Spun Prop

[macojoe]

I had a Yamaha that the trim cylinder cap always came lose and same thing, I tigntened a few times same crap, so I took a hammer and punch and after I tightened it the last time, I put the punch on the spaner wrench hole and used a hammer to bang it tighty, Done never had it off again

[smokeonthewater]

What about a little locktight?

[phatdaddy]

down here we use a little dab of fingernail polish instead of locktight.

[Blue_Runner]

In looking around on the interweb it seems the opposite is the norm - the caps freeze up and nearly impossible to remove.