1979 19 ft Sea Ox rebuild

Questions about boat repairs with our resins and fiberglass: hull patches, transoms and stringers, foam, rot etc.
MSRiver
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Re: 1979 19 ft Sea Ox rebuild

Post by MSRiver »

Fill gap between stringers and transom and just make sure you glass it up very well. As far as the gas tank do what fallguy says, turn the tank around. That way you have fill hole just come in the deck or you can run it up the side to the cap as well as the vent hose, just 90deg the hose run it up the side and you can make a good cover for it later. As far as stringer layup, now that you have got some good glass work under your belt the stingers wont be much of a problem. I may be mistaken but i wouldnt bother with the 6" 12oz tape unless you plan of doing that by itself and if i were itd be 4 layer and layered. You've already got good working experience with 1700 id do 3 layers 8-6-4 all wet on wet.

Mr Pamlico
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Re: 1979 19 ft Sea Ox rebuild

Post by Mr Pamlico »

I had thought about turning the tank around but I wasn’t sure about the pickup being at the front of the tank. My thought was that if I’m low on fuel getting on plane, or traveling at slow speeds the fuel would be at the opposite side as the pickup.

There is going to be a 115 Suzuki 4 stroke on a six inch jack plate. Before these repairs with it water logged I was pushing close to 40 mph. With the way it is propped it is pretty torquey. I definitely don’t want to skimp on the stringer layup as this boat is going to see a lot of rough water and abuse. The sound and rivers I use this boat on can get pretty nasty. I don’t want to be second guessing my work the first time I’m running across the sound and it blows up. I do plan on using 1700 as that is the fiberglass that I have already and what I’ve been working with. If three layers of 1700 will be plenty sufficient I will do that. But if I need to shoot for an 1/8 inch of thickness with the 1700 I think it would be closer to 5. I know when I did 10 layers for my outside transom skin it was 1/4”

Fuzz
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Re: 1979 19 ft Sea Ox rebuild

Post by Fuzz »

If it were me I would add the extra layers. It is probably not needed but I would rather be sure than have a worry in the back of my mind all the time. In the grand skeem of things a few extra layers is no big deal.

fallguy1000
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Re: 1979 19 ft Sea Ox rebuild

Post by fallguy1000 »

I go 5 layers wrapped. Then 3" square backing plates. Down under minimum 1.5" round washers. I also accept no liability for your work.

I would do 5 layers each side wrapped over so the transom would have 10 on top if my boat. I regret my 8/6/4/2 overlapping because my bottom bolts only have about 5 layers of 1700. Do it again, I'd go 12/10/8/6.
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Mr Pamlico
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Re: 1979 19 ft Sea Ox rebuild

Post by Mr Pamlico »

fallguy1000 wrote: Thu Oct 29, 2020 8:24 pm I go 5 layers wrapped. Then 3" square backing plates. Down under minimum 1.5" round washers. I also accept no liability for your work.

I would do 5 layers each side wrapped over so the transom would have 10 on top if my boat. I regret my 8/6/4/2 overlapping because my bottom bolts only have about 5 layers of 1700. Do it again, I'd go 12/10/8/6.
I do still have to finish the top of my transom so I will keep that in mind when I get there but here I am trying to figure out how many layers of 1700 to use for my stringers. I was thinking 5 layers there as well. I haven’t been able to work on it as much as I would like but I’m hoping to have my stringers finished in the next 2 weeks

fallguy1000
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Re: 1979 19 ft Sea Ox rebuild

Post by fallguy1000 »

Tab the coosa stringers in with say 3 1708 tapes---8,6,4 or 6,6,4 or 6,4,4 lightest

Cap the stringers with 3x1700; no hard edges so varied overlaps by 1" each onto the tapes

My opinion.
My boat build is here -------->

viewtopic.php?f=12&t=62495

Mr Pamlico
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Re: 1979 19 ft Sea Ox rebuild

Post by Mr Pamlico »

fallguy1000 wrote: Sun Nov 15, 2020 3:37 pm Tab the coosa stringers in with say 3 1708 tapes---8,6,4 or 6,6,4 or 6,4,4 lightest

Cap the stringers with 3x1700; no hard edges so varied overlaps by 1" each onto the tapes

My opinion.

I was planning on cutting strips of 1700 to do my tabbing because i have some big scrap pieces left and I already have the 1700. Just to clarify when you say 8,6,4 you mean 8 inches up the stringer and 8 inches to the bottom of the boat right? Not an 8 inch wide piece that would be 4 inches up the stringer and 4 inches on the the boat

fallguy1000
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Re: 1979 19 ft Sea Ox rebuild

Post by fallguy1000 »

Mr Pamlico wrote: Sun Nov 15, 2020 9:50 pm
fallguy1000 wrote: Sun Nov 15, 2020 3:37 pm Tab the coosa stringers in with say 3 1708 tapes---8,6,4 or 6,6,4 or 6,4,4 lightest

Cap the stringers with 3x1700; no hard edges so varied overlaps by 1" each onto the tapes

My opinion.

I was planning on cutting strips of 1700 to do my tabbing because i have some big scrap pieces left and I already have the 1700. Just to clarify when you say 8,6,4 you mean 8 inches up the stringer and 8 inches to the bottom of the boat right? Not an 8 inch wide piece that would be 4 inches up the stringer and 4 inches on the the boat
No. I mean the piece is 8". But 1700 is 17 oz and 1708 is 25 oz. I would tab 75 oz 8" wide or 4 each side, 6",4", or 3" and 2" each side. Since you only have 17 oz tapes; you better use 4 tapes; something like 10",8",6",4" or 5",4",3,2" each side. Then cap all the way down; less 1" each side, less 2" each side or so.
My boat build is here -------->

viewtopic.php?f=12&t=62495

Mr Pamlico
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Re: 1979 19 ft Sea Ox rebuild

Post by Mr Pamlico »

I have gotten behind working on the boat with duck season being in but I am hoping to pick the pace back up. I got the two center stringers tabbed in yesterday. I did 10, 8, 6, 4 with 1700. They feel very solid. I am going to try and get the tank pad glassed over this week after work and the two outer stringers cut out. Hopefully I can get them tabbed in this upcoming weekend.

Image

Image

What is the recommendation/how should I lay out my bulkheads? I know I am going to block in the fuel tank and then I was planning on running a center stringer from that back bulkhead over the tunnel. Not sure if the center stringer is necessary but I figured it couldn't hurt and would add strength to the tunnel. Still kind of undecided on whether I need the center stringer or not

Fuzz
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Re: 1979 19 ft Sea Ox rebuild

Post by Fuzz »

Stringers look good. How far apart are they and how thick is the hull between them?

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