I tried a forum search and could not find what I needed.
A few questions about an older vacuum system please.
I am tidying up an older instrument vacuum system and trying to get it working optimally - replacing fraying hoses and filters ect.
1. How does one check for a vacuum leak in the system?
I know how to check for pressure leaks, and pitot static leaks, but not aircraft instrument vacuum.
2. I understand teflon tape, and pipe dope are a big NO for the barbed fittings that screw into the back of the flight instruments (attitude indicator) . How then does one get a good seal on the fittings that are screwed into each instrument?
A few questions about an older vacuum system please.
I am tidying up an older instrument vacuum system and trying to get it working optimally - replacing fraying hoses and filters ect.
1. How does one check for a vacuum leak in the system?
I know how to check for pressure leaks, and pitot static leaks, but not aircraft instrument vacuum.
2. I understand teflon tape, and pipe dope are a big NO for the barbed fittings that screw into the back of the flight instruments (attitude indicator) . How then does one get a good seal on the fittings that are screwed into each instrument?