[Rhodes22-list] How to replace forward lower chainplates?

Fri Aug 2 17:02:58 EDT 2024

Roger, how did you remove the old chainplate?  Did you just cut it off?

Michael McKay (mm.bizlist1 at gmail.com)

On Fri, Aug 2, 2024 at 5:00 PM ROGER PIHLAJA <roger_pihlaja at msn.com> wrote:

> Mike,
>
> If you do it my way; then, you only have to drill the hole for the Beckson
> inspection port in the inner cabin wall.  No holes in the cabin ceiling!
>  From the hole in the cabin wall, you will be able to remove the old chain
> plate.  The new chain plate will just be a straight piece of SS bar stock
> and will use the same hole thru the cabin roof as the OEM chainplate.  The
> new chainplate will be thru bolted thru the outer cabin side wall.
>
> Roger Pihlaja
> S/V Dynamic Equilibrium
> 1978. Sanford, MI
> Sent from my iPhone
>
> > On Aug 2, 2024, at 4:46 PM, mm.bizlist1 at gmail.com wrote:
> >
> > Roger and Todd,
> >
> > Before I start cutting holes in my boat, I want to make sure I understand
> > the full process, so please let me know if I am misunderstanding
> anything.
> >
> > The original chainplate is bent in an L-shape and screwed to plywood
> inside
> > the ceiling of the cabin with one or two wood screws.  To remove the old
> > chainplate, you need to open a hole in the ceiling liner.  In Todd's
> case,
> > he also needed to open some of adjacent sidewall of the cabin to gain
> > sufficient clearance to extract the old chainplate.  Roger, did you need
> to
> > do that also, or did you use a different approach?
> >
> > In any event, the hole in the ceiling needs to be repaired afterwards.
> Was
> > there much difficulty in achieving a clean repair of the ceiling liner?
> >
> > A second hole of the correct size for the deckplate inspection port is
> > drilled in the inside sidewall liner below the chainplate opening.  A
> > backing plate (1/4" plywood?) is epoxied inside of the outer layer of the
> > cabin sidewall.  The new chainplate is through-bolted to the backing
> plate.
> > Finally, the deckplate is installed to the inside liner of the cabin as
> an
> > inspection port.
> >
> > Is the above description correct?
> >
> > Thanks,
> >
> > Mike
> >
> > -----Original Message-----
> > From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of
> ROGER
> > PIHLAJA
> > Sent: Friday, August 2, 2024 12:59 PM
> > To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org>
> > Subject: Re: [Rhodes22-list] How to replace forward lower chainplates?
> >
> > You use something like a hole saw to make a 4-1/2" ID hole in the cabin
> > liner.  This will expose the plywood core and the old chainplate.  Remove
> > the old chainplate and any plywood that's in the way, install a new
> > chainplate made of straight SS bar stock, (Note that this new chainplate
> > goes thru the original hole in the cabin roof)  and thru bolt it thru the
> > outer cabin wall.  Then, install the Beckson inspection plate.  Easy
> peasy,
> > it takes about 30 minutes to do each chainplate.  You can easily do all 4
> > inner chainplates in an afternoon.  Other than two round head machine
> screws
> > + fender washers on the side of the cabin at each chain plate and 4
> Beckson
> > inspection plates in the cabin, the  installation will look stock.  But,
> you
> > will be able to inspect/repair/replace the 4 inner chainplates whenever
> you
> > want.
> >
> > Roger Pihlaja
> > S/V Dynamic Equilibrium
> > 1978  Sanford, MI
> >
> > Roger Pihlaja
> >
> > ________________________________
> > From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of
> > mm.bizlist1 at gmail.com <mm.bizlist1 at gmail.com>
> > Sent: Friday, August 2, 2024 12:40 PM
> > To: 'The Rhodes 22 Email List' <rhodes22-list at rhodes22.org>
> > Subject: Re: [Rhodes22-list] How to replace forward lower chainplates?
> >
> > Roger, how did you remove the existing chainplates?  Did you have to
> open up
> > the cabin liner?
> >
> > -----Original Message-----
> > From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> On Behalf Of
> ROGER
> > PIHLAJA
> > Sent: Tuesday, July 30, 2024 11:47 AM
> > To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> > Subject: Re: [Rhodes22-list] How to replace forward lower chainplates?
> >
> > Hi All,
> >
> > One of the first things I replaced when I bought my boat back in 1987
> were
> > the four lower chainplates.  There is no way to inspect the factory OEM
> > lower chainplates.  Sooner or later, water is going to infiltrate into
> the
> > plywood core, causing it to rot.  This is easily fixed by installing 4
> > Beckson 4-1/2" white screw-out deck plates (Beckson P/N: DP40-W, Defender
> > Marine C/N: 941619, $17.36 each + S&H) thru the cabin liner.  With these
> > inspection plates installed, you can thru bolt the lower chainplates thru
> > the outer cabin wall and easily inspect them whenever you wish.  I do not
> > trust wood screws into the plywood core for this heavily loaded
> component,
> > especially not when the fix is so easy.  Just bite the bullet and do this
> > upgrade.  You'll never have to worry about it again.
> >
> > Roger Pihlaja
> > S/V Dynamic Equilibrium
> > 1978  Sanford, MI
> > ________________________________
> > From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of
> Graham
> > Stewart <gstewart.gm at gmail.com>
> > Sent: Tuesday, July 30, 2024 10:16 AM
> > To: The Rhodes 22 Email List <rhodes22-list at rhodes22.org>
> > Subject: Re: [Rhodes22-list] How to replace forward lower chainplates?
> >
> > The chain plate is a bent stainless-steel tang. Mine was held in place
> with
> > a single screw into the plywood core of the cabin top. I have attached a
> > picture of the chainplate. Knowing the width, you should be able to
> > calculate pretty accurately where the screw would be. Removing a section
> of
> > the liner should allow you to remove the screw without needing to create
> a
> > large hole.
> >
> >
> > Graham Stewart
> > Rhodes 22
> > Agile, 1976
> > ________________________________
> > From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of
> > Michael McKay <mm.bizlist1 at gmail.com>
> > Sent: Sunday, July 28, 2024 4:59 PM
> > To: rhodes22-list at rhodes22.org <rhodes22-list at rhodes22.org>
> > Subject: [Rhodes22-list] How to replace forward lower chainplates?
> >
> > Hi Rhodies,
> >
> > I damaged one of my forward lower chainplates and need to replace it.
> >
> > It  is evidently attached to something between the inner and outer
> > fiberglass skins, so my plan would be to cut an access hole from the
> inside.
> >
> > Can you provide any guidance about how best to approach this project?
> >
> > Thank you!
> >
> > Mike McKay
> > S/V Liber 2006/2108
> > Allatoona Lake, GA
> >
> >
> >
> >
> > Michael McKay
> > (630) 209-2054 (m)
> >
> > Sent from my iPhone
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> > URL:
> > <http://rhodes22.or/
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