1985 SN stringer job

Hello everyone.

My name is Dave. New member to the site but have been read forums for about a year and a half on my quest to find a SN. I missed out on 2 before but finally found one which some might have noticed floating around (listed below)(ignore pics 2,3 and 8).

I am going on reading week next week so I will have roughly 8 to 9 days of straight work till it turns into a weekend project. I have collected a lot of knowledge from this site over the past year or so and feel confident in taking this project on.

Some questions I have going in though:

One involving the foam vs. no foam debate. I'm a skier and want a floaty boat so I believe I will go with the foam unless someone can convince me other wise,

The other is drainage from the secondary area into the primary into the bilge. I didn't save the link but saw someone that had drainage cut outs on their secondaries, filled a triangle void up against secondary with sand, then foamed, then removed the foam. It works in my head how the water should just find its way to the void, out the drain, through the primary drain to the bilge.

I will be posting pictures of the project as I go along as almost every stringer thread people are always asking for them.

Thanks guys

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Welcome to the club!

Something odd is going on with your pictures. Might try that again.

Kevin

Like tx said, foam only affects your ability to stay afloat when full of water (boat is sunk). It also promotes rot by holding water against wood structural members. The reason people don't put foam back in when rebuilding is so that the boat doesn't carry any extra water under the floor... And if rebuilt with wood, so it doesn't rot. As far as I can tell, you have 2 options:

1. Don't put foam back in.

2. Put foam back in, and take every possible precaution so that water never makes its way under the floor and into the foam.

I think that combining a foam rebuild with drains is a recipe for disaster, as those drains also serve as intrusion points that do the exact thing you're trying to avoid (get the foam wet).

There are pluses and minuses for refoaming that have been covered ad nauseam. I think you need to make that choice based first (and for the right reasons, not the one you mentioned) and then plan your build from there.

Good luck with your project. Great info on this site. I also battled the foam versus no foam. Ended with no foam.   Added extra ribs and put two check valves on either side of the mains. Put mine in up near the front very hard to get to when the motor is in. But I felt like that was the lowest point of the hull. I think I hve a picture some where.