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**J. Clarke[_5_]** · June 11th 16, 10:40 AM posted to rec.autos.makers.jeep+willys

In article s.com>,
says...
>
> i am having problems with an old koenig 100. the bolt securing the drive shaft
> to the winch came off and the small shim which pits into the winch input shaft
> was lost (Alan bolt). I made a new shim out of old spring and it fits
> perfectly, however the 3/8 inset hex head bolt is not providing enough
> pressure and the winch still fails under a heavy load. I tried drilling a bit
> into that shim and also ground the bolt to fit into the depression and got a
> fair pull before the winch again failed. the rotation is starting to score the
> input shaft.
>
> I appreciate any ideas....any one ever just drill through the input shaft so
> the securing bolt fully penetrates the drive shaft.? I am amazed with the
> strength of the winch when operating normally and it is crazy that there is
> only a pressure hold and not a bolt all the way through the shaft....thanks
> for any ideas....

I believe that that part is a key, not a shim, and there should be a
matching groove on the mating part.