79' bayliner stringer 16'

[Exotic4x4]

Hi all I'm writing from my smartphone for now..I recently purchased a bayliner mosquito has a shorelandr roller trailer under it..I'm sure the rollers were placed wrong on the trailer for the boat to be supported on. While in the shop I was going to re floor it put on a new deck and recarpet.. until my father came in and was over looking my purchase he noticed the hull was being heived upward from the roller on the trailer this heive is about 3-4' forward from the transom. I haven't torn into the floor just yet.. would this be safe to say I may have a rotten stringer causing this? Will post pix later this evening

 

[Georgesalmon]

Re: 79' bayliner stringer 16'

yup

 

[jigngrub]

Re: 79' bayliner stringer 16'

Not only a rotten stringer, but rotten decking and waterlogged foam too!

Tear it apart... it'll be fun!

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

I posted a picture...now what's the best way to build a cradle to support this so I can still support the boat so I can straighten the stringers ad push he heive down.move craddle locations away from the troubled area I'd assume closer to the rear transom

 

[jigngrub]

Re: 79' bayliner stringer 16'

Den made a nice cradle for his boat:

http://forums.iboats.com/boat-restoration-building-hull-repair/my-project-74-ebbtide-584261.html

Your best bet would be to start the interior demo and get as much weight out of the boat as possible. The wet decking, foam, and stringers are adding a lot of weight to your boat.

You should check your transom too, chances are it's more than likely rotten as well.

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

Quick easy question.. my center stringer will sit flat basically the stringers on either side in order to stay vertical they have about a 1/2 gap or so for the bottom of the 2x4 and the hull..(angled) to be vertical and parallel with the center stringer height . I hope that makes sense..here's my question I'm going to use popcicle sticks under the stringer for my gap to lay my bead of pl down for bedding ...I was wonderg is "peanut buttering" the transition of the stringer to the hull necessary? Can I just use pl and smooth it down with a spoon to have a nice transition? And then start laying glass down? Trying to simplify things and also this is my first restoration so I'm learning as I go

 

[Woodonglass]

Re: 79' bayliner stringer 16'

The PL Cove joint is all that's required. NO PB necessary. NOTE: When using PL as your bedding material, you must wait at least 72 hours before glassing. It requires that time for "Outgassing" and curing and hardening. Use a plastic spoon dipped in Mineral Spirits to form the coved joint.

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

Thanks wood! Sorry I'm not up to date on the correct terminology. And yes I'm sure it'll cure for a week or so I'm ordering my glass for us composites day after Xmas if they're open. I have lots of pix I took I only had the one bad stringer..but since I'm knee deep in it I'm just going to do he whole works! Possibly thinking of decapping it even so I can flip the boat for paint..cap it and paint the rest....also what's the benefit of PB?? Stroger I assume? In my little 16' boat I think this would be way over kill seeing my boat only does about 32 mph. Recommend just follow what factory did one it originally or should I beef it up some and make it more rigid

 

[jigngrub]

Re: 79' bayliner stringer 16'

Have you built a cradle to support your hull while installing your stringers. This is important, especially since you have that gnarly roller trailer.

Have you drilled your transom to make sure the plywood behind the glass is dry and sound?

Your boat will be fine to install the stringers by the factory design, but you can also beef it up if you'd like. You can install bulkheads for ribs at a right angle to your stringers for extra strength, if installed on 2 or 3 foot centers it should increase the strength of your boat significantly. I like the way Frisco did his in this thread in post #31:

http://forums.iboats.com/completed-...ature-deck-stringer-restoration-510077-2.html

This is a good thread about building boat cradles:

http://forums.iboats.com/boat-restoration-building-hull-repair/boat-hull-cradle-help-584635.html

What are your plans for your floatation foam?

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

Yes heading to home depot today get cradle materials and pl... I think I like friscos foam he did on his sea ray. The liquid type that forms open cell foam

 

[jigngrub]

Re: 79' bayliner stringer 16'

That foam is closed cell, which is good... and you can buy it at USComposites too:

Urethane Foam , Expanding Marine Polyurethane Foam

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

I meant to say closed my mistake.. I feel its a better idea to use

 

[jigngrub]

Re: 79' bayliner stringer 16'

Have you drilled your transom to check the shavings?

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

I have not yet no, but certainly will ...may just do it anyway

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

Hi all great news floor is all torn off..the stringers are ROTTEN! The original glass delaminated/ decayed right off the stringers. I noticed the transom was replaced but wasn't properly sealed so I'll be pulling the engine and also redoing the transom as well. The wood is soaking wet my buoyancy floam is saturated. Question I have is I have 1/2 x5" stringers (plywood) with cross members for support. I think it was done poorly from factory. I was thinking on getting some 1x6's from home depot to use as my stringers and basically copy factory design. Sound good to do? I wanted to originally use 2x6's but seeing this I think would be suggestions waaay overkill..any thoughts and ?
http://i1356.photobucket.com/albums/q737/Brock_Lewis/20121225_145150_zps406b3983.jpg?t=1356542646

 

[jbcurt00]

Re: 79' bayliner stringer 16'

If you don't want to go back w/ 1/2" ply, I'd suggest 3/4" ply. It will be a much better alternative then dimensional 1X6 lumber.

 

[jigngrub]

Re: 79' bayliner stringer 16'

What he said^^^^^^

No knots resists warping, plywood is better.

 

[Exotic4x4]

Re: 79' bayliner stringer 16'

Great news I think anyways...only the back half basically behind drivers seat back to the transom have stringer damage...I drilled holes in stringers forward wood seemed solid and dry so I'm going to marry new stringers to the existing seeing is its not a bopw rider nd I'd have to decap the boat. Along w he stringers I'm going to add 2 stringers one where the sag is and one on the other to make it rigid.! Great news I thought.

 

[Woodonglass]

Re: 79' bayliner stringer 16'

Is this and Outboard or Inboard boat? If it's an I/O then you can prolly do the resto without removing the cap. If it's and outboard then more than likely you'll need to pop the cap.

 

[jigngrub]

Re: 79' bayliner stringer 16'

Great news I think anyways...only the back half basically behind drivers seat back to the transom have stringer damage...I drilled holes in stringers forward wood seemed solid and dry so I'm going to marry new stringers to the existing seeing is its not a bopw rider nd I'd have to decap the boat. Along w he stringers I'm going to add 2 stringers one where the sag is and one on the other to make it rigid.! Great news I thought.

You can add stringers if you want, but adding bulkheads/ribs will give your deck and hull better support. You'll have support fore and aft, but also port to starboard as well.

Like in this old Wellcraft:

Expanding foam wasn't used in the construction of this boat to support the deck and hull, so they beefed up the decking and hull by installing bulkheads/ribs.