I just sent him an email with a link to this…
looks like the compressor motors off the California compressor I have
Indeed they look very similar to those, as well as the Kobalt “quiet tech” pumps, and reading the specs on those similar-looking pumps is what lead me to believe this VEVO unit was a good donor chassis. Also, since my plan was to use the digital gauge controller to limit pump switch deadband, I didn’t need a big tank to swallow the pressure dip between pump cycles. I wanted the smallest tank with two heads that I could find. The VEVO pump checked the boxes, plus it was half the price of the Cal Air unit.
Quincy has been perfect for me. No issues with duty cycle. But if you use it for bigger projects with high volume air tools, then it is better to get the two stage version with 80 gal.
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Hahahah! …was very busy gentlemen, now seeing this! Now, that’s a really cool build!
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BTW, I pulled my Motorguard filter yesterday to have a look and the filter element is totally dry and clean just like the day it was installed, I was TOTALLY, pleasantly surprised!
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How loud is it?
Using a decibel meter app on my phone (for what it’s worth) my Quincy qt54 is 85db. On the same day I tested my little 27 gallon 5 hp annoyingly loud Coleman was also 85-87 db.
The Quincy two stage pump is so much easier on the ears though. Initial startup surge is loud but once it is running isn’t too bad. I can be in my garage with it where i couldn’t with the Coleman.
Wear ear protection and it’s not an issue regardless.
I went out in front of my neighbors homes and didn’t seem too much noise.
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I was at a Fabtech show 4-5 years ago and Polair Air had a display with one of there compressor set up and running. It had the Quiet package installed and it was very quiet. I looked at it and it was nothing more than a insulated box the intake air was attached to. I was always going to build one but never did.
I think you can see it if you go to there website. I have a Decibel meter I will have to check and see how noisey mine is.
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Good point.
There are intake filter/ mufflers available. A lot of noice come from the air intake.
I bought my Dewalt DXCM601 in April 2020 and it has been a good compressor. Last weekend the bolt on the compressor pulley came loose and the pulley came off. I put it back together and everything seems fine but it takes 50% longer to pump up. I would have thought any mechanical failure would make itself known from noise or a hole in the case but it purrs right along. I’ve changed the oil in it regularly. Any ideas?
Key is not aligned and the pulley is slipping?
There is no key, just a tapered shaft. I thought it may have locked up and broke the key. But it didn’t.
Magic marker line on the end and see if it still lines up after running.
No key sounds very weird to me… but, what do I know? 
Normally a tapered shaft needs no key as the friction when the bolt is tightened it will lock it in place. But if the bolt is not really tight it could still slip. The other thing it could be a cracked or broken reed valve.
That’s what I was thinking anything else would probably have destroyed the pump. Do you still sell consumables?
Sure do.
What you may want to do is drain the air remove the line from the pump to the tank and check for any metal. Also remove the check valve in the compressor and make sure there is no metal or anything holding it open. If you find anything you will need to get a upper pump head kit and replace the pump head parts.
Ok thanks for the info. I’ll check it out when I get a chance to drain it.
Line and check valve was clear. Took 13:02 to pump back up from 0 to 155 psi.
Did you make sure the pully was not moving on the shaft?
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