What would cause a woodruff key to shear. I have replaced it twice, should I put loctite on it?

 

something would have to be loose or missing a certain bearing to do that, this is the key that sits in the crank then the flywheel/stator slides over it? if so there should be a cage bearing that slides onto the crank and it sits inside the flywheel/stator when u install it, if that bearing is gone that would prolly cause the key to break.
also one little trick is to try and make a little nick on the key so it has to be forced into place if you know what i mean that way it doesnt just sit in there loose, once i put a little nick into the side of it i use a hammer and gently tap the key in place.

 

bearing cage is there, I have surfed other forums and some mention to loc-tite the fly wheel to the shaft. What do you think 357?

 

i dont think ive ever heard of that, never hurts to try id give it a shot, after i make a little nick in the key and tap the key in place with a hammer its it there pretty snug and ive never had any problems afterwards.

 

well its in and setting up right now, should know tomorrow.