Residential Pressure Pump Repair 

Hello there Bruce!!! Thanks a lot for posting this video!! I found it very interesting to see the pump/valve system being serviced. You make it look easy!!! Take care!!!

This was a very helpful video Bruce. I learned quite a bit today! Oh, if you had a pair of snips, can wrench and some diagonal (with wire stripper holes) pliers on the workbench to go along with that cable knife and spudger, I would have felt right at home. ;-)

First of all , Thanks Bruce Today, I took my pump off in hopes of aluminum brazing with low temp alum brazing rods. I have a spraying leak on the pump threads where the brass soap inlet screws on the pump, so I had to strip the pump from all parts because I will be applying heat with a torch in order to braze the crack. First time trying this. Well Thanks to Your Tip on how to remove the check valves using the mounting bolts . I was able to take them out without damage. using the bolt. I am a new subscriber for life. Thanks

Bruce I love your site, helpful tip for low pressure. After I changed all the 6 valves, unloader, pressure vale, checked everything I still had low pressure. Most over looked replacement for low pressure problems. Remove the high pressure hose from the PW, this high pressure hose is attached to the 3" high pressure pipe, remove this 3" pipe, now after removing pipe look back inside the pipe still attached to the PW, yes there it is "The Jet", unscrew the jet (screwdriver left), after the turning stops, you need to pull the jet out, not easy, what I did, I hooked the PW to the garden hose and the water pressure pushed it out, be careful not to lose the jet parts , (back jet, spring, front jet), small pin hole need to be cleaned out, also the jet may need to be replaced, this is where my problem was, worn jet, easy.... Lee

Waiting on parts. Going to use your video to guide me through it. I have the same pump. Thanks

Awesome repair job Bruce!! Sean~

many good tips n details I was wondering , thank you

Came out great Bruce Find job 👍

That was an extremely good video Bruce a lot of excellent information.

Great job again like always

Its nice to see your energy at this age. Nice video.

Hmmmm this was very interesting and instructive video. Am just having the same problem here no pressure. Thumbs up 👍for this video what's am looking for. Have a good day. 👌❤️

Great job Bruce.

Love your red handled cable knife. Looks red and maybe orange Klein. 🤠

Great video.I cant wait to see if i can do that with a pressure washer

Awsome video, thank you very much for all effort and work good sir

Good video, I learned several key points, thank you!

Love it and no silly music. . Everyone thinks they're next big DJ, using only stock, royalty free/ no copyright music... thanks for video.

Nice video Bruce!

Love a man in love with his workbench, Thanks Bruce

Great video definitely learned a lot even though my pressure washer is completely different but the parts and functions are the same.

Yee Doggy...That was a good video on pump rebuilding ...Ana I watched the whole thing while watching Perry Mason...I watch ME tv in the morning shows like leave it to beaver ,my 3 sons etc....

Good job…..very helpful…thank u

Ta for the video mate she’s a nice little washer.

Awesome job Bruce! Thanks for taking us along, this is good info to have!

Great video sir

I think " someone " use to work for a telephone company. A pick stick or push down tool for jumper wires, and a cable splicers knife. Hmmm, wonder who that could be. LOL Great video my friend. I've got a pressure pump exactly like yours and it's on a Troy-Bilt 3,000 psi pressure washer that's been sitting for 7 years unused. I am just now exploring if the unit will work again or not. I won't find out until I get the new pressure hose for it so I can run the unit to see if it develops high high pressure water. Just a note: Troy-Bilt doesn't support the pressure washer saying it was built by Briggs and Stratton. I went to both websites and Briggs and Stratton said they never heard of the model number I have. It's going to be interesting if I have to rebuild my water pressure pump like you did and find any parts for it. Once again, thanks for a great video my friend.

Enjoy your videos very much, I have that exact pump, and have did complete rebuild and didn't work ,I have watched all the videos and have not seen ANYONE remove the OUTPUT TUBE, there is a valve way down deep with a small rubber O ring on the tip and 2 larger O rings . Mine had the small O ring stuck or glued in tight from setting idle for years.it appears to be a pressure relief valve or something. Hope this helps someone.thanks

Hey Bruce great video. I learned a lot of Do's and Don'ts on your Video that can and will come in handy when I repair My Generac 2.5 2800 PSI washer. Anybody got a spare pump for sale cheap. Like, Do Keep your index finger Healthy like in 12:22 Don't test water pressure with your bare Index finger as in 51:22 or 53:09 and 53:27 Or, This is what happens as in 55:09 and 56:00 . But seriously Bruce great Video. hope you are ok.

I love this video

Another great video Bruce! I think I have been missing out if that's all it takes to rebuild a down power washer pump. I see them all the time by the side of the road. Motors are good but pump is bad

Wheee doggies! Nice job. Keep up the good videos. Thank you.

I recognize that knife from my days at Ma Bell!

wounder if your better off with a new pump. saw one for 80 bucks on ebay. Great vid thanks Bruce

Hi Bruce, amazing video, thanks for uploading. I forgot to have water running when I fired up my pressure washer a few weeks ago. Naturally, I’m assuming my pump is torched. I have taken it apart and don’t see anything glaring that appears to be damaged. Do you know what usually goes in one of things when someone does what I did?

