andrew phillips
Well Known Member
I have one electronic ign and 1 slick mag. Did the mag timing after annual and removal of mag for gasket replacement. Not fun the first time but after 10 or so tries I got it right...I think.
Question, I have never run on the mag only while in flight. It controls the lower plugs. Today I thought I would give it a try. I have the timing set at about 24 1/2 BTDC. 25 is spec. When I switched to the mag the rpm held strong but the EGTs when up quite high. I didn't let them go to see where they stopped. Is this normal? Do I have advance or retard the timing?
Question, I have never run on the mag only while in flight. It controls the lower plugs. Today I thought I would give it a try. I have the timing set at about 24 1/2 BTDC. 25 is spec. When I switched to the mag the rpm held strong but the EGTs when up quite high. I didn't let them go to see where they stopped. Is this normal? Do I have advance or retard the timing?