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Old 21-02-2015, 21:33   #1
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difficulty with chainplate removal - Tayana 37

I am in the process of removing the chainplates on my new-to-me Tayana 37. It is a 1987, hull #500, and I am beginning to suspect that the chainplates have never been removed/rebedded. And I already knew they were original to the boat.

Anyway, today I started in on the project and removed the starboard aft chainplate in about ten minutes. Wow, I thought, removal will be fairly simply. Not so fast, of course. With both the middle and forward starboard chainplates, I was able to get them free of the 5200, but there was not enough play to get them off the bolts that come out of the knees. Pulling as hard as I can, the middle chainplate is within a fraction of an inch of clearing the top-most bolt. With the forward chainplate, I can hardly even move it at all there is so little wiggle room.

Has anyone dealt with this before? The only solution I can come up with is to cut away some of the deck, which not only sounds overly aggressive, but also seems nearly impossible considering I would need to cut away from the outboard side of where the plate passes through the deck, which is not accessible because of the bulwarks. So, that is not really much of a solution.

I already posted to the Tayana owners group earlier today but have received no responses yet. And I went through all the old messages and files on the TOG; nobody has ever mentioned having difficulty getting the plates off the bolts, making me think I am missing something obvious.

Any suggestions would be appreciated.

Thanks,
Jeff
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Old 22-02-2015, 12:10   #2
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Re: difficulty with chainplate removal - Tayana 37

Hi if you check out Youtube there is a clip showing someone doing this repair.
Cheers John
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Old 22-02-2015, 13:50   #3
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Re: difficulty with chainplate removal - Tayana 37

If the mast is still stepped, would pulling with a halyard help?
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Old 22-02-2015, 20:59   #4
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Re: difficulty with chainplate removal - Tayana 37

Here's a link to the youtube video mentioned previously.

You may find something helpful here but do not follow the remedy prescribed in the video. It is outrageous. Make sure you read the comments.
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Old 22-02-2015, 23:20   #5
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Re: difficulty with chainplate removal - Tayana 37

Am I correct in assuming that the Chainplates go thru the deck and the wiggle room your talking about is the notch thru which they protrude?
If so, you could slightly enlarge though notches and get enough room to get the plate passed the bolts. A long drill bit say 5/16 should be able to give you some holes next to each other to remove some of the coring and deck.
The Chainplates should have a cribbing plate on top at the deck joint to keep the chain plate from flexing and breaking open the joint seal at the plate.
If not be sure to add those.
As well you can reinforce the notch with a small hardwood piece to replace the material removed to remove the CP. Hope that helps.



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Old 23-02-2015, 09:43   #6
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Re: difficulty with chainplate removal - Tayana 37

Are the bolts absolutely not removable?
Imho, if it was my boat, I'd MAKE them removable for next time.
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Old 26-02-2015, 19:51   #7
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Re: difficulty with chainplate removal - Tayana 37

Quote:
Originally Posted by senormechanico View Post
Are the bolts absolutely not removable?
Imho, if it was my boat, I'd MAKE them removable for next time.

They're imbedded into the structure, like tons of Taiwan boats do.
A pain, but not impossible.


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Old 04-03-2015, 10:11   #8
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Re: difficulty with chainplate removal - Tayana 37

Thanks folks. I ended up getting them all out. Had to cut the top bolt back some on three of them. We'll be moving to external ones, which will allow us to check the bolts and chainplates easier.

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