I described only 4 wires Jim. Power and ground to motor, power and ground to solenoid. BTW, yes, the air comes out that "resonator" you noticed. ----- Original Message ----- From: "Jim Gathmann" <jim_gathmann@xxxxxxxxx> To: <mopar33lv6@xxxxxxxxxxxxxxx>; "ImperialList ImperialList" <mailing-list@xxxxxxxxxxxxxxxx> Cc: "EEK EEK" <eek@xxxxxxxxxx> Sent: Sunday, May 04, 2003 8:38 PM Subject: Re: [mopar33lv6] Re: Air Compressors 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.