pump

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Hello, i have a Crosman 760 Pumpmaster Air Rifle, i got it from my grandfathers basement and it does not hold air pressure, i dont know what year but its the old one with the brass bolt, not plastic. i...


Sounds like it has a bad o-ring. you can take it apart and replace the o ring for under a dollar. just make sure you look at how it goes back together when you take it apart they are very simple. just make sure the carefully take the right side cover off with the left side of the rifle laying on a table, everything should stay assembled this way so you can look at it. the part you are looking for is in the large chamber that the pump goes into. from the back (the side opposite the pump) remove the spring and the metal piece behind it, then use something the shove the big brass part out of the chamber and the o ring is on the big brass part . take the old o ring to a hardware store to get another one.

Feb 08, 2010 | Crosman (4032)

1 Answer

Model 01902 2350 psi . engine runs fine , sprays out nozzle but lower pressure and water sprays out plastic elbow on relief valve , that is supose to **** in soap if used , cant hold finger over spray from...


It sounds as if the non return valve in the elbow is the wrong way around .The o-ring normally goes in first then the ball then the spring. Try it and good luck.

Sep 08, 2009 | Garden

1 Answer

Karcher 1650 leaking water from trigger


i believe the spring is the actual trigger spring that pushes the trigger switch back in place and the water leaking out is probably a seal issue

Aug 25, 2009 | Karcher Garden

1 Answer

Motor starts and stops


Diagram here
It could be the Overpressure valve is leaking #20
It could be one of the small valves is not sealing #14 and #15
The soap valve could be not sealing #7
I have also seen micro cracks in the cylinder head #8
Good Luck

Jul 19, 2009 | Karcher K2.26 Electric Power Washer

1 Answer

Have honda karcher 5.0 pressure washer and i cant get it to spray any water or pressure out the gun at all? Why??


Hi,

That is a on going problem with power washers the pump not working, than works sporadically. the main cause is leaving the pressure hose hooked up to the machine over a long period of ,not draining hose & machine, in the winter time the hose & pump willfreeze causing hose & pump to expand and burst. build up of calcium deposits from hard water clogging up pump nozzle,valves in the gun handle,clogging hose fittings and screens.one of these has to be your problem.you can find a parts brake down at KARCHER.COM.orRJ BOWERS.COM . and manuals,these are good info,sites,hope this helps, MrFixIt,oh could you please rate this solutions

If it is not leaking water anywhere and the nozzle is OK then go HERE
Turn it off and shut the water of. Go to pate 2.1 of the manual
Carefully remove part #2. Pull out part # 1 and make sure the O-rings are in good shape ad are lubricated with a good waterproof grease. Re-assemble and try it.

Thanks for contacting Fixya

Jul 01, 2009 | Garden

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