Embedded Chain plate maint/replacement - Page 7 - SailNet Community

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  #61  
Old 10-20-2013
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Re: Embedded Chain plate maint/replacement

I didnt get out more than a dozen times as I started new projects on the boat. The electric windlass is 90 % done with one anchor on 200 feet of chain and another on rope. Anchor locker was built, washdown pump installed and chain counter is yet to be mounted at the helm. Vacum flush toilet was installed. Now I need to address annoying leaks throughout the cabin and seal the mast, reseal 2 hatches, address the through hulls. No lessons yet.
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  #62  
Old 10-20-2013
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Re: Embedded Chain plate maint/replacement

Your done list is my 'do' list. I've got to get over there and eyeball it.
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  #63  
Old 10-20-2013
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Re: Embedded Chain plate maint/replacement

Quote:
Originally Posted by chucklesR View Post
I've been dinghy deprived all season (muskrats ate mine)
Sounds like a Frank Zappa album - "Muskrats Ate My Dinghy" - could have been the follow-up to "Weasels Ripped My Flesh".

OR, it could be a good name for a radical race boat - a sister to the Seattle boat "Aliens Ate My Buick"
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  #64  
Old 10-21-2013
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Re: Embedded Chain plate maint/replacement

I took a few photos of my Pearson chainplate knees today:

Exposed and hidden part. Settee backrest normally covers the portion below the shelf:


Front of the knee:


Backside with backing plate:


I think the ones that I posted earlier from Maine Sail would be easier to retrofit.
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  #65  
Old 10-21-2013
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Re: Embedded Chain plate maint/replacement

Thanks Alex,

That's all custom right?
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  #66  
Old 10-21-2013
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Re: Embedded Chain plate maint/replacement

No, that is the stock configuration on my Pearson 28-2. I think the photo that I posted last week was from Maine Sail's CS36?
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Re: Embedded Chain plate maint/replacement

The only Pearson I've seen the guts on is a 365 - it's not near as neatly done.
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Re: Embedded Chain plate maint/replacement

Yeah, I looked at a Pearson 32 before buying this one. On the Pearson 32 the chain plates weren't even inspectable!

I think most or all of the -2 Pearsons (28-2, 31-2, 33-2, etc) have chainplates installed this way. They were made in the mid to late 80s, just before the company went out of business.
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Old 10-21-2013
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Re: Embedded Chain plate maint/replacement

Quote:
Originally Posted by chucklesR View Post
I promised in this thread to start a new thread on the steps going forward.
Chain plate or impact.
This is my attempt at doing so.

Last night I pulled the joinery off and took a look at what I'd be needing to do to replace the chain plates.
Just a reminder - 1987 Irwin 38 CC MkII, chain plates embedded in the fiberglass, the tab with the pin hole (for the shroud) goes through a 2 inch thick toe/cap rail.
Here's the overall view:


The issue that spring boarded this:


That area from the outside on a FLIR image

That area from the inside on a FLIR

That area eyeball view, obvious long term water leak (previous owner).


Okay, here's the big one. That area - no wood or joinery over it. Raw hull.


What you are seeing is two of the three chain plates (the forward one is on the other side of the bulkhead). The chain plates have two horizontal 'tabs' - like an inverted orthodox cross. I do not know how they are joined, no bolts are obvious so I assume a weld.
The obvious dirt is from long standing wet/rot over the years. I had no leaks at all until I removed the jelly fish/snot over the chain plate covers while doing the teak rails. It is all obviously years old.
Between the two horizontal tabs of the plates are some obviously well caulked screw pointy ends - they are what is holding the 2 inch thick, 3 inch wide rub rail on.

There is a heavy glass strip at the bottom of the plates, this folds horizontal over where the coring obviously starts (as well as the gel coat).
At the top there is a gel coat cover strip, up under that looks like this.


Those screws are bunged toe rail/cap rail, stanchion bases etc, going through the bases, teak, and folded 'shoebox' lips of the deck/hull.

Here's the underside showing a plate -



That's enough for now.
WOW!!!! I will follow this with interest. Good luck making this work.

Brian
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  #70  
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Re: Embedded Chain plate maint/replacement

Brian,

Been busy reading the OT?

Everyone else:

Notice the black bits under the heavy fiberglass tape section:


That marks both the beginning of the gelcoat, the beginning of the cored section- and I seriously think the beginning of the rot area- I'll be digging and such and keep ya'll informed.

My surveyor with the thermal camera (I do not yet have permission to name him) sent me photo's of the job his dad/partner is doing on a Irwin 43. They show clear and present danger (i.e. cracks) on the stainless bars that to date on mine have shown clean and no problems.
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