Crack on cutlass bearing skeg

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robbjd

I'm three days from launch and just found a crack on the cutlass bearing skeg. Crack is only on the port side and approximately 3 inches long. Any suggestions for a quick repair would be appreciated. Is JB weld an option? What is the skeg material?
S/V Mystic
1997, C34 MKII, STD rig, Fin keel
Universal M35-A(C)
Hull #1344
Sarnia, ON, Canada

Noah

The strut is solid cast bronze and cannot be successfully glued. However, that crack may be only faring material. Grind down along the  crack and see when you reach bright metal.
1990 hull #1014, San Diego, CA,  Fin Keel,
Standard Rig

Jim Hardesty

#2
QuoteThe strut is solid cast bronze and cannot be successfully glued. However, that crack may be only faring material. Grind down along the  crack and see when you reach bright metal.

I agree.  It's probably a casting mark.  Clean it up to smooth metal and use some penetrating dye if you can. Maybe you know someone that has the stuff.
FYI
https://grassrootsmotorsports.com/articles/testing-cracks-home-diy-dye-penetrants/

If you don't find a crack after cleaning it up, you could mark or document it and inspect at the end of each season.
I don't think this is an application for JBweld.
Jim
Jim Hardesty
2001 MKII hull #1570 M35BC  "Shamrock"
sailing Lake Erie
from Commodore Perry Yacht Club
Erie, PA

Jim Hardesty

Quote from: Jim Hardesty on May 13, 2025, 06:11:44 PM
QuoteThe strut is solid cast bronze and cannot be successfully glued. However, that crack may be only faring material. Grind down along the  crack and see when you reach bright metal.

I agree.  It's probably a casting mark but I don't really see it in the picture.  Clean it up to smooth metal and use some penetrating dye if you can. Maybe you know someone that has the stuff.
FYI
https://grassrootsmotorsports.com/articles/testing-cracks-home-diy-dye-penetrants/

If you don't find a crack after cleaning it up, you could mark or document it and inspect at the end of each season.
Jim

Jim Hardesty
2001 MKII hull #1570 M35BC  "Shamrock"
sailing Lake Erie
from Commodore Perry Yacht Club
Erie, PA

robbjd

Thanks guys. It is just a crack in the fairing compound. I found it at the end of the day after dredging our entrance for the past month. My fatigue caused a panic reaction. Splashing Saturday!
S/V Mystic
1997, C34 MKII, STD rig, Fin keel
Universal M35-A(C)
Hull #1344
Sarnia, ON, Canada