This thing only has 4 wires- not the 5/6 you describe. Two must be grounds- as my ohm meter says they go to the metal case of the compressor (chassis ground?). Then there is a plug/connector harness on the side with two wires attached to it- one red, and one white (or yellow- hard to tell). Could it be that one ground and positive are for the compressor, and one positive and ground are for the release valve? This unit appears to have a resonator- looks like those collector cans you can get for aftermarket horns/sirens... No other wires on the thing. There appears to be 3 places for hosing to hook up- so perhaps one pressureized/compressed line for front, rear, and then a vent??? --- Brad Hogg <roadhogg@xxxxxxx> wrote: > there are two wires for power and ground, and two > more for a solenoid that > opens and closes an air valve. These units were > meant to run in a system > with no reservoir. That means, they did the job of > not only inflating but > also deflating the shocks as well. So, my > understanding of the system is > that when the shocks need inflating, the compressor > turns on and does just > that. When the shocks need deflating, the electric > air valve (situated in > the compressor assembly) opens and lets air out. > > With the system I am building for the KImperial, I > won't need that exhaust > valve. I plan to simply install a good old > fashioned mechanical leveling > valve like the ones found on every semi tractor > trailer unit and every bus > on the continent. Those are reliable and easy to > replace if they do go > wrong. To convert to this type of system I do need > two other components > though. I need a reservoir and a pressure switch. > I have a reservoir all > ready. It came out of my 77 NYB parts car. I need > a pressure switch and > the correct fittings etc to plumb it in. Since I am > not using the > compressor to inflate and deflate the shocks > directly (but rather using the > pressure in the reservoir to do that) I need a way > to turn the compressor on > and off when the pressure in the reservoir demands > it. This would work > exactly like the pressure system on your home shop > air compressor. Sure, I > can go buy a new pressure switch but like so many > other projects I do, half > the fun is trying to see if I can scrounge enough > stuff to do it. Those > pressure switches run about $30 too so I want to > leave that as a last > resort. > > ----- Original Message ----- > From: "Jim Gathmann" <jim_gathmann@xxxxxxxxx> > To: "3.3 3.3" <mopar33lv6@xxxxxxxxxxxxxxx>; > "ImperialList ImperialList" > <mailing-list@xxxxxxxxxxxxxxxx> > Cc: "EEK EEK" <eek@xxxxxxxxxx>; "brad hogg" > <chrysler1978@xxxxxxxxxxx> > Sent: Saturday, May 03, 2003 8:18 PM > Subject: Air Compressors > > > I remeber (Brad?) someone memtioning that a good > replacement for 90's Imp air suspension compressors > are used units from 80's Cadillacs. > > Well I picked one up for $10. But I can't figure out > how the thing hooks up- has 4 wires (ground, > +12volts, > and???), and 3 hose hookups.... > > This any similar to the Imperial's OEM compressor? > How > does the OEM one wire and hook up? > > __________________________________ > Do you Yahoo!? > The New Yahoo! Search - Faster. Easier. Bingo. > http://search.yahoo.com > > __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com