[C320-list] Chain Plate Rebeding

[chuters]

Matt,
I performed this task just in the last six years on our hull #441. 
1) Started on the port and starboard forward lowers.  Followed by mids, then aft lowers.2) Marked the threads under the turn buckle for a reference point to retention at same point on the wire stud.3) Backed the turn buck off to relieve tension on the stay.  Unpin the wire from deck chain plate and secure it out of the way. 4) Remove the strut nuts. All tension must be removed from the strut before attempting step 5. 5) Removed the cotter pin and backed the threaded pin out of the strut clevis and lifted the strut away from the inside chain plate and stowed it away until ready for reinstallation.6) Remove the 4 chain plate fasteners and chain plates. 7) Re-bed chain plates.8) Reassemble in reverse order.Even though you’ve removed tension from the stays, unless the strut nuts are loosened the strut is still in tension and putting a load on the chain plate fasteners.  
It’s far easier to accomplish R&R of the chain plates without interference of the strut still attached to the lower chain plate. 
The wrench I used was not on the boat.  Just now put a crescent wrench on a strut nut, removed the wrench and measured the gap between the wrench jaws with a micrometer and cam up with, 1 3/32”.  Not sure if this will help.
Also used Beddit tape from Marine How To - DIY for Boaters - Marine How To 
  
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Marine How To - DIY for Boaters - Marine How To
 
By Ben
 
For DIY boaters in an attempt to try and keep the sport as affordable & safe as possible. How To articles for sailboats and powerboats.
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Used this as well to re-bed stanchions.
Jack F.s/v wetted bliss#441

Sent from Yahoo Mail for iPad


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Today's Topics:

  1. Chain Plate qustion (M K)


----------------------------------------------------------------------

Message: 1
Date: Thu, 25 Apr 2024 15:39:04 -0400
From: M K <mknoll8181 at gmail.com>
To: c320-list at lists.catalina320.com
Subject: [C320-list] Chain Plate qustion
Message-ID:
    <CAE5wCLtq87VhEyCw-je6b2LJSx8SBS36paNbGJ2twVEv2qbu_w at mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

Hello All,
New to the list, and a newbie with the 320, so bear with me.  Hopefully
this posting will work properly.

I have read the procedure posted by Warren Updike regarding rebeding the
chainplates.  Planning on starting  it this weekend before spashing my boat
in a few weeks.  I need to address a leak at the middle plate (port side)
with dual shrouds attached.

The procedure indicates the need to remove the strut, and be careful to
note the position and sequence of the spacers above the nut.  For those
that have done this can you share the size of the nut? I have measured with
a caliper, but the angle was such that the reading might be inaccurate.  I
suspect it is either 1/16 or 1 1/18.  I would like to order the proper
crows foot "socket".

My second question relates to a conversation with a fellow 320 owner at the
marina that indicated he has rebeded his chainplates multiple times and
that his strut will slide down thru the deck once the shrouds are released
and the 4 phillips head thru bolts are removed.  I suspect that he is
fortunate that he doesn't need to remove the strut to do the job, but  I
wanted to ask those that have done it, is it more typical that you will
need to remove the strut to properly rebed the chainplate?

Thanks,
Matt Knoll
#315 MaryAnne


End of C320-list Digest, Vol 4636, Issue 3
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