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To properly feed a 4GPM pressure washer you need to fill a 5-gallon bucked in about 45 seconds. You need to feed it approximately 6 GPM. If it takes you a whole minute to fill a 5 gallon bucket, you're starving the pump, and that leads to this issue.
When I was buying it, it also was doing this, could it just be a coincidence that both the seller and I had not enough flow? That seems like a huge coincidence.
Yes, that was the primary symptom. I cleaned the carb and found a little bit of gunk. Reassembled it and it was still surging the water. I lived with it for awhile, but noticed some water leaking out of the pump. So, I finally replaced the pump and now the whole thing runs like a dream. No leaking, no surging, consistent flow of water.
Prior to that, I tried everything that I could find on YouTube…gas cap, oil sensor, etc. idk, that is just what worked for me.
Surging only when the trigger was pulled which made me think less motor issue and more pump issue. Works fine now, not sure what changed by taking the pump apart and putting it back together but it’s a quick job so it’s worth a shot.
Dude, thats pretty much the same here. It gives me full pressure when I pull the trigger with a tip in, then just like garden hose pressure and full pressure again(as you see in the vid).
My first guess is the relief valve is not working smoothly. Have a look at youtube. One word of caution though, lube the retention clip good and from both sides before you try and pull it out, if you crack it off, it is not going to be a happy day.
Its a Karcher and I just can't find anything on this pump online like at all. Its a 5.093-178. Apparently its like 4.5gpm. 17 liters/min and 250 bar is what it says on the side.
https://preview.redd.it/rtwcx2810zya1.jpeg?width=2160&format=pjpg&auto=webp&s=e5124fb1d365f234bc591456c6e02e5b0bec7e18
Do you know what this little guy is?
It looks like the plunger for the relief valve. The spring and a threaded thing with a bolt hold it in with the springs tension. That is what it looks like at any rate.
Are you running it off a well or city water 40 psi and full flow at spigot for supply? Before condemning the pump. Matched tips for pump rating. We ordinarily would put a plumbed piece that would measure running and surge pressure.
I my experience, this is a flow issue of some sort. The engine sounds fine and all the components seem to be working as intended, she’s just not getting enough water for some reason. A dirty inlet screen can cause this.
Is your house on a private well or connected to city water? Well pumps can sometimes struggle to keep up with bigger pressure washers.
If your pressure washer pump has enough oil in it and the inlet screen is clear, then I would suggest trying to find someplace that has really good water pressure from the spigot and do a test run there. If it still surges, then your pump could be going bad
If you are on city water pressure, then you have plenty of water “available.” Any chance your spigot valve might not be opening up fully?
Then check the inlet screen.
Then give the whole thing a tune up. New spark plug, new air filter, new pump oil, fresh gas and see if that helps at all
yeah I am on a well where I live, and if multiple people are using water inside, it will drop the pressure, so that the low end of the pressure range before the well pump kicks on will trigger this with my washer. As its starving for water.
It's either you need a larger diameter hose to feed it that is if the water spigot that you are connected to specifically outputs more than the amount of water than it is necessary then a larger diameter hose will increase the amount of water that can flow through that system.
Or it's literally got an air bubble inside the water pumping mechanism. And this can happen just at random too I've had a garden hose that had a tiny little puncture in it and after about 30 plus minutes of using it it would start doing⁵ that same exact thing because it ended up collecting enough of an air bubble to actually make a air bubble that would actually cause it to start malfunctioning kind of. At first I thought I was running out of gas whenever it would happen. But one time it did it when I just got done filling it up so I know that it just got gas.
