My Vevor stopped building pressure, checked all the connections and the burst disk. Looks like I need to take it apart but with no manual or video's I don't want to just dive in. Anyone repaired one of these yet?
Anyone have any repair experience with a Vevor dual fan model 4500psi model?
- Thread starter Raydee38
- Start date
Does the compressor seem to run faster then before but not build pressure?
There's no point in opening that particular compressor up unless it came with or you can source parts for it, especially the low and high pressure piston seals.
There's no point in opening that particular compressor up unless it came with or you can source parts for it, especially the low and high pressure piston seals.
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Rectangular box oil-less, waterless high-speed fan only cooled compressors have a year to year and a half life expectancy, or 20-25 hours. Rebuilding success is reported to be low. WM
Well this one def stopped prematurely. If I had to guess I would say it has maybe 3 babied hours on it.
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I'd recommend buying the tuxing double cylinder compressor it will fill tanks very fast and will fill guns very fast just watch the gauge carefully. Also their easy to repair and easy to get parts for you can get every part you need for them.
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Looks like I am going to need some parts. Pretty simple to tear down, but parts might be hard to find.
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Looks like this piston (or shaft) is completely worn out. And the internal wall of this disc has very rough machining. I assume the piston was inside the disc, and the shoddy quality of this part machining caused premature wear and tear. Correct me if I'm wrong, please. Looks like a manufacturing defect to me.
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Very well could be. I used this compressor maybe 20 times for 3 min or less each time to fill my small PCP pistol tanks from 100 bar to 200 bar. I never let the temp on the gauge get over 115*F. I sold the compressor to a nice guy that was local and looking for a compressor. I told him these cheap Chinese compressors need to be babied. He had it about a week and called me to say it was no longer building pressure. He said he only ran it for small periods and let it cool and was only filling the small tank on his Notos and I believe him. I am just going to give him back his money and see if I can find the parts online or through Vevor. I will keep it to fill my small bottles or it will go in the trash.
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That's very low hours even for a Chinese compressor to fail on its own, definitely a defective one. And it's an exceptional gesture that you took the compressor back after selling it, kudos! If you can't fix it, you might just give it away for parts if someone else has the same one here. Though, this shaft wear might be the common problem with these units.
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I've the lesser Vevo that broke and just found a successful jerry rig that I'll post about soon, maybe it'll work for you too.
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First contact with Vevor went about as expected....unit is 3 months out of warranty and there are no serviceable parts. I could literally fix it with parts in less than 20 minutes. I will not buy a single thing from this company again. Ohh well, live and learn. I am hoping if my CS4 dies I will be able to get parts for it.
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Is that the lower housing that's scored? I think it's losing pressure there, right?
Is there any kind of automotive babbit material you can put in there? I think if you can seal that area it'll build pressure. And look at how it's assembled, I think between those four bolts, even the slightest misalignment caused that scoring. And you can't put any high pressure grease inside that chamber, not other than silicone based, I think. That piston though, it's scored badly, I think even if you get that lower washer replaced, it's going to leak around the piston, at least eventually.
You might see about getting a Tuxing cylinder, they sell them, perhaps it can replace that bad cylinder. Or there's summat like this, I found it after just a cursory search, so there's prolly others:
Is there any kind of automotive babbit material you can put in there? I think if you can seal that area it'll build pressure. And look at how it's assembled, I think between those four bolts, even the slightest misalignment caused that scoring. And you can't put any high pressure grease inside that chamber, not other than silicone based, I think. That piston though, it's scored badly, I think even if you get that lower washer replaced, it's going to leak around the piston, at least eventually.
You might see about getting a Tuxing cylinder, they sell them, perhaps it can replace that bad cylinder. Or there's summat like this, I found it after just a cursory search, so there's prolly others:
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That piston housing is basically all one needs to generate high pressure, the rest of the unit is just a motor and pressure control mechanism.
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It’s kind of a long shot, completely different construction on the pump. But surprised Tuxing is selling inteenal parts like this.
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Well I am a bit shocked and will take back any bad info I said about Vevor. After emailing them a few times back and forth, here is the response I received from their tech department. The new cylinder does look like it has been changed a bit but it looks like it should work just fine. I guess I will see when it comes in.
Dear customer,
Thank you very much for contacting VEVOR Support Center.
We have received the picture file you provided. After confirming, the problem of your product can be solved by replacing the cylinder parts, we will send you the corresponding parts for free, you can confirm it through the picture below, please wait for 10-15 days patiently, do you need to change the information of the delivery address of the parts?
If you have any further issues, please feel free to contact us.
Best regards,
VEVOR Support Team
Dear customer,
Thank you very much for contacting VEVOR Support Center.
We have received the picture file you provided. After confirming, the problem of your product can be solved by replacing the cylinder parts, we will send you the corresponding parts for free, you can confirm it through the picture below, please wait for 10-15 days patiently, do you need to change the information of the delivery address of the parts?
If you have any further issues, please feel free to contact us.
Best regards,
VEVOR Support Team
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Wow, that's really good news! At the end of the day, Vevor is actually standing behind their products too. Vevor just stepped up its reputation in my book. Ok, my backup air compressor will be Vevor for sure now. Thank you for keeping us up to date with this matter!
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Parts came yesterday, they included more than what was originally pictured. It looks like the mounting plate and the cylinders have been slightly redesigned. The temp probe also has been moved from the cooling fins to the cylinder head. The only thing they did not include is a fitting for the air intake, the old style was a small nipple that will not fit the new head. I sent them an email but I am sure I can fab something up that will work just fine.
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