Foam stringer replacement with cap in place

[stephenspann27]

ok, so I think I figured out what is going on. I think my hull is "bulsa" cored. when I was grinding to install the ski locker floor I saw grains of wood in the hull. I also feel like I saw some water run out of the hull while I was grinding, this could have been sweat, but I'm pretty sure it came from the hull. So, if the bulsa core got wet, is it just a matter of time before the hull gets weak and cracks?

 

[stephenspann27]

Nevermind, what I was seeing was chopstrand it looks like.

 

[jbcurt00]

However the boat was built, they wouldn't have put in stringers if they weren't necessary, so no, IMO, the hull isn't strong enough to skip stringers.

 

[stephenspann27]

However the boat was built, they wouldn't have put in stringers if they weren't necessary, so no, IMO, the hull isn't strong enough to skip stringers.

I would agree with you except that the mfg is required to have a certain amount of flotation foam in the boat, these stringers are foam, and have no kind of structure around them, just a single layer of mat tying them to the hull.

 

[stephenspann27]

I hogged out the bad section of the stringer today.. getting my game plan together on the repair. The hull is definitely compromised with the stringer problem. I was under the boat and noticed the hull is curved inward really badly where the stringer is screwed up when sitting on the trailer bunk.

 

[Woodonglass]

You're gunna want to ensure you do the best job you can to get the hull as straight as possible when you re-install the new stringer. It will really negatively effect the performance of the boat if you don't. Heating the glass with a head gun and using heavy weights or rigging some clamping methods will be necessary to force the hull back into shape.

 

[jigngrub]

I hogged out the bad section of the stringer today.. getting my game plan together on the repair. The hull is definitely compromised with the stringer problem. I was under the boat and noticed the hull is curved inward really badly where the stringer is screwed up when sitting on the trailer bunk.]

Yeah, stringers aren't for floatation or decoration purposes. They put foam in the stringer so they would have something to mold the glass around and not for floatation.

You may want to consider adding more glass reinforcement to all of your stringers if the build is that shoddy.

 

[stephenspann27]

You're gunna want to ensure you do the best job you can to get the hull as straight as possible when you re-install the new stringer. It will really negatively effect the performance of the boat if you don't. Heating the glass with a head gun and using heavy weights or rigging some clamping methods will be necessary to force the hull back into shape.

I'm going to use a bottle jack and a T shaped wood fixture to get the hull straight. I'm going to make a temporary trailer bunk to get the weight off the bad spot.

 

[Woodonglass]

Now THAT sounds like and EXCELLENT plan!!!:nod::rockon:eace: