I have my blazer A/c compressor being used as an Air compressor. I put a filter and an adjustable inline oiler on the inlet side. on the outlet side I connected a presure switch, blow-off valve, and quick connect.
Heres a shot of the engine bay showing how I set it up in there.
The inlet filter isnt on in this pic. Didn't have one at the time, I wanted one with 1/2" pipe thread.
the switch and relay, I have the 20A breaker burried in the wiring in there.
and the presure switch, an air guage for compressor side presure, then the regulator and a guage for tank side presure, and finally a quick connect for my air tank which has a blow-off valve.
The oiler is set a little conservative with the oil Flow, after all I don't want it to run out. I need to put on the filter/water seporator in the presure side to keep the oil out of the air tank, but I'm moving all of this into my truck and putting a bypass pulley on the blazer, I dont use it much on my blazer, and my truck is getting lifted and I have a tank I'm going to mount in the bed. I dont have air ride so as long as i keep it oiled I'm sure It will work for whatever I need, considering I use it to run air tools when I go to someones house to work on cars. I have a mobil repair shop in my truck, so the air is nice.
With the engine idled up to about 1500-2000 RPMs I could run my die grinder and that takes a BIG compressor to run. I haven't been able to use it until I did this setup.
I did alot of reading about this and as long as it stays oiled It should be good. One posting said the guy had his s10 compressor running his bags, on all 4 corners, until one day it ran dry and he didnt notice until it was too late.
He said he had been using it for aboiut two years and no problems until he forgot to check the oil.