Mercury Mark 6 Drive Shaft Repair?

[Buccaneer]

While working on the Mercury Mark 6 water pump, I noticed
my temporary repair on the drive shaft "seal area" with JB Weld,
was much more temporary that I would have guessed. Since the
repair, it has a total of about three minutes running time,
and the JB Weld was already wore out of the original grooves
in the seal area.
I was trying to think of an economical repair that I could do myself.
Looked up speedi-sleeve, and redi-sleeve, and the smallest
size they show is .469 and .500 respectively.
The drive shaft diameter at the seal area is .454 thousands.

I have a link to a photo of my spare drive shaft, which looked
worse that the one I used. There’s two sealing areas on the
drive shaft. One just above the clutch spring, and one
above the water pump area (where the drive pin hole is).
Any ideas welcomed, Thanks, Buccaneer
http://grayhitandmiss.com/Outboards/mk6driveshaft.jpg

Prepare to be boarded!

[dave-bernard]

call me 1 914 310 7086

[westwind]

Although I haven’t tried it myself, I’ve heard that brazing the shaft and then polishing it down to smooth it out, works fairly well.

[Buccaneer]

Dave, I sent you a PM.

Westwind, brazing is something I could do. Suppose the
grooved area would have to be V’eed out and cleaned up
a little. Could chuck it in the lathe, cut down the braze
close, then emory cloth it smooth.
Not sure what the heat from the brazing would do to the strength
or temporing of the shaft though?
Thanks,

Prepare to be boarded!

[Author]

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