by Zach Grant L1011jock » Mon Sep 22, 2008 2:52 pm
Kevin,
The copper tubing should not be the cause of your vibration. If you have needle pulsing, then the dampning screw on the MP guage needs to be tightened a bit (it is inside the fitting on the back of the instrument). If your whole guage is vibrating, then you have some excessive airframe vibration, and it would brorbably be a good idea tothink about new engine mount rubbers, and a dynamic prop balance.
-Zach
"Keep it above 5 feet and don't do nuthin dumb!"