Torque specs for prop nut

[Sinsemilla]

Just went over the motors yesterday and found that one of the prop nuts wasn't very tight. Motors are Honda BF150s.

What torque do you fellas usually do the nut up to? I've read around the 50ft lb, but i've also read just "snug"

Cheers, Anth

[Duffman]

The prop is held in place by splines and the nut is there to stop the prop sliding off. It doesn't have to be that tight. There should be a split pin to stop the nut loosening. Imo just nipped up firm. You can always ring your local boat mechanic for advice.

[Stumpjumper]

Just a smidge tighter than hand tight is what I've always used....sometimes a tad more, sometimes less in order to line up the split pin hole.

[smile0784]

My pa use to do it up my hand as tight as he could and then use a shifter to align the splice holes

[repspec]

varies from manufacturer

get a block of wood, jam it against the prop and cavitation plate and tighten until the split pins or tabs line up.

[skronkman]

There is certainly a spec or instructions for your motor that override what I'm about to say but here's what I do. Tighten the nut until it just takes out the axial movement in the prop shaft, then back it off to the nearest position that you can get a STAINLESS STEEL cotter pin through the castle nut (or whatever nut locking mechanism you have).

[Sinsemilla]

Thanks for the replys gents