Y33 chainplates?

Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
I'm pulling the chainplates on my Y33 tall rig for inspection in a few weeks. Has anyone replaced theirs? Does anyone have dimensions or templates?

Thanks,

Mike
 
Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
I pulled the chainplates and they failed inspection due to corrosion where they passed through the deck. I had new ones fabricated. Still have the old ones if anyone needs dimensions.
 
Oct 22, 2014
20,989
CAL 35 Cruiser #21 moored EVERETT WA
Mike. Such Corrosion is not unusual on oder boats. It would be great if you could share some pictures of your chainplates. Might help other sailors with this issue.
IMG_0128.JPG
Here is what one of mine looked like. I polished the pit out and then pacified the metal before reinstall.
I used Butyl on the reinstall. No leaks.
 
Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
Mine looked worse, but it was still a toss of the coin as to whether to replace them. It should have been simple but they turned into a PITA to replace. I might have kept them a while longer if I'd known. I'll take some pictures this evening and post them.
 
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Oct 22, 2014
20,989
CAL 35 Cruiser #21 moored EVERETT WA
Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
Chainplates: I was told that the corrosion can work its way inside the steel.

2019-10-30 20.32.28.jpg


There was also some minor deformation of the holes. And more corrosion.
2019-10-30 20.34.07.jpg
 
Oct 22, 2014
20,989
CAL 35 Cruiser #21 moored EVERETT WA
Good image of pit corrosion. When it looks like that it might be a surface blemish or it could be rotten inside like a termite had hollowed out the interior of the steel.
 
Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
Exactly how it was explained to me. I was already in deep so I continued digging and replaced them.
 
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Oct 22, 2014
20,989
CAL 35 Cruiser #21 moored EVERETT WA
Smart move. Not with titanium I hope. That would break my cruising kitty.
 
Nov 21, 2012
587
Yamaha 33 Port Ludlow, WA
The re-rig project was a bit of madne$$. I'm still digging out. Titanium chainplates would be completely over the top for this, or any boat I will ever own.
 
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