Markku Posted May 22, 2017 Report Share Posted May 22, 2017 I bought an overhauled dual magneto for my 1978 M20J from Kelly Aerospace. I am having trouble installing magneto so timing is correct. Anyone have a tip for installation. Online stuff is not helping. Quote Link to comment Share on other sites More sharing options...
carusoam Posted May 22, 2017 Report Share Posted May 22, 2017 Welcome aboard Markku. What challenge did your mechanic have? Best regards, -a- 1 Quote Link to comment Share on other sites More sharing options...
aaronk25 Posted May 22, 2017 Report Share Posted May 22, 2017 Is it the internal timing of the 2 mags or external main adjustment that adjust both? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
75_M20F Posted May 22, 2017 Report Share Posted May 22, 2017 Perhaps you should hire a professional aircraft mechanic when it comes to a safety of flight issue? Trying to save a few $ on a DIY job can come with a high price. Quote Link to comment Share on other sites More sharing options...
KSMooniac Posted May 22, 2017 Report Share Posted May 22, 2017 He is a licenced mechanic.Sent from my LG-US996 using Tapatalk Quote Link to comment Share on other sites More sharing options...
OR75 Posted May 22, 2017 Report Share Posted May 22, 2017 Your mechanic should know how to do it - set the prop to the correct degrees BTC - set the magneto to the neutral position - sometimes you have to rotate the gear adaptor (it has 13 teeth !!!) - don't let any drive adapter parts fall into that crankcase !! that would be a lot of work to get it back !!! (having p-leads adaptors for timing purpose helps a great deal) Quote Link to comment Share on other sites More sharing options...
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