Join Date: Jun 2019
Location: Niles, MI
Posts: 8
Question Someone please help on my reconditioned Quincy 325
I purchased a Quincy 325 roc 12 about 2 years ago and I have spent over a year rebuilding this and it is done. I stripped all of it, including the tank to bare metal and painted and powder coated with HiTemp powder coat. Looks great. Bought the rebuild kit that included the rings, bearings all gaskets and valve seats with springs. All of the valves and unloaders are spotless and everything is torqued down correctly.
NOW my issue. I am trying it out and this is what happens. Starts normal, oil pressure goes to 25psi and 80 gallon tank fills slowly. btw I have dual unloaders and after about 7 minutes it hits 125psi then unloads down to 90. That seems pretty slow. Is that a reasonable time?
That is one question, now the above actions of the compressor changed after about an hour and a half of running it with the cycling on and off at the set pressure values.
Today I turn on the compressor, again after running it for only 90 minutes since the complete rebuild and what is happening now is not right at all and I don't know where to start troubleshooting,
Now after I turn it on, it starts building pressure, oil pressure goes to 30psi and then it keeps raising! It is building pressure like crazy in the crankcase and the oil gauge pegs clockwise all the way and when it builds to 125psi in the tank, it unloads down to 90psi, with oil psi still pegged, and when it goes to start building the pressure up again, the compressor stalls and will not allow the motor to spin causing it to lock up the motor...The 5hp new Baldor motor will keep stalling because I am not able to manually turn the compressor pulley!!! So, I shut the power off completely and manually release tank pressure and turn compressor back on, it is now unstalled and the motor starts up again.. When it starts again. Oil psi starts at 30psi and continues to climb to where the gauge is pegged then all of a sudden BANG!!!!!! the dipstick shoots out at rocket speed and strikes the air cleaner above it. Scared the holy crap out of me. Just had open heart surgery last year, so that didn't help.
After I composed myself, made sure I wasn't bleeding, and went in and changed my newly stained drawers.....I am asking the gurus.....What the crap might be happening???? It of course is not releasing pressure somewhere that was working before. I never changed the oil pressure setting, which was running around 25psi when the 325 was running correctly.
Has anybody had this happen on a 325 or understands the operation of a 325 enough to assist me? I would truly appreciate as I have spent over 150 hours reconditioning this compressor.
Thank you to all who might respond!!!
Location: Niles, MI
Posts: 8
Question Someone please help on my reconditioned Quincy 325
I purchased a Quincy 325 roc 12 about 2 years ago and I have spent over a year rebuilding this and it is done. I stripped all of it, including the tank to bare metal and painted and powder coated with HiTemp powder coat. Looks great. Bought the rebuild kit that included the rings, bearings all gaskets and valve seats with springs. All of the valves and unloaders are spotless and everything is torqued down correctly.
NOW my issue. I am trying it out and this is what happens. Starts normal, oil pressure goes to 25psi and 80 gallon tank fills slowly. btw I have dual unloaders and after about 7 minutes it hits 125psi then unloads down to 90. That seems pretty slow. Is that a reasonable time?
That is one question, now the above actions of the compressor changed after about an hour and a half of running it with the cycling on and off at the set pressure values.
Today I turn on the compressor, again after running it for only 90 minutes since the complete rebuild and what is happening now is not right at all and I don't know where to start troubleshooting,
Now after I turn it on, it starts building pressure, oil pressure goes to 30psi and then it keeps raising! It is building pressure like crazy in the crankcase and the oil gauge pegs clockwise all the way and when it builds to 125psi in the tank, it unloads down to 90psi, with oil psi still pegged, and when it goes to start building the pressure up again, the compressor stalls and will not allow the motor to spin causing it to lock up the motor...The 5hp new Baldor motor will keep stalling because I am not able to manually turn the compressor pulley!!! So, I shut the power off completely and manually release tank pressure and turn compressor back on, it is now unstalled and the motor starts up again.. When it starts again. Oil psi starts at 30psi and continues to climb to where the gauge is pegged then all of a sudden BANG!!!!!! the dipstick shoots out at rocket speed and strikes the air cleaner above it. Scared the holy crap out of me. Just had open heart surgery last year, so that didn't help.
After I composed myself, made sure I wasn't bleeding, and went in and changed my newly stained drawers.....I am asking the gurus.....What the crap might be happening???? It of course is not releasing pressure somewhere that was working before. I never changed the oil pressure setting, which was running around 25psi when the 325 was running correctly.
Has anybody had this happen on a 325 or understands the operation of a 325 enough to assist me? I would truly appreciate as I have spent over 150 hours reconditioning this compressor.
Thank you to all who might respond!!!