Edward Klepeis wrote:

Dear Paul Conner
   You might want to reconsider using alum  for a alt. bracket because 
of the fatigue strength under vibration. You can use 4130
steel it will be much stronger and maybe oz. heavyer . Give it some thought.
                                                                Regards
                                                                 Ed
                                                              Tech welding

I totally agree Ed.
The Lycoming engines certainly are death on alternator mounts for some strange
reason.

Paul Lamar

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