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In a message dated 03/17/2003 9:25:43 PM Eastern Standard Time, harrelson@erols.com writes:
Bill,
Thanks for your comments regarding my VM problems.
I havehad a somewhat similar problem several times while flying in rain. The VM1000 manifold pressure gauge started showing erroneous values. Manifold pressure was up to 60 inches (yeah right, I wish). I finally solved this problem by putting a cover on the MP transducer to prevent any water from getting on the circuit board. After doing that, I have had no further problems while flying in rain.
Oh yeah, thanks for reminding me, number 4 anomaly: MP went to zero for 30 seconds as soon as I broke out at 1,500 ft on a VOR approach.
The VM stuff is real nice equipment, but very sensitive. It seems that you've got to keep it dry for it to function properly.
Glad to see that you finally got your "feet wet". Hope that you can fix the problems. The first thing is to try to keep all of the VM transducers dry. I even wrapped some 3 mil plastic around some of them. Not an elegant solution, but it works. Let me know how you tackle the problem.
Sounds like a plan! I believe you are correct in your assesment. I have connections all over the place and am going to use waterproof heat shrink on all these connections.
See you at SunNFun next month!
-grease
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