Originally Posted by russ_dogg
yeah so i got a key , pulled the shaft rolled it on the straitest surface i could find to make sure it was strait.... if it was tweaked my eyeball cant see it. but when i put the shaft and stut back on it comes through the transmision centered but when u look at it from the back of the boat it isnt centerd going up through the boat. my shaft still may have a slight tweak.....
Are you are saying that the shaft doesn't go through the center of the hole in the bottom of the boat (the 'log')?
I think that it is pretty common that the strut doesn't line up in the exact center of the log.
As long as the strut doesn't rub against the side of the log, no problem, I think.
It's a quality control problem. Cleatus may have been a bit hungover that morning when he took the hole saw to your hull.
The important thing is that the strut, transmission, and engine all be in alignment.
You may have to take the shaft to a shop to see if it is bent.
If, after placing the coupling nut on the shaft, the coupling nut & transmission line up, with the coupling nut not left/right, up/down from the transmission, and you can rotate the shaft with no change in this relative alignment ('wobble') than I would say that you are golden!
If it wobbles, get the shaft checked out, it may be bent.
If the shaft is not bent, the strut is.
I wouldn't try to bend the strut to get it to align with it still mounted on the bottom of the boat, though!
If the strut is slightly bent, the easy answer may be to remove it, and shim it with something like stainless steel washers.
I say easy... I might have meant cheap...trying to figure out exactly where to put that one golden shim may drive you nuts!
You need to do a shaft alignment, I am sure there is a thread or 2 on that on WW,
on my MC it is supposed to be within .003"... not much, about the thickness of a sheet of paper.
basically you separate the coupling nut from the transmission a little, and measure with feeler gauges the thickness all around, and if the difference is more than .003, loosen and move the engine/transmission mounts a bit.
You are done when you can rotate the shaft, and the measurement all around is less than the spec.
You may want to replace the cutlass bearings in the strut while you have the shaft out...
I'll leave the brass vs. vesconite wars to another thread!
Hope this helps!
P.S. I am no expert, so someone please chime in if i've got something screwed up!