cek wrote: ↑Sep 21, 2020 12:25 AM Then a test drive... Nice and cool. Quiet fan! However, I noticed every time the compressor would engage it sounded like a 1940s ford tractor up there. I stopped and took a little video. After about 10 seconds you'll see the clutch engage and you'll hear what I mean:
Jay now has the compressor back at his shop (he's covering shipping) and seeing what went wrong. I had to have my R12 guy come out and evacuate the system again which is a bummer.
I got the AC compressor back from Jay Stratton (again) and got it connected last weekend. It wasn't until this morning that my R12 guy could come by and fill 'er back up. He did so and I'm please to report Jay finally got it right. Kudos to him for taking care of shipping etc... I am out an extra couple hundred bucks due to having to pay my R12 guy twice vs. once, which is a bummer. But I like Jay and am glad he offers his services to the community so am going to just eat it myself and smile.
Jay says he's now built a 1000rpm test fixture so he can test compressors before he starts rebuilding them. Our working theory is the one I sent had wear and the cleaning caused the tolerances to be further off causing the noise. I had another compressor here that I sent him (he bought it from me) and he used the nicer parts from it to finish this one, which he then tested on his bench.
Video of it running: https://www.youtube.com/watch?v=UYq493tCX0Q