Recent content by lance8615

I found out that the HP unloader wasn't giving a full stroke, because the stem of the valve that sticks up and is capped by the "hockey puck" was for some strange reason too short and therefore no matter how much pressure was put on it via the diaphragm it wouldn't go down far enough to trip the...

HI Mac, if you mean the coper line that goes from the unloader tower to the head, yes, it is open. I had another question (hope I am not wearing out my welcome)...when I got the unit about 6 yrs ago I rebuilt everthing, rings, bearings, seals, etc. At that time, I put a little "anti-seize" on...

Hi Mac, I was sick for a while and am just now getting back to the Quincy 325 which is not unloading. I did everything you suggested....diaphragms are good, also checked for air flow to the unloader towers; I'm getting strong air flow when the unit is off and no air flow when it is running...

Thanks so much for replying. I'm away from home for a few days but i will get back on it soon. I did notice before that one of the pucks (high pressure suction) can only be pushed down a very small amount, maybe one or two mm. the other can be pressed down a good bit more. Also, I am...

My quincy 325 isn't unloading properly. I replaced the hydraulic unloader which didn't help. After the unit builds pressure to 180 psi and shuts off, all I am getting is a slight escape of air thru the air filter but not the usual "whoosh" that it used to do. So it takes a long time until the...

I have an older Quincy 325 that stopped building pressure. With the compressor running and my hand over the input (where air filter attaches) I feel a rapid pulse/suction/pulse etc. which seems to be about as fast as the unit is running. So I carefully rebuilt the two intake valves and no...

Can anyone give advice on fixing my sick Quincy 325? I rebuilt it a few years ago and it has been working great. But lately the unloader function has become very slow...instead of a sudden rush of air it was just a very slow leak that took a while to unload to where the flywheel would turn...

Does anyone have experience with vintage air compressors? I have a Quincy 325 that I rebuilt and it works great....but lately I've noticed that after it shuts off and unloads (has two automatic unloaders) I can hear and feel air leaking out of the fitting where the air cleaner screws on...and...