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Gasoline in manifold pressure gauge

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planebuilder

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Midland Ontario Canada
Some history:
I have a Falcon
MP1035-3 manifold pressure gauge in the Starduster. I was flying and the gauge dropped to "0", not 29.xx, zero. I asked the local AME and he said it probably got a drop of oil in it. I took the line off the back and a drop of gasoline came out. The gauge needle returned to 29" . Thinking back, I had flooded the engine during start up, so that will be the source.
I want to be sure its dried out, I called Falcon and hit a brick wall. "If your not an instrument technition you can't talk to one of ours!" Has anyone removed the back of one of these to look inside?:confused:

 

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