[Public-List] Bulkheads

[Wes Gardner via Public-List]

Hi All,

I think the Gougeon brothers of West System fame have been recommending
reinforcing attachment points and penetrations using thickened epoxy.  This
is what I did for my bulkheads.  A PO had mashed 1/4" washers under larger
fender washers that resulted in compressing and deforming the holes through
the plywood bulkhead.  When I redrilled for 5/16" I enlarged the holes,
filled and redrilled for the actual bolt size, I also laid in a good dollop
of thickened epoxy under the very large fender washer that I used in
conjunction with the larger bolts.  I hand tightened the bolts letting the
epoxy compress further into the bolt hole, I then went back after the epoxy
set and did a final tighten.  Once again, my bulkheads were in really
pretty good shape.  The knees for the lowers, when drilled, the drill
shavings came out bright and dry (YAY!) so I didn't do much with them other
than replace with 5/16" bolts.  The tabbing all looks like the day it was
laid up - someone. over the years, has done me a favor by keeping the
chainplates well caulked - I do have the Schaefr chainplate covers...

Wes

On Tue, Feb 2, 2016 at 9:44 PM, Michael Connolly via Public-List <
public-list at lists.alberg30.org> wrote:

> Thanks to all who responded to my request.  There is one question still
> unanswered. Has anyone used bushings around the chain plate bolts to
> increase the bearing surface area of the bolts as they pass through the
> plywood bulkhead? Thoughts about making an even larger hole in the plywood.
> Michael #133
> .
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