I have a Magnaflite MZ6222 lightweight starter on my 0-320. I have noticed that the bendix does not like to engage sometimes when the engine is hot. Usually it likes to act up when it is windy and I am being blown backwards towards a turbine Otter or Beaver.
The more witnesses the more likely it is to make that spinning sound and not engage.
I blow it out every few days and spray the heck out of the bendix assembly with silicone spray. That seems to help for awhile.
So are the Sky-Tec ( or is it Air Tec) lightweight starters any better ???? Or should I just buy a rebuilt or new MagnaFlite ???