Interesting that C&C put a third cross member in. My boat is a 1973, #166, and
it only has the two.When I repaired the step last year, I put a third member in
between the other two.Also, my two original, and the third I put in, all rest
on the curved shoulder of the bilge. They don't appear to be structural other
than dedicated to hold up the mast.Trying to conform to the curve of the bilge,
it was not regular, was the toughest part.RonWild CheriSTL
From: Gary Nylander via CnC-List <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Cc: Gary Nylander <gnylan...@atlanticbb.net>
Sent: Wednesday, May 20, 2015 2:58 PM
Subject: Re: Stus-List mast step redo on a 30-1
Nate, your 30 is the same year as mine, so I would surmise they are built the
same. Mine is #593. There are three crosswise stringers under the oak plate.
The aluminum box is attached to the oak by long screws and the oak plate is
attached with six long screws. The oak comes off easily. Depending on how dry
your bilge has been kept, the stringers may or may not be weakened. If so, the
fixes have ranged from removal and replacement to just strengthening. I went
the strengthening route and framed each stringer with a bit of foam board and
drilled a bunch of holes in each and filled with G-Flex up to the level of the
oak. No movement in about five years. The problem is that the factory didn't
encapsulate the stringers (which are made up of two pieces of 3/4" plywood
each) on the bottom, and when the bilge is wet, they soak up moisture and get
waterlogged. There's glass just on the sides. Some fixers have just put a large
horizontal tube for drainage and another for access to the forward keel bolt
and then filled the whole cavity with some sort of filler (microballoons,
etc.). You could just fill the lowest part so that your bilge pump keeps things
dry, but to get all the water out, the pump has to be in the lowest part of the
sump - under the mast. Inaccessible. Another bypass fix would be to put in a
bilge drain. My boat had that, and foolishly I filled up that area. I should
have replaced it with one which is flush to the outside, then for half of the
year, the bilge is totally dry. I don't have pictures, but when you take the
screws out of the oak, it will be pretty obvious what is there. Good luck,
email if you have questions, I have been down the road twice.
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