Help again!
Well I was installing a new heading indicator and accidentally knocked the wires off the back of the vacuum switch connect to the heading indicator.
I have a big contradiction. The yellow mark is for low vacuum. There seems to be a black mark next to another screw port.
However, the appearance of the black mark contradicts the drawing from Sigma-Tek attached. Anybody have this on their 60's M20C and can check?
Thanks in advance!
Regards,
J
22-1280-04.pdf