It sounds like you are used to using quality equipment. This means spending several thousand dollars minimum to end up happy. I used a 5 HP single stage Campbell Hausfeld 60 gallon vertical compressor for about 20 years. Then I thought I lucked into a Dayton, 2-stage 6 HP 80 gallon vertical compressor. It has full pressure lube and a spin on oil filter. Well, the motor was shot. So I had it repaired. Then It wouldn't create any pressure. Ended up having to buy a new cylinder head package because they don't service the reed valves anymore. Long story slightly shorter, I spent $750.00 on parts to fix it up like new. At first I was pretty pissed at all the hassle and expense. 6 years later, it was a good investment. It is quiet, makes 175 PSI if needed, will likely outlive me. I would fix the one with the crankshaft issue if parts are available. Everything new unless you get into an industrial grade unit is low grade junk that may last 5 years in daily use if your lucky.
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