[Public-list] Chainplate covers?

Don Campbell dk.campbell at sympatico.ca
Mon Dec 13 22:28:59 PST 2004


It depends upon who was working the week your boat was made I guess, because my boat had core at every through-deck fitting, stantion, chainplate, waste, fuel, water or vent. The same went for the cockpit floor.
Don


Michael Connolly wrote:

> Alfredo, Stephen and Don,
> Fortunately, the Alberg 30 is not cored where the chainplates pass thru the deck.  But water penetration does rot out the bulkheads and deck knees. If one were to go to the trouble of making these tubes for the chainplates, would it be advantageous to allow the tube to stand proud of the deck?  Even a 1/2" would prevent most of the rain water from entering.  The tube idea allows for a much greater surface area for the caulk and the chain plate cover may not be needed.  I like the idea of creating a 'curb' for the water to run off and not try to enter the chainplate slot from the deck level.  The 'curb' would protect the slot from perhaps 80% of the water trying to enter.  The caulk would help with the 20% when the rail is under water.  The tube is a nifty idea.
> Don, would also like to see your 'fix' for this problem.
> Michael
>
> Alfredo <alberg30sail497 at yahoo.com> wrote:
> Since we're on the topic, this is how I intend to someday do the
> chainplates on Free Spirit.
>
> http://www.gizmology.com/V40/Upgrades/chainplateFix/index.html
>
> --- "sousa, stephen (ENG)" wrote:
>
> > Don,
> >
> > If you could share the method used for the pattern it would be
> > appreciated.
> > This may be one of those items that would fall into the group
> > purchase area.
> > It would benefit all Alberg owners and could be very inexpensive it
> > we
> > purchase a large quantity. I would expect that all boats have the
> > same
> > installation for chainplates, so one pattern could be used on all
> > boats?
> >
> > Thanks,
> > Stephen
> >
> >
> > -----Original Message-----
> > From: public-list-bounces at alberg30.org
> > [mailto:public-list-bounces at alberg30.org] On Behalf Of Don Campbell
> > Sent: Sunday, December 12, 2004 7:48 PM
> > To: Alberg 30 Public List -- open to all
> > Subject: Re: [Public-list] Chainplate covers?
> >
> > Randy
> > When I bought #528, I was taken to see a C & C deck which had a
> > raised
> > flat area around the chainplates with the SS plates of which you
> > speak. I
> > knew I needed to redo the deck on this boat so incorporated a raised
> > flat
> > area at the chainplates on my new deck. I then went to the scrap yard
> > and
> > found some 1/8th stainless plate that was food grade so probably 316
> > (which
> > is probaly not what is best for a marine environement, 304 is
> > stronger and
> > more durable, I gather, but strength is not that important here),
> > cut it to
> > size- about 1 1/2" x 2 1/2" and then took it to a machine shop to
> > have the
> > slot cut. I needed to file the edges a bit to get the chainplate
> > angle
> > correct in the slot but SS is relatively soft, so not difficult once
> > in a
> > vise. I have drilled 2 holes in the plates and drilled and tapped the
> > epoxy,
> > raised flat areas to match so I just tighten the 2 - 1/4 x 1/2 ss
> > machine
> > bolts to seal the caulking. Total cost about $25 Canadian when I did
> > it 8
> > years ago -$20 of that for the machinist. I need to redo that
> > caulking job
> > this winter. The raised part of the deck decreased the torque and
> > twist on
> > the chainpates at the deck level too. If you want to know how I did
> > the
> > pattern for the raised flat area let me know.
> > Don
> >
> > Randy Katz wrote:
> >
> > > Speaking of chainplates (nice photos of the reinforcement straps,
> > BTW)
> > > has anyone found a source for chainplate covers? They are the oval
> > SS
> > > plates 2-2.5 inches long, slot in the middle, that fit over the
> > > chainplate straps where they stick out of the deck. They get
> > caulked and
> > > sit over the deck opening, with the chain plate strap coming up
> > through
> > > their middle, and serve to help seal that deck opening.
> > > I've checked West Marine and a few other stores-- they seem hard to
> > find
> > > at all but ones the size we need I never did come across.
> > > Anyone know where to get them?
> > >
> > > Many Thanks,
> > > Randy Katz
> > > #249
> > > Seattle, WA.
> > >
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