What is the torque for the large nut that goes on the shaft?

1. What is the torque on a prop nut?
2. How do you tighten a prop nut?
3. How tight should the prop nut be?
4. What do you torque a boat prop to?
5. How tight should a Yamaha prop nut be?
6. Are propeller nuts reverse threaded?
7. What size is a mercury prop nut?
8. What size is a Yamaha prop nut?
9. What does a thrust washer do on a outboard motor?

What is the torque on a prop nut?

The owner's manual calls for 39.8 ft. lbs.. Tighten past that as necessary to align the cotter pin with the grove on the nut and the hole in the shaft.

How do you tighten a prop nut?

"Install the small, half-height jam nut first—against the hub. Tighten it up as hard as you comfortably can by hand with a standard wrench. Then, screw on the full-size nut and tighten that down independently—again, as hard as you comfortably can, by hand with a standard-size wrench.” That's it.

How tight should the prop nut be?

Proper installation begins by installing the half nut first and tightening it just snug enough to “preload” the half nut onto the shaft against the prop hub. Tight but not with all your weight on it.

What do you torque a boat prop to?

Once the nut is hand tightened, you may now use a torque wrench to reach the specification of 55 foot-pounds of torque. If you don't have a torque wrench, no need to worry, simply tighten down the nut with your socket. It will need to be pretty snug to avoid coming off when running your outboard.

How tight should a Yamaha prop nut be?

Finger tight is NOT good enough. Best to torque to spec (it's in your owners manual) as a minumum. If problem lining up,TIGHTEN, to the next, Do not loosen. However,,that can sometimes be difficult.

Are propeller nuts reverse threaded?

By using threads that are the opposite to motor spin direction, the prop nuts automatically lock themselves down and won't come loose. ... In hardware stores, they are refereed to as right handed and left handed thread as opposed to CW and CCW.

What size is a mercury prop nut?

Compatible with any outboard or outdrive that uses a 1 1/16" prop nut. Corrosion free for easy storage without staining lockers or cubbies. Don't make an unexpected event worse by not having or losing the right tool, pick up a Mercury Marine floating prop nut wrench.

What size is a Yamaha prop nut?

It is an 1-1/16" socket.

What does a thrust washer do on a outboard motor?

The propeller shaft on most inboard and outboard boats uses at least one thrust washer to transmit the axial thrust of a spinning propeller into forward or backward motion.