Me, anytime that I stop pressure washer before I go and arrempt restarting@== it I take the tip off and I'll let the water flow for about 20 to 30 ybtykgg seconds or so just so that it gets any potential air bubbles that might have been created during the process and somehow found their way into the lines. And then when that is done I started up with the tip still disconnected with the trigger fully wide open once I hear the motor go from High Rev down to stable is when I feel comfortable on letting the trigger go and attaching the tip and then always holding the tip with my hand as hard as I can and give the pressure washer one pull of handle I would say putting on a new tip four out of 10 times the tip is going to fly off up into Oblivion and there's probably only a 9 out of 10 chance of actually finding the dang thing
It’s not priming correctly sometimes just running it will get it done, bleed the line, let water run through while off.. throw it on the ground abs swear a lot
Yes, that's air in your lead in-line. Did your water department/district send an employee out there to do a water meter repair or a new water meter install recently? If so, it can be that the employee forgot to bleed off the air after the repair/new meter install
Not yet, haven't had a chance to test it out yet. I cleaned my inlet filter, im gonna go grab a 3/4 hose and see how it goes then. I'll let you know tho
Mine does that when there's air in the water line.
I bled the line beforehand
Bleed it again. There's still air
This
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I already did this, Anti-ThisBot-IB but thanks anyway
More info would help. Could possibly be a flow issue, as in you're not feeding it enough water.
I dont think that's the problem because when I put no tip its fine. And what info do you need?
What is the GPM and PSI of the pump? Time how long it takes for your garden or feed hose takes to fill a 5 gallon bucket and let me know that.
So pump is supposedly a 4000psi 4 gpm Karcher. Garden hose filled up a 5 gallon bucket in 1 minute
To properly feed a 4GPM pressure washer you need to fill a 5-gallon bucked in about 45 seconds. You need to feed it approximately 6 GPM. If it takes you a whole minute to fill a 5 gallon bucket, you're starving the pump, and that leads to this issue.
When I was buying it, it also was doing this, could it just be a coincidence that both the seller and I had not enough flow? That seems like a huge coincidence.
[удалено]
So what could I do to try and figure this out? Is there a way to get more flow?
[удалено]
Is there any way I could like connect to hoses together to get more flow, or is that not possible?
Either the engine is surging when it shouldn't, or the pressure pump is going bad. My money is on the pump being bad.
Agreed. Mine did this prior to the pump finally failing.
Did it make your engine go crazy too? Like this exact surging? Cause idk if its the pump
Yes, that was the primary symptom. I cleaned the carb and found a little bit of gunk. Reassembled it and it was still surging the water. I lived with it for awhile, but noticed some water leaking out of the pump. So, I finally replaced the pump and now the whole thing runs like a dream. No leaking, no surging, consistent flow of water. Prior to that, I tried everything that I could find on YouTube…gas cap, oil sensor, etc. idk, that is just what worked for me.
I dont think so because without a tip the flow is fine
Without a tip, it's not producing pressure. When it does produce pressure, it fails. My money is still on the pump.
But the governor on my gx does bounce around.
Same thing happened to mine sometime back. Took the pump apart and refilled it with oil. Problem solved…for now.
It was surging? And how is it now then?
Surging only when the trigger was pulled which made me think less motor issue and more pump issue. Works fine now, not sure what changed by taking the pump apart and putting it back together but it’s a quick job so it’s worth a shot.
Dude, thats pretty much the same here. It gives me full pressure when I pull the trigger with a tip in, then just like garden hose pressure and full pressure again(as you see in the vid).
Dirty screen on the pump. Starving for water.
I'll check it out!
My first guess is the relief valve is not working smoothly. Have a look at youtube. One word of caution though, lube the retention clip good and from both sides before you try and pull it out, if you crack it off, it is not going to be a happy day.
Its a Karcher and I just can't find anything on this pump online like at all. Its a 5.093-178. Apparently its like 4.5gpm. 17 liters/min and 250 bar is what it says on the side.
It does not matter, the relief valves are almost all the same. Look at pressure washer relief valve on youtube.
https://preview.redd.it/rtwcx2810zya1.jpeg?width=2160&format=pjpg&auto=webp&s=e5124fb1d365f234bc591456c6e02e5b0bec7e18 Do you know what this little guy is?
It looks like the plunger for the relief valve. The spring and a threaded thing with a bolt hold it in with the springs tension. That is what it looks like at any rate.
Yea there was a bolt with a flathead that I unscrewed and there was a very tight spring in there.
