Torque on Prop Nut

[lncoop]

I read that a prop nut is supposed to be tightened to 50 foot pounds of torque. How important is that? I just replaced mine and snugged it down really well with an 1 1/8 socket. Do I need to get a torque wrench? Do they even make one that will get inside the cavity to reach the prop nut? If no torque wrench how does one determine foot pounds? Is this a tempest in a teapot? I suspect it is, but I want to do it right.

 

[RicMic]

Re: Torque on Prop Nut

I've never heard of anybody using a torque wrench on a prop and I have seen a lot of props installed. Good and snug, is all it takes, especially if you grease the splines!

 

[lncoop]

Re: Torque on Prop Nut

Cool. Thank you sir.

 

[Boss Hawg]

Re: Torque on Prop Nut

I dont worry about torque-
I get mine as snug as possible & still get the cotter pin in

 

[davlafont]

Re: Torque on Prop Nut

If you'd like some peace of mind, get you hands on a torque wrench, set it to 50 ft. lbs. and torque something. You'll be surprised how light that really is. I torque my car's lug nuts to 90 ft. lbs. (factory spec) and THAT's not a lot of effort. Fasteners do not like being overtorqued. The cotter pins, tabbed washers, and/or nylon thread inserts are all the primary means of preventing loosening.