Hi Brian,
This pitting is not unusual for stainless steel that has spent time
in a low oxygen environment. The water in there is stagnate, oxygen
depletes, a galvanic cell develops and viola. The process is the
pits, so to speak.
The remedy is pretty much as you did, clean up the shaft best
I guess it was inevitable that people would use this list to send around photos
of their shaft . . . . .
Brian — unless the pits are deep where you think the shaft will bend, I
wouldn’t worry about this just yet.
All the best,
Edd
Edd M. Schillay
Starship Enterprise
C 37+ | Sail No:
Just in case that last image did not load here is a link to imager of my
pitted shaft.
http://imgur.com/08IPTvx
SV La Neige
Brian Fry
CNC37/40xl
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I cleaned up the prop shaft. Then took 600 grit sandpaper then 400 grit
sandpaper to it. There is some pitting on the shaft that rides in the
bearing. Attached is a link to my blog that has a pic. Is this an issue? Do
I need to replace the shaft or have these pits filled?