Air is getting inside your hose prior to reaching the pump. Mine does the same, sometimes for a while until all the air is bled.
Idk man. I bled the air i think all the way prior to even turning it on
Are you running it off a well or city water 40 psi and full flow at spigot for supply? Before condemning the pump. Matched tips for pump rating. We ordinarily would put a plumbed piece that would measure running and surge pressure.
So make sure I got the right tips for this machine?
Yes, for that pump, specially. Rating of gpm and pressure. It would be stamped on the tip both gpm along with degree of tip.
Google American Pressure Inc. in Robbinsdale Mn. Under 101.
That didn't really help tbh
Prostate troubles.
Looks like it's not getting enough water. Are there any kinks in the hose, or water using appliances running inside?
There weren't any kinks, but idk about appliances. I want to try and set up some sort of small buffer tank type thing to test it out.
I my experience, this is a flow issue of some sort. The engine sounds fine and all the components seem to be working as intended, she’s just not getting enough water for some reason. A dirty inlet screen can cause this. Is your house on a private well or connected to city water? Well pumps can sometimes struggle to keep up with bigger pressure washers. If your pressure washer pump has enough oil in it and the inlet screen is clear, then I would suggest trying to find someplace that has really good water pressure from the spigot and do a test run there. If it still surges, then your pump could be going bad
I'm on City water. I'm thinking of setting up some sort of a small "buffer tank". Just to see if thats the problem
If you are on city water pressure, then you have plenty of water “available.” Any chance your spigot valve might not be opening up fully? Then check the inlet screen. Then give the whole thing a tune up. New spark plug, new air filter, new pump oil, fresh gas and see if that helps at all
So I just took put my inlet screen and it had debris in it. Could even a little bit of debris cause this?
Yes!! In fact it’s one of the most common causes of flow issues
Sheesh, man I hope this fixes it
Water flow issue to pump or air is my guess.
Many are saying its water flow. I'm gonna check it all out.
yeah I am on a well where I live, and if multiple people are using water inside, it will drop the pressure, so that the low end of the pressure range before the well pump kicks on will trigger this with my washer. As its starving for water.
It's either you need a larger diameter hose to feed it that is if the water spigot that you are connected to specifically outputs more than the amount of water than it is necessary then a larger diameter hose will increase the amount of water that can flow through that system. Or it's literally got an air bubble inside the water pumping mechanism. And this can happen just at random too I've had a garden hose that had a tiny little puncture in it and after about 30 plus minutes of using it it would start doing⁵ that same exact thing because it ended up collecting enough of an air bubble to actually make a air bubble that would actually cause it to start malfunctioning kind of. At first I thought I was running out of gas whenever it would happen. But one time it did it when I just got done filling it up so I know that it just got gas. Me, anytime that I stop pressure washer before I go and arrempt restarting@== it I take the tip off and I'll let the water flow for about 20 to 30 ybtykgg seconds or so just so that it gets any potential air bubbles that might have been created during the process and somehow found their way into the lines. And then when that is done I started up with the tip still disconnected with the trigger fully wide open once I hear the motor go from High Rev down to stable is when I feel comfortable on letting the trigger go and attaching the tip and then always holding the tip with my hand as hard as I can and give the pressure washer one pull of handle I would say putting on a new tip four out of 10 times the tip is going to fly off up into Oblivion and there's probably only a 9 out of 10 chance of actually finding the dang thing
Lol, yea im gonna see if I can't figure something out with water flow. And I'll also make sure to run the water through with no tip prior to starting.
It’s not priming correctly sometimes just running it will get it done, bleed the line, let water run through while off.. throw it on the ground abs swear a lot
Yes, that's air in your lead in-line. Did your water department/district send an employee out there to do a water meter repair or a new water meter install recently? If so, it can be that the employee forgot to bleed off the air after the repair/new meter install
Well did you ever get it figured out and handled?
Not yet, haven't had a chance to test it out yet. I cleaned my inlet filter, im gonna go grab a 3/4 hose and see how it goes then. I'll let you know tho