I’ve watched lots of these videos that fix no pressure, taking the pumps apart, checking hose, etc! Even brought it to a repair shop, they told me to scrap it as they’re basically a throw away inexpensive and easy to replace? The first thing you should check is the KEY WAY??????? After 3 weeks of screwing around, I unbolted the ENTIRE PUMP from the engine and discovered the KEY WAY had disintegrated!!!!!!! Had to polish the engine shaft as it was gouged. Once I removed the burrs from the shaft and the new pump assembly I bought would slide on, I greased the shaft, set the new key way in place and fit everything back together, PROBLEM SOLVED!!! Not one video on here showing that low pressures can and does occur if the KEY WAY has been ground off!!!!

You have not completely torn down the pump. There is a high pressure jet under the outlet tube which has very close tolerances and will stick closed if pump preservative is not used prior to storage. (waheller1 mentions this in his comment 10 months ago) When this jet sticks it gives the exact same symptom as what is shown in this video. This is a build of of pressure inside the pump which the unloader cannot releave. If allowed to continue for a few seconds it will blow out the check valves and damage the internal oring in the unloader. This jet oring must be replaced as it swells from the excess pressure and will not seat properly again. See AR pump parts breakdown to get part numbers of orings or you can buy a oring seal kit. Also the only nozzle you should use when setting pressure is the RED or straight stream nozzle. You should also use a guage to set pressure. Otherwise you cannot be sure of the pressure that is being set and can turn the pump into a bomb.

I used a 5/16 tap to get them out with a drill fast and easy

I have the same pump as the one in the video and I want to replace all the valves, O rings, and seals. Where did you order your parts? I’m a 63 y/o woman who recently learned how to clean carburetors on lawnmowers, then the pressure pump on my pressure washer leaked oil and had water coming out of it. I was thrilled to find your video and I love your sense of humor! Thank you

Long extensions on a torque wrench change the torque to a higher level, because the extension flexes

Bruce, nice second life for your wire pick. Do you have chores for your can wrench too?

What happens when that ball and spring are stuck in the bottom from hard water debris (and the ball doesn't move or actuate anything)? I picked up an almost brand new Troybilt 2500 washer that wouldn't build pressure. Disassembled the valve body, and removed all the plastic valves (now waiting on delivery of the replacements), but that ball was jammed in tight. Soaked it in penetrating oil for hours, then cleaned it out, and it would not budge. I then filled the whole inside of the valve body with Evaporust overnight. Washed all that out with HOT water, retreated it with penetrating oil (Tri Flo is my go to penetrating oil). Got the ball to finally come out with compressed air this morning. Yay me. Even recovered the spring on the floor that shot out with it before the garage trolls found it and hid it somewhere. I am hoping that thing being stuck was why the thing wasn't building pressure, as I didn't find any other problem in the valve body. Do you think that would cause it to not build pressure?

Glad you launched into pressure pump repair. Very interesting and not as complicated as I imagined. Great repair and fix. So because you put the pump on a different engine was the pump the cause of the first engine shutting off or is it something within the engine or carburetor. As Fog Horn Leg Horn would say I say I said was it the pump or engine?Hahaha

I have the same pump a axial cam pump My problem is water goes in but absolutely no water comes out any ideas.

You mentioned the pump oil in this video. You say this has SAE30 but some use a gear oil. Have you ever substituted the gear oil with the SAE 30? Mine says it uses SAE90. Wondering if I can replace it with the SAE 30?

Under comments about valves fot this pump saying Amazon is very broad, can you just put the part number for kits here, my pump has no recognizable number nor manufacturer info to trigger Amazon, thanks again great presentation!

Hey Bruce where can I order those valves? Iam in Winnipeg.

Thanks, I plan to challenge fixing low pressure problem of Generac PW. pls help me with the name of part kit you used for repair

excellent video I just have a question you know what type of oil the pump has because mine was watered a little bit and I would like to know if it can be added and what type of oil is in it thanks for the video and see if you can answer my question thanks

Did the instructions tell you to apply oil to the rubber seals?

Where did you buy the valves

Do you know if CLR will damage O-Rings?

How do they set the pressure at the factory ?

Elly may god I love her , Jefhro are they a live. Love the Beverley hillbillies when I was a kid

What time will the roast be done???? I'm hungry lol

If the engine didn't want to turn once stalled, it's more likely the unloader valve according to other sites. Pressure build up was stalling my engine...but I"d screwed my unloader valve down as if it was the way to increase pressure arbitrarily. Opps. If the valve is sticking, that happens.

02:38 I would have scribed the two parts before disassembly then the decision at 28:33 would be a no brainer. 30:16 Time to make a jig to hold the pump that will mount in the vice.

Good video , but I was always told not to use an extension on a torque wrench , and I notice you use an extension alot with kind of a cumbersome effect , just sayin ! :-) but a good video , I to have wondered about the inerds of a pressure pump , thanks ! :-)

Did you get your finger cut open when you reached out to test the pressure lol

I was surprised that although the pistons are 12mm the bore in the head is 13.25mm.

Bruce, you switched to torque wrench to get more torque, not more leverage 33:35, and I know you know the difference! 😉 Sorry - just my pet peeve about wrench monkeys using the word leverage when it’s actually torque. 😉🔧🔧🔧

Use a 1/4" easy out or 1/4-20 tap. Much easier.

pump says use 85W90 thats gear oil folks. i would not use SAE 30

you forgot the pump oil

plumbers grease would be better

That's a bad practice to put your finger in front of the discharge of the pressure washer because you can inject what ever comes out of your washer.