vtdeucedriver

did a quick brouse on the web (books are packed) finding a continental engine, 6 cylinder????? assuming aircraft type with dual or single mag. What dixie said is exact. mags create there own spark, The ignition switch will create a open in the circut and that mag will be hot or should create a spark. Say for example, twin mags. Mag switch off, both grounded, run, both open. Dont know what type of mag it is. Maybe Bendix..............there should be a wire, would be shielded to the mag. Disconnect that and do a contunity check. check and see if its open with the swich in run or whatever it might be. then off, it should be grounded. I should go to my local museum this week and see if they can open up there M75 for me to look at........then maybe I can help more. post pics of the beast!!

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1951 M37 MVPA #17452
1953 M62 GMMVC Member
1964 M151A1 Associate Member of the ATAV
1968 M151A1 Founder of:
1967 M54A2C The Rolling Line Haul Museum
1968 M52A2
1967 M127 Trailer

"This was the Noblest Roman of them all"
Antony, Act 5 Scene 3, Line 68 Julius Ceasar