Mercury 1150 Outboard (Prop Shaft Retainer Nut) How Do I Get It Off

[ranger115blue]

How many foot pounds of torque does it take to remove a prop shaft retainer nut from a 115HP Mercury lower unit? I remove the square pin but I broke a 1/2" drive ratchet trying to get it to break lose. but I still didnt get it loose!

 

[alcan]

Re: Mercury 1150 Outboard (Prop Shaft Retainer Nut) How Do I Get It Off

Hi Ranger <br />Is there a tab washer under the nut? The tab washer locks the nut. You will need to straighten the tabs. <br />It is not a good idea to reuse the tab washer.

 

[12Footer]

Re: Mercury 1150 Outboard (Prop Shaft Retainer Nut) How Do I Get It Off

Wow! I dunno exact torque specs (can look them up but) If you put a 1/2" drive socket on there and BROKE the puppy, ypou can be sure that nut is siezed big time. Lots of blaster-soaking is in order, and carefull heat, if you got it. I would use a breaker bar only as a last resort, and try imnpacting first. <br />I just removed one last month ,and it was about as tight as a standard lug nut on a wheel,best i can recall.