Quote:
Originally Posted by Squanderbucks
All the things said above are correct except no one mentioned that you need to look for the WHY.
I could be just improper tightening of the set screws but could be other stuff such as excess vibration Causing the loosening. Anything from bent prop, bent shaft, barnacles on either as well.
As long as you have things apart now is a good time to check shaft/transmission alignment before tightening back up.
Depending on how tight your coupler is - putting it fully back into place can be a problem. Usually assisted by tapping or pushing on the prop end of the shaft.
Be sure to check the shaft key for being bent or rounded over.
This coming out on it's own should be considered the "canary in the mine shaft".
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This is a good point. And, it's probably going to be easier to take the coupling off the
transmission, get it onto the shaft, then slide the shaft forward to mate the coupler to the tranny. That's when you do your alignment with feeler gauges.
That's a solid coupler which is a good thing, as is the keyway. It can only go on the shaft one way and the divots for the set screws should be in place.
If the coupler is tight on the shaft (and it should be) you can get it good and hot with a torch which will help you get it back on. Wear welding gloves.
As for putting a hose clamp on the shaft to keep it from exiting through the log, another option is to put a zinc there, or even buy a SS machined collar.