[Rhodes22-list] Chainplate access

[The Rhodes 22 Email List]

Rick:

I was in Mexico for a week and out of touch.
I think what you are doing is perfectly fine. I had misunderstood one of
your earlier messages. 

Similarly, my message was unclear if it led anyone to think that I was
proposing that the stainless steel chain plate be bonded with epoxy. Epoxy
does not stick well to metals in most circumstances and stainless steel
begins to degrade in an oxygen free environment.

The separation of the core material from the deck and liner occurred on my
boat as well I used thickened epoxy in that case to try to fill the gaps as
best I could. That certainly stiffened the deck.

Graham

Graham Stewart
Agile. R22, 1976
Kingston Ontario Canada



-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 Email
List
Sent: January 8, 2016 3:00 PM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] Chainplate access

Graham,

How to remove a section of core is one reason I'm leaving it to the pros.
If I happen to see them doing it, I'll let you know.

Another factor that swayed me to the core removal option is that in the area
around the hatch opening, the liner had been glued to the core.  I say "had
been" because now, even though there is no core rot, the liner has dropped
away all along the edge of the hatch opening next to the chainplate.  This
gives a more access to saw and chisel out some core.
After the plate is back in place with the restored core, they will re-attach
the liner to the core as that adds strength and helps prevent water
penetration around the hatch frame.

The guys in the shop enjoy working on my boat because they say the R22 is a
study in how to design and build a boat that can absorb unusually severe
stress without losing all structural integrity.  Just like the right angle
bend idea for the chainplate allowed it to partially fail (perhaps the the
shock absorbing effect of the liner separating from the core was also part
of that) yet continue to function under normal conditions for another 15
years.

One thing these guys try to do is preserve the original structure and
materials in making repairs for me.  I've talked about that on this list
with respect to the mast step and hull-deck joint.  Now they are doing the
same with the chainplate repair.

Aside from the OSHA aromatics issues of using epoxy in a commercial shop,
epoxy holding onto the chainplate would make it more likely for the metal to
fail under extreme stress.  If that happened during the incident I think
caused the problem, my mast would have fallen.

Rick

On Thu, Jan 7, 2016 at 5:30 PM, The Rhodes 22 Email List <
rhodes22-list at rhodes22.org> wrote:

> Rick:
> Ok. We agree. I misunderstood your earlier message. How do you remove 
> the core without cutting out a section of the liner? There is 
> something here that I don't understand.
>  Graham
>
>
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