Hi Randy,
I offered for you to get back to me on #2 if you weren't proceeding with #3.
So here it is, practical repair strategy 2:
- flatten mast area under spreader base(s) with flap sander, hand
file or belt sander
- make two (2) pieces aluminum plate 1/4" thick slightly larger area
than spreader base
- drill hole in each plate same size as stout bolt and alignment as
per spreader base
- glue each plate to mast, using stout bolt as alignment tool, using
something like "Devcon" metal repair as to secure the plates and even
out the "hollowing damage" and enough to fill old holes
- drill & tap new screw holes in new plate to match spreader base
- reinstall spreader bases
Tips:
- Don't worry. Be Happy
- The spreader base deformation likely happened during fabrication.
It looks typical of stainless steel "pulling" in high heat situations
- You are correct in assuming the stout bolt does almost all the work
- I might throw a couple of rivets into the new plate to feel
better... just don't put 3 holes the same size in a row close
together (including the screws) as that can propagate into a crack a
few years down the road.
Cheers, Russ
ex-Sweet 35 mk-1
At 03:30 PM 9/25/2018, Randy Stafford via CnC-List wrote:
Hi Michael,
Yes - a stout bolt with both ends threaded, and a stout nut threaded
on inside each spreader bracket tube. I believe those nuts and bolt
are what keep the windward spreader bracket from pulling off the
mast due to tension from the windward lower shroud (the four screws
on the bracket plate probably aren't strong enough alone).
Cheers,
Randy
On Sep 25, 2018, at 11:18 AM, Michael Brown via CnC-List
<<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> wrote:
Date: Tue, 25 Sep 2018 10:44:23 -0600
From: Randy Stafford
<<mailto:randal.staff...@icloud.com>randal.staff...@icloud.com>
Subject: Re: Stus-List Tree Trimming
Thank you all for your replies and suggestions, some of which were off-list.
Responding to points in the order received:
1. "Is it safe to sate that the main mast damage is from the screws
ripping out of the mast itself??
The main mast damage IMO is the indentation from the aft edge of
the spreader bracket plate. The screw holes are also damaged, but fixable.
Hi Randy,
did the spreader brackets have a large bolt going through them
and across inside the mast?
I believe mine does and assumed it was handling most of the load.
Michael Brown
Windburn
C&C 30-1
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every one is greatly appreciated. If you want to support the list - use PayPal
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