Transmission coupler removal help

[joeyleggz]

Changing

the dripless shaft seal on my boat was able to take apart the coupler and back it off only to find some big weird type of nut behind the Coupler does anyone have any experience with removing this what kind of nut is that ,and what do I need to do this ?my boat is a 97 express cruiser with a velvet drive transmission and 1/12 shafts


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[joeyleggz]

Bump


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[fwebster]

Looks like you are going to need a thin wall socket that will for the nut, From there, just scotch the prop against the hull and back it off. Measure the inside of the coupler to get the OD for the socket and across the flats on the nut for the socket size......a good parts house should have a selection of high tensile strength sockets.

 

[joeyleggz]

Thanks Frank did a little research last night that is a locking nylon nut there's hardly any room to slip a socket over that when they build these things I have to scratch my head sometimes


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[joeyleggz]

Spoke to the company who provides Sea ray with the assembly of the shaft and Cupler turns out they made a custom tool to install this nut on to the Cupler it's a 1 3/4 inch custom nut with a custom socket tool that they did away with when I guess they got a lot of flak from the dealers and mechanics so here I am in a unique position of having a custom make a tool change my dripless shaft seals absolutely ridiculous


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[Bt Doctur]

use a impact socket /thin wall socket and try grinding/cutting the socket to fit 2 flats
using a disc wheel , split the coupler , then remove the nut
cut and replace the coupler and shaft

 

[Berettadog]

I now have the same scenario with the starboard side. Need to get the shaft out.
How did you get this resolved??
Thank you in advance

 

[Espos4]

You may not get a response from an older thread, an option is to make your own socket.

You’ll need access to a welder.

Some metal stock from Home Depot, a short length of exhaust pipe, and a 3/4” or larger nut are all that’s needed.

1/2” wide flat stock, maybe 12-18” long and 1/16” or 3/32” thick.

Make 3 “boomerang” shaped pieces with the flat stock, weld them into a hexagon onto the end of the exhaust pipe. Weld strips of flat stock and a nut onto the other end of the pipe and your done.

I did the same when I made a socket for the large prop nut for my Bravo 3.
I’d post a picture of it but cannot find it at the moment.