ORIGINAL: jerrysu29
Wood Screws? you guys most be Carpenters. Real Mechanics use Allen headed bolts. I threw away my screw drivers 20 years ago, an Engine mounted as in the enclosed picture will stay tighter longer and require less maintenance I hope this will give you guys some insight on how to properly mount an engine. The fisrt thing I do before starting any build is to throw away all wood screws and machine bolts in the kit that requires the use of a screw driver and replace them with Allen Head bolts or screws. I do not like things coming loose. I have checked many planes for people complaining about their engines coming loose and find that every one of them had been mounted with the use of Philips headed sheet metal screws, so take it for what it is worth
jerrysu29 Call Sign Wild Man
i agree....i consider using sheet metal or woord screws to be the most inferior way of mounting a motors regardless of size.......4-40 and a nice nylon lock nut is the way to go on 40 size...6-32 on 60-120, and 10-32 on small gassers, aqnd 1/4 20 for large gassers....its not a rule bit its is the safe way to go