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[GMCnet] Help Appie Fix his Electrolevel 1 [message #207871]

Wed, 15 May 2013 23:33

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

G'day,

There was so much discussion in Appie's autolevel email that did nothing to help him troubleshoot his problem that confused the
issue I decided to start a new thread. Below is a chronological listing of the emails he has sent in. Those of you who wish to
discuss the merits of the "autolevel" system that threads all yours; please don't start in commenting in this one. THANKS!

1) Olga has these fine Quadra bags, but they can't find a riding height.
When I set the system at "auto" she goes al the way up.
I tried to set it at a certain level, loosen the adjustment nuts, find the free play and tighten them again, without any difference.

2) Is there any way to check the valves and solenoids? Would like to be sure they are a problem before buying new?

3) When I first took Olga for a test ride she pulled to the left quite badly because she was much higher on the right.

4) Please correct me if I am wrong. Today I took of the connection arms. In my understanding it should be like this: System in auto.
If I raise the valve it should take in air and if I lower the valve it should let air out. I understand there is a delay of a few
seconds. Neither valve lets out air (lowers) when I pull it down. Also both go on raising with the valves in the detent position
both sides react on the raise and down switches.

5) Well its end of the day here and I am more confused then ever. Let me give you a over view of the situation. Today I installed a
new compressor (that came with Olga) seems to work fine and all seems to be pretty tight.

The switches seem to work : rise on raise, fall on lower and hold on hold
The problem is in "auto"
The left side will continue to rise, even, on one occasion steeling air from the right side while the compressor was taking a break.
The right side seems to work, but I am nor confident as the valve did not react on manual manipulation.

I took of the regulating arms end tried to manipulate the valves by hand. Neither seem to react at all

6) My switches are in the middle dash and all switches seem to work right. I will go through the troubleshooting once more and
check. the diodes

7) If one side keeps inflating (no matter what else is wrong) it can only be the control valve that is not working correctly.

8) Working around Olga I found out several things:
There is a air leak but I will deal with that later
The valves seem to work ( after some manipulating)
The problem seems to be a strange connection between left and right side
When I push the valve to lower on left side, it lets out air at right side
If I auto rise left side it takes air from both sides, so right side does not go up ( much) fooling the system to continue putting
in air that then travels to left side.

I figure either the PO installed the quadrabags wrongly or there is some electrical shortcut?

Appie would you like to add anything?

Regards,
Rob M.

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426