Progress on the Starboard Aft cabin stringers

I cut all the old junk secondary stringers on the Starboard side out a couple of days ago.  One of the vertical stringers was half full of water!!! You can see the dark area just ahead of the forward stringer.






Here is a closeup of the water leak. Not something I really want to see in my boat! You can also see the rather poor job done on these stringers.

Here is a shot taken after I had cut everything out and ground all the bad glass work off. There was a lot of the glass work that had not bonded to the hull laminate. The telltale sign is the glass being a lighter color, than when you grind it it gets lighter then pops off just as you grind through it. Took 5 hours of grinding to get everything cleaned up on the Starboard side and the transom.

The next job was to glass the horizontal stringer with 2 double layers of 24 Oz. Roving and 1.5 Oz. Mat.

I used Combo Mat which I had to wet out before I put it on. The advantage of combomat is that the mat and roving are stitched together so when the mat is wet it does not slide off the roving. The main disadvantage is that it is very hard to wet out if you apply it with the mat side down. Another disadvantage I found is that it does not conform to compound curves as well as separate mat and roving does.... Anyway it is done.

Next came glassing the outer side of the Starboard outer stringer in the aft cabin. This is the last bit glassing to be done on the stringers. Seems like I have been working on them for ages.
The last bit of glasswork before building the secondary stringers  was to finish glassing in the aft starboard side of the aft engine room bulkhead. That got another 3 layers of 1708 biax plus 1 layer of 1.5Oz. Mat. I also made and installed the limber hole to drain any water from this area into the engine room where it can find its way to the bilge. I make a fiberglass tube by wrapping 1708 biax around a PVC pipe covered in wax paper. After it cures I drill a hole through the bulkhead for the pipe. Then I seal it in with resin thickened with grinding dust. That way I know that the water does not get into the stringers like before.
I laid out and cut all the secondary stringers this afternoon. Hope to glass them in tomorrow, weather permitting.