Alternators

[cmsheaff]

In four years, I have gone through two rear engines alternator drive coupling shafts, two front alternators, and now a front alternator drive coupling shaft. This leads me to believe that the alternators need a more robust system (stronger shaft, bigger load capacity). Does anyone know of an STC for a standby alternator or a bigger replacement alternator? Anyone else have trouble with repeated alternator failures?

[hharney]

Have you searched the message board for alternator issues? The late great Pete Summers should have some posts about this. I can't remember what issue you might have but I don't think it would require a modification. Something else is wrong for you to continue to have this problem.

[cmsheaff]

Ihave searched the message board and read all the old Skymaster newsletters. I have only found two previous owners with a similar complaint. But no answer.

[hharney]

Did you see this thread, look at the last post

http://www.337skymaster.com/messages/showthread.php?t=1529&highlight=Alternator+drive

Here's another

http://www.337skymaster.com/messages/showthread.php?t=230&highlight=Alternator+drive

[DABULLY82]

I was looking for an upgrade alternator, I found the hartzel alternator p/n ES-4006, or continental 634442, it's a 60 amp 28 volt gear drive, and isles applicable to IO360 engines,but i couldn't find an stc or something else.