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Life happened, and I can count how many times I spent time in garage in the last couple of years. I had the whole thing working for a couple of times and basically ran it for 5 minutes and since then never turned it on. I want to sell this to make space. What is the fair price for this in...

ha ha.. Will post a video for sure if this thing does not explode on me. :shocking:

I checked the temp chart for different weights. I live in San Diego and the compressor will be in garage. Temp is above 10C. So I am expecting SAE 30 will workout.

Thank you for your suggestions. For now, I am anticipating the compressor will be used very sparingly. Probably few times a year primarily for spraying finish on woodworking projects. So I am assuming the hardening of copper will not be an issue in the near future. Still not sure which record...

Life has been busy since I posted the last update. Recap from old posts: I basically got a Quincy compressor and motor (never used) but it was missing plumbing and electrical work. I received a lot of suggestions here and implemented them gradually. Appreciate it very much. :bowdown: Please...

Thanks for this suggestion on the straight edge. I was seeing if I can get away without the alignment plate because I did not have a good drill bits to drill through steel. But I found that I was not getting the right alignment without the alignment plate. So time to buy some good drill bits...

I too was thinking that it is way high for my needs. To save money and not buy any additional parts, I was thinking of using this high turn-off pressure switch and then use a pressure regulator on the output of tank to 110 psi. Now I know that it can be easily adjusted. I will take your...

Thanks for your comments. It is good to know that it can be operated in dual mode. I will set up for start-stop for now and upgrade later to continious mode. You were right on the money with respect to the motor drive sheave requirement. I measured the drive sheave diameter and it is near...

I see number 17 on the shaft that attaches to the large pulley (see attached image). So it may be ROC 17. I do not see a place where I can put the spin on oil filter. I have seen oil filter near the hydraulic unloader in some images of other quincy compressors , but I dont see any fitting that...

Thank you pcmeiners. To look at the crank, I am assuming I should drain the oil and open the inspection plate right? I am confused about the check valve requirement. From the instruction manual (52201-104), I see that the control version L variation requires a external check valve (Please see...

Thank you redmondjp for your suggestions. Helped a lot. The inspection plate that is installed on it is showing a record of change 7. I found a manual for ROC 7. It is from the 1950's. However the inspection plate that is installated on the compressor seems to have a different color from...

Thanks for the details. Appreciate it very much. I took your picture and added some details to get some confirmation. 1) What is the function/names of Pipe 1, Pipe2 (why is it connected to tank), Pipe3, Pipe4? 2) What are the functions of unloading valves. What is the difference between the...

Hello New member here. I had an opportunity to pick up an air compressor on craigslist. It seems to be project that was never finished. I paid 120 dollars for it. It has following parts 1) Quincy 325 compressor (size 41/2 & 21/2 x 3, no idea what these are) 2) Baldor single phase motor...