air compressor

So I got an air compressor at an auction for probably too much money and it makes a weird resonating sound. It is a California air 9010d and it has an air dryer built in, which is why I bought it. I couldn't test it because the pressure regulator switch and gauges were broken, I'm guessing it...

I have decided to replace my 1950's Curtis 80gal air tank. I will keep the compressor, because it is working great but I don't trust the tank anymore. The current tank is a vertical tank. My question is if there is any advantage to vertical vs horizontal air tanks with compressors mounted on...

Some 15 years ago a relative of mine gave me a broken air compressor for parts. It was a small unit (0.5 HP motor) with separate motor and compressor over the air tank unit similar to the following (internet) photo. I used the air tank right away, as I had an all-in-one model with a small...

I've been searching for an air compressor on Craigslist and eBay for over a half a year, to no avail. I was thinking of giving upend just buy new, as most people seem to want 80% of the cost of new for a filthy, worn-out, junker. Then yesterday I found an ad for a Clean, well maintained, 5hp 80...