Cub Cadet 127 drive shaft
 

ok so last winter i had to replace the dowel pin in the drive shaft on the motor side it was so tight in there i had to heat it up to drive it out and sence then the new pin has been loose i had a hose clamp around the coupler on the motor to hold it in and today the pin put a hole in the hose clamp and the pin fell out is there some way to tighten to hole or do i need to look for a different shaft

Are you referring to the 1/4x1 1/2 inch dowel?
Is the shaft wallowed out is why it's loose?
I've not run into this problem, but only thing I can think of would be to weld the hole up and re-drill it.

yes that is the pin i am referring too and yes i think it is just slightly wallowed out

You could try "knarling" the pin, which means taking a center punch around the middle of the dowel pin and hitting it in several places around the diameter. This may distort the surface of the pin enough to give it a tighter fit inside the hole. If you do this you may also use some form of Loctite on the pin too. Just a thought, good luck!

Personally I would take the weld and rebore the hole route. The hole being wallowed out is most likely the reason for the loose pin and trying to expand the pin may be a real pain that only might work and may allow further wallowing out.

I agree, Paul.

If this was my problem, I would have the hole welded if the person doing the welding was very good. I am not a good welder.

I would have a new drive shaft made from 4140 grade steel shaft, have the machine shop drill the holes to original specification and re-install the shaft. Problem solved.

Thomas send "Jeff in pa" a PM he makes drive shafts

This is what I would do. Place the dowel pin where is should be and either braze or silver solder it into place. :ThumbsUp: