General Boards > Technical Support

1999 Contessa Magnum B-Series Air Bag Ride Height Settings

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Mike Gineris:
Eric,

You're right.  I not only had different orientations, but different valves in each location and the only one installed correctly was the Original Haldex on the drivers side rear.  I now have three new Haldex Valves installed as intended with Arrows pointed correctly and Linkage at right angles.

Eight New Bags, Manifolds, Air Bleed Valves and Ride Height Valves.  Still have a LEAK and it bleeds down in just a few hours.  I plan to move on to the Governor and look for an Air Dryer which I think I don't have. 

Eric Maclean Co-Admin:
Mike
which tank or gauge goes down first the green or the orange .
A couple of other places to look
1) check the air control valve for the step well block off slide, if the slide cylinder is leaking internally the control valve will be constantly exhausting a small
    amount of air.
2)) check the exhaust brake solenoid to make sure it isn't leaking a little internally.

3) check the air dryer purge valve at the bottom of the air dryer

4) check the foot brake treadle valve for small leaks at the plunger and at the vent below

5) check for leaks at the compressor air governor

If your leaks seem to still be in the air suspension you could install shut off valves at the tank to isolate which circuit is leaking front or rear.
There are two supply lines (blue) from the tank they each run to the cross member above the transmission where you will find a pair of Haldex air pressure regulators ( set at 70 PSI ) from there one line runs to the rear ride height valve and the other runs to the front ride height valve.
When looking for leaks those pressure regulators are often over looked.
Also the air manifolds for the air bags are a plastic manifold with push fittings which often leak they can be replaced with several brass DOT compression fittings.

Hope some of this helps
Eric

Mike Gineris:
So sorry Eric for the late reply!  I just noticed the message.  I'm 63 and and still work a 40+ hour week so time is precious. I replaced all air bag manifolds (Leaks at ALL of them) with DOT compression fittings a couple weeks ago.  Both green and orange drop together...I think.  I don't think I have an Air Dryer at least I have yet to find it and I know it's a good 10 inches in diameter.  I know your coach is very much like mine and I can't say enough how thankful I am for the advice! I will check the Governor (attached to compressor inboard of battery tray I think), Regulators, Exhaust Brake, and Slide Cylinder....Lot's of stuff but I'm learning as I go and that's fabulous.  Nice to understand functionality.

Eric Maclean Co-Admin:
Michael
Your air dryer should be mounted just behind the battery bank and looks like this .


https://beaveramb.org/forum/index.php/topic,11681.msg78301.html#msg78301

Eris

Mike Gineris:
I see the lines running up to it but can't see the compressor/governor or Air Dryer.  Very challenging area to see.  Will try from inside the coach under the bed.

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