[C320-list] Chainplate adjustment

[Dan Winsor]

Thank you both for good answers. I did close to the same in that i max hand
tightened all tie rod nutz while boat was on the stands in the yard so I am
lightest and loading the deck the most. Sounds like Dave is a little
heavier and Mark is loading the "shelf" the most. You can bet I'll be
bending someones ear at the rendezvous this summer. Ill post anything I
find out.


On Fri, Jun 2, 2023 at 2:43 PM Dave Hupe via C320-list <
c320-list at lists.catalina320.com> wrote:

> Somewhat similar to Mark's explanation, I grabbed a tie-rod inside the
> cabin shortly after we bought our boat and it rattled. I knew logically
> that this shouldn't be that way. So, I managed to reach up into the open
> cubbies behind the settee cushions to the nut on the bottom of the rod and
> tighten the nut enough just to stop the rattle and achieve some down
> pressure on the chainplate.  I don't  remember specifically the tools I
> used, but the working room is tight and not directly visible.
> Dave Hupe
> 1994 C320 #32
> Sent from Yahoo Mail on Android
>
>   On Fri, Jun 2, 2023 at 2:03 PM, Mark Seyler via C320-list<
> c320-list at lists.catalina320.com> wrote:   I can't claim any special
> expertise about this, but I replaced my chainplates last summer, and the
> rig is still standing.  I tightened the nuts at the bottom of the tie-rod
> enough to put some downward load on the chainplates even before the shrouds
> were attached.  The shelf where the tie-rods attach behind the settees is a
> major structural component, and it looked to me as though it was meant to
> carry more of the load than the side deck.  I didn't try to get it
> super-tight, just to take any flex or stretch out of the below-decks part
> of the system, so the side-deck wouldn't be pulled up (and away from the
> hull) by the tension on the shrouds.  I had to use a crows-foot wrench to
> tighten some of the nuts, because of the location of the openings in the
> back of the settee.
>
> Mark Seyler
> S/V Reality,
> Catalina 320, #232
> New Orleans, LA
>
>
>
> -----Original Message-----
> From: C320-list <c320-list-bounces at lists.catalina320.com> On Behalf Of
> Dan Winsor via C320-list
> Sent: Friday, June 2, 2023 12:32 PM
> To: c320-list at lists.catalina320.com
> Cc: Dan Winsor <dandwinsor at gmail.com>
> Subject: [C320-list] Chainplate adjustment
>
> The chainplate extension rods that are visible in the saloon have washers
> and nuts on them to increase the strength by pulling from the deck and the
> interior structure. Is there any procedure or guidance on tightening the
> nuts? Obviously what is loose when in the yard with rig down is tight when
> floating with rig tensioned. I would guess that the ideal would be to share
> the load equally between deck and cabin but how is that accomplished? 🤔
> Dan Winsor
> Lucky Devil #109
> Mattapoisett, MA
>
>
>