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.

Gary Nylander     
Maryland
gnylan...@atlanticbb.net
  ----- Original Message ----- 
  From: Nate Flesness via CnC-List 
  To: cnc-list@cnc-list.com 
  Cc: Nate Flesness 
  Sent: Wednesday, May 20, 2015 12:12 PM
  Subject: Stus-List mast step redo on a 30-1


  I'll soon have the mast out of my 1980 30-1 (for relocating her by truck) and 
want to
  forestall future mast step issues by redoing/strengthening
  it now. The mast was last out 8 years ago. I've never pulled the oak mast 
step base plate, so don't know what to anticipate underneath. Advice welcome, 
pictures very welcome.


  I'm imagining figuring out the necessary drainage and keel bolt access, then 
using epoxy-saturated oak board or McMaster Carr fiberglass sheets to built a 
new support step, and maybe filling in what I hear is a large empty area with 
micro-balloon slurry?


  She's  an all-freshwater boat which sits in a cradle 7 months a year, which 
may be why its lasted this long with no signs of trouble yet.


  Nate Flesness
  "Sarah Jean"
  1980 30-1


  Siskiwit Bay Marina
  Lake Superior


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