1990s spectrum restoration and tiller conversion

LukeSaatk

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Jul 2, 2026
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I scored this 1990’s blue fin spectrum 19ft for under a grand. It is kinda roached interior wise , but the hull doesn’t have a dent on it. I’ll keep posting pictures sporadically as I’m working on it. Any recommendations or tips are greatly appreciated. I’m just gonna write stuff out as I’m thinking about it.

1. The wood in the transom is rotted. The cap is welded, I assume I should cut the cap and replace the wood the weld it back on.

2. The foam they originally poured clogged any and all drainage routes which is why I suspect all of the old foam is waterlogged. I’ve heard using foam sheets is a better alternative to pouring foam.

3. I’ve traded a welder a KLX110 in exchange for work. We are adding a few more stringers because the top of the gunwales seem flimsy and no stringers run up the gunwales. He suggested that we add a knee brace or two for the transom as well.

4. Should I paint or seal the entire inside of the hull while it’s stripped?
 

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alldodge

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It's got some nice lines, and most likely the stringers are also rotted
 

MikeSchinlaub

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Jan 14, 2025
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Post a closer pic of the top and sides of the transom. All I can see is the splashwell wall. Usually you cut the cap and raise the sides up, but it's been a while since I've done one, and I mostly remember lunds.

Extra bracing surely couldn't hurt. Maybe add some around the seats too, so you don't end up making over sized holes when drilling blindly through the new floor.

I don't see any reason to paint the inner hull. It would just be a lot of work and money for something you don't even see. The aluminum shouldn't corrode anyway.

Don't used construction grade treated lumber for anything. The chemicals corrode the aluminum.

How well do you know the welder? Another member recently had a bad experience where a guy welded on some floatation pods and welded in way too long intervals. It severely warped the transom. Maybe ask for some test pieces of the same thickness first.

Oh, and do try to have fun 🙂
 
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