Fading Pumping Issue Quincy 325
(Burgaw, N.C. )
Quincy 325 air compressor (Photo: www.yabe.chudov.com/Quincy-325-Compressor/)
I have a older Model 325 2 cylinder piston air compressor. It has given years of good service but recently has started doing something strange. It will come on normally when the pressure goes down, but after pumping for a minute or so, it stops pumping even though it is still turning. It will do this for several sconds (8-10) and will then start pumping again. It will do this until it will eventually pump back up to cut off pressure. I feel like there may be valve sticking but am not sure. I have cut it off until I figure out what is wrong and fix it.
Hello Lee... given that I'm a bit slow on the uptake, when you say "It will come on normally when the pressure goes down, but after pumping for a minute or so, it stops pumping even though it is still turning." what is still turning?
You might also want to check any belts for proper tension.
Please post a comment here with more info if you can.
Gilbarco compressor -Quincy pump not maintaining pressure?
(Winnsboro SC )
When I removed air filter noticed air leaking thru intake?
I have a Gilbarco compressor that is utilizing a Quincy pump.
I am having trouble maintaining pressure while running tools.
I was told to check the air filter and belt tension and in doing so I removed the air filter (intake).
When I did so I noticed the sound of leaking air and discovered that air is leaking back thru the intake.
What does this signify and could this be a symptom of my problem? If so what is the solution?
Air coming back out of the intake valve on any air compressor suggests that the intake valve is compromised. Depending on how long it takes for the compressor to refill, if it is quite a bit longer than ordinary, the longer it is the more serious the intake valve problem.
The solution is, of course, to dismantle the pump and replace the valve. It might have a valve plate containing both the intake and pressure valves, or they many be individual valves, I am not sure, not having ever taken a Quincy compressor apart.
In terms of parts, you will have to identify the pump ( a plate or something? ) and then contact Quincy at www.quincycompressor.com to see if they can direct you to parts.
I did a quick search and found some afternmarket sources too, yet you will will need to know the details of the pump to chase down parts.
Model 216 early 80's stops building at 60psi
Hello, got a model 216 quincy , it's not building pressure sometime and stops at 60psi. It I stop and start it it might build to the switches cut off point. It sounds like its free wheeling so to speak? When it does not build. Really need to get it going fast! Thanks . Walt.