Magneto 500hr

[kennyw]

Just got the call from Aircraft Magneto Service today. 4SP's magneto 500hr IRAN is complete and the magneto is getting shipped back to me as of today. I spoke with the gentleman who apparently did the work. He told me that with the installation on the VWs, its necessary to periodically lubricate the fly-weights on the impulse coupling, because they aren't mounted "inside the engine" like on regular aircraft engines.

I understand that that the accessory drive on the VW conversions are not lubricated. But, I never thought of specifically lub'ing the magneto fly weights. Its such a pain to get to, it makes me wonder what others are doing.

Is anyone periodically lubricating their magneto fly-weights? If so, how often, what lube are you using and how are you doing it?

 

[Mytonic]

Good questions for the gentleman who told you to lube them. I just had my mag off for annual, inspected mag and couplers for wear, reinstalled and retimed, no lub'ing. Please keep us posted.

 

[kennyw]

Good questions for the gentleman who told you to lube them...

I got the distinct impression that he was not a VW aero-conversion kind of guy.

 

[soneraifred]

In my 34+ years of flying behind VW engines, I’ve never lubricated the impulse coupling on any of my engines. That’s not to say that it isn’t a good idea. When I was getting ready to run the O-290G on my Wag-a-Bond for the first time, I had the LH mag (with the impulse coupling) hang up when I was pulling it thru. I took it to an A&P friend of mine who was very knowledgeable about mags, and all he did was remove the impulse coupling, lube it up, and put it back on. It hasn’t missed a lock since.