Presurization
Belated greetings fellows.
Further to my pressure problem question we now have things working. It turned out in the end to be the bell in the aft controller was cracked and misshaped. of course in searching that out as it was not easily visible we found all the other little leaks. Had to replace two control cable seals and a variety of small leaks in the heat exchange system.
your list of places to look was very helpfull. We now have full differential pressure.
See s-tec autopilot thread for other interesting item.
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