- Joined
- Nov 28, 2016
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- 2,291
I looked at an air compressor that is for sale this morning. It is a Porter Cable 80 gallon 2 stage, model # CPLKC7080V2. We checked the oil and turned it on. The seller said thats the first time its been powered up in at least 10 years.
We let it run about 5 minutes, it was pumping air, but, in my opinion, way too slowly. In 5 minutes, the pressure pumped up to around 100 psi. The compressor is rated at 175 psi... I'm guessing 10 minutes or more to reach shutoff, maybe?
It didn't appear (to my highly calibrated 'eyeball tachometer') to be turning the 3450 RPMs that the tag on the motor claimed... maybe half that...
Also, I removed the pulley guard and turned the pump by hand, and could not feel hardly any compression... but I'm not sure how much compression should be felt in a compressor pump.
It was pushing a good bit of air out of the crankcase breather... more than I thought it should...
Not being a compressor expert, I decided that I didn't feel comfortable paying the $500 he was asking... at least without doing a little research first.
Any ideas, opinions, or info is appreciated.
-Bear
We let it run about 5 minutes, it was pumping air, but, in my opinion, way too slowly. In 5 minutes, the pressure pumped up to around 100 psi. The compressor is rated at 175 psi... I'm guessing 10 minutes or more to reach shutoff, maybe?
It didn't appear (to my highly calibrated 'eyeball tachometer') to be turning the 3450 RPMs that the tag on the motor claimed... maybe half that...
Also, I removed the pulley guard and turned the pump by hand, and could not feel hardly any compression... but I'm not sure how much compression should be felt in a compressor pump.
It was pushing a good bit of air out of the crankcase breather... more than I thought it should...
Not being a compressor expert, I decided that I didn't feel comfortable paying the $500 he was asking... at least without doing a little research first.
Any ideas, opinions, or info is appreciated.
-Bear