*Idler Gear
Have a Lyc 0-360-A2A (Power Sport) with 2 sets of 3 yr old PMAGs on my 6A. Rt PMag wont keep its timing. When timed and prop is pulled through, the timing (which was TDC) moves 20 deg left (as viewed from the back of the fly wheel) with every full propeller rotation. I pulled the emag to bench test and all seems well there. They mentioned maybe a missing tooth on the idler gear (cant feel anything missing, but going to dig into this more when I get back to the hangar.)
The pmag had been running fine when I pulled it and was sent in for a flashing yellow light error. It would drop 100 rpm compared to the left one but thats it. When I reinstalled it ran terrible, backfired, etc. This was when I noticed that the "green light" that normally is indicated at TDC was off 20 deg per rotation. All wiring and plugs check good (tested, cleaned, re-checked for proper wiring).
If it is an idler gear, does the engine need to be torn down to repair? Thoughts?
Thanks,
Kurt
Have a Lyc 0-360-A2A (Power Sport) with 2 sets of 3 yr old PMAGs on my 6A. Rt PMag wont keep its timing. When timed and prop is pulled through, the timing (which was TDC) moves 20 deg left (as viewed from the back of the fly wheel) with every full propeller rotation. I pulled the emag to bench test and all seems well there. They mentioned maybe a missing tooth on the idler gear (cant feel anything missing, but going to dig into this more when I get back to the hangar.)
The pmag had been running fine when I pulled it and was sent in for a flashing yellow light error. It would drop 100 rpm compared to the left one but thats it. When I reinstalled it ran terrible, backfired, etc. This was when I noticed that the "green light" that normally is indicated at TDC was off 20 deg per rotation. All wiring and plugs check good (tested, cleaned, re-checked for proper wiring).
If it is an idler gear, does the engine need to be torn down to repair? Thoughts?
Thanks,
Kurt