Kwixdraw Posted January 8, 2010 Report Posted January 8, 2010 I'm putting together a sort of wish list for engine overhaul time. I would really like to get away from the A3B6D and just drop the D. Anyone know if this requires an STC and then of course is anyone using the Laser ignition? Quote
Rustler Posted January 9, 2010 Report Posted January 9, 2010 Kwixdraw-- The conversion from an A3B6D to A3B6 does not require an STC. I did that exact thing this past summer, using Western Skyways. They did not charge me a core-differential charge, and, because we did not send my old engine back until the new one arrived, I had more flying time. The engine now has 50+/- hours on it and is perfect. Don't know about the LASAR ignition. Quote
Kwixdraw Posted January 9, 2010 Author Report Posted January 9, 2010 Thanks Rustler. I thought I had read that in another post but wanted to confirm it as far as the the A3B6 engine is concerned. My aircraft has been down so long there is no more flying to be done in it before a major refurb so I'm trying to get my ducks in a row before I get seriously into it. Quote
Rustler Posted January 10, 2010 Report Posted January 10, 2010 If you look at the threads Engine Overhaul/Exchange and The Saga Continues, found on page 2 of the Modern Mooney listings, you can see my experience with the engine. There were a lot of good suggestions/questions on those exchanges. I thought I also asked about the LASAR ignition system (electronic ignition?) some time ago but cannot find the thread. Quote
N6843N Posted January 10, 2010 Report Posted January 10, 2010 I installed a LASAR ignition system on a Arrow II for a friend of mine several years ago. My impression was favorable overall. If you have one installed find a mechanic that is familiar with them as the timing process is different than that of a standard mag. Falure to follow the instructions for timing can lead to engine falure due to detonation. Norm claimed he saw an increase in power as well as a much smoother running engine, for what he spent I hope he's right. As a side note his was a very early unit and the controller failed in flight at about 10 hours. He landed fine when he noticed it and Unison had a new controller flown to his location and replaced within a couple days. After that he flew the plane for a couple years before selling it with no problems. Quote
Kwixdraw Posted January 10, 2010 Author Report Posted January 10, 2010 Great. Thanks. I understand that the timing is set with a different buzz box that accounts for the ultimate full advance of the spark. I'm kind of suprized that there aren't more of us using them. Quote
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