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    My 84 4winns horizon 195 project.

    2 layers of tabbing is plenty. I think I did 6" and 10" (that's total, not per side) for all my tabbing. But I did glass the sides of my two tall stringers on the bench. I capped with 1708, but 2X CSM will work too. Just know that getting glass to wrap 180 is tough, so the bigger the radius, the...
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    My 84 4winns horizon 195 project.

    I did 2 each way, and much preferred cutting them to height before installing. I also preferred routing the top edge before installation to facilitate an easier capping job once installed. I basically put a full radius on the stringers using a 3/8" radius bit on both sides of the 3/4" stringers.
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    Keel Repair

    Doesn't look too deep, so you may be able to ride with it for today. It also looks high on the bow, so above the water line? I would use color matched gelcoat thickened with cabosil. If you use epoxy, you wont be able to put gelcoat over it. Grind back a little to feather it in, glob it on...
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    My 84 4winns horizon 195 project.

    Wow, your pics bring memories of mine flooding back. Your stringers look great, and congrats on getting the rest of it ripped out. I wouldn't worry about putting any more glass on the transom. The inside skin is likely where the variability in thickness is coming, and that's not the sealing...
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    Any Transom experts here. I have a Transom Rebuilding Question.

    It won't cure without the MEKP. As said above, it should be included with your purchase. Make sure you buy laminating (umwaxed) resin so you can do several layups without sanding. Honestly, based on the questions you are asking, I recommend picking up the phone and calling US Composites. They...
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    Any Transom experts here. I have a Transom Rebuilding Question.

    Just go with layup polyester resin like 435 from US Composites. Epoxy is more expensive, you can't tweak the catalyst to speed up / slow down the cure, and your boat was originally built with polyester. Epoxy is stronger, but the extra strength isn't needed in a rebuild.
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    Bought my first boat to cut, gut and rebuild from bow to stern, including engine. Killed my back and suffered the wrath of the fiberglass demons

    Looks good! I don't miss those grinding days though, lol. Not sure about the stringer remnants. I touched the forbidden spinning wheel while grinding my boat too - unfortunately it was on the pad of my finger and was a lot deeper. It healed back with no finger print in that area.
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    My 84 4winns horizon 195 project.

    A stiff batch of PB can easily fill the gap you're talking about between the deck and stringers. Pipe a tall bead on top of the stringer, lay on the deck, and add weight / screw it down.
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    Any Transom experts here. I have a Transom Rebuilding Question.

    Never heard of a fiberglass gasket. It's probably just the inner fiberglass skin, or what's left of it. You're either going to have to remove the inner skin or the outer skin to get all the rotten wood out. I can almost guarantee you aren't going to be able to find a pre-fabricated fiberglass...
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    Low compression Suzuki OB: 105...105.... and 65

    I agree - that cylinder needs attention. The vertical scratches are why you're losing compression. Also, as Scott said, you're missing part of the piston, possibly due do detonation at some point in the engine's past. You do not need to buy a bore gauge - you need to disassemble the engine an...
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    Vinyl ester filler over epoxy and gelcoat questoin

    Not sure about your first question. For the second question, you should be able to sand (80 grit?) the rest of the hull and re-spray the entire thing. @Scott Danforth is the most active advocate I know on here for Duratec additive and spraying gel. Maybe he can chime in?
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    My 84 4winns horizon 195 project.

    One thing I forgot to mention - the chart shows ounces of resin to cc of MEKP, so the conversions are already in there.
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    My 84 4winns horizon 195 project.

    Yeah, do whatever you're most comfortable with. But, if you want to bust out several layups in a weekend, you can go up to 2% or even slightly higher than that and be OK. I did my restoration in a climate controlled garage, so I kept it about 63F in the winter and 73F in the summer, and almost...
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    My 84 4winns horizon 195 project.

    Looks good. PB and tabbing will make that gap nonexistent and cover all your sins. I never had to worry about poly working time until mid-80's in the garage, and even then, by reducing the MEKP ratio, I could get the working time I wanted. Keep up the good work!
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    Bought my first boat to cut, gut and rebuild from bow to stern, including engine. Killed my back and suffered the wrath of the fiberglass demons

    Sure you can re-gel the whole thing and change the color. You could even get away with not doing any kind of color matching after the transom repair, as long as you are OK with it not being the same color all around.
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    Bought my first boat to cut, gut and rebuild from bow to stern, including engine. Killed my back and suffered the wrath of the fiberglass demons

    The biggest drawback I see to cutting the outside skin off is that along with the glass work you'd have to already do, you're 100% going to have to do some fairing work and re-do the gelcoat on the boat exterior if you don't want it to look bad. Doing all the work from the inside means you...
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    1987 Power Play XLT-185 - floors, stringers, and upholstery

    I couldn't find anyone local to do it, so I sent the computer to Black Bear Performance in Idaho and they did it for me.
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    Bought my first boat to cut, gut and rebuild from bow to stern, including engine. Killed my back and suffered the wrath of the fiberglass demons

    I see. While that looks much better than I initially thought....I'd still consider pulling the cap. I totally get it...I was really against it too on my build until I did it. In the end, I was glad I did, as it afforded me much easier access to everything. Regarding cutting on the flat areas...
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    Bought my first boat to cut, gut and rebuild from bow to stern, including engine. Killed my back and suffered the wrath of the fiberglass demons

    I would cut on the flats. It'll be easier to block sand a surface flat vs. trying to align everything and rebuild that radius when you go to put the piece back in. Think hard about whether or not you want to really try to install a transom and do glass-work through a hole with rough cut...
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    Transom ideas for ib/od

    You'll have to do some measuring - not sure if the old hole is in the right place / small enough to just cut the big hole over it. If it isn't, you'll need to do a transom replacement and cut a new keyhole for the Mercruiser running gear. You may want to make sure engine mounts don't need...
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