Waterlogged foam?

KCKracker

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Well I'm pretty sure that I got bit which really just discussed me considering that I'm about mechanic I just bought a 1978 fiber form that is in absolutely beautiful condition the floor is perfectly solid they upgraded to a four stroke but it's only a 1:15 for this 20 ft boat that should be nothing but I put it in the water for the first time today and the motor dish fills up with 4 inches of water above the spillway drain hole and it's about an inch and a half from spilling over the top of the transom while I'm standing on the dock not even in the boat I'm absolutely disgusted.
I was in denial for a couple hours but I'm sure someone here can confirm it this four-stroke 115 is not too heavy for this boat it's supposed to seat six people and the motor is only 130 lb heavier than the original two-stroke.
If one person gets in the boat the water line comes up to the top of the transom so tell me is this two-stroke too heavy for a 20 ft fiber farm it's a deep hole fishing boat and it's four stroke is only 318 lb where is the original two-stroke was at least 250 to 280 I would think?? I'm sure a boat builder on here could confirm what it should be buoyant for.
 

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Grub54891

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As stated, weigh it. I've seen this before. Boat looks good but the foam is saturated and that's alot of weight. Hope it's not the issue. I did one a few years ago at the shop before I retired, The foam was totally gone, heavy stuff. The guy wanted it done so we did it. It was fine when we were done but it was a huge undertaking.
 

racerone

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----" absolutely beautiful condition "------But it appears to be a " pig with lipstick " in reality.-----Cut the floor out and fix it or take it to landfill.
 

KCKracker

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Yes the boat is gorgeous.
 

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airshot

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Probably fund some rotten wood deep in that hulk when you remove the water logged foam. Being a 1978, it is almost a garentee. Your gonna learn to mess with fiberglass or pay dearly for someone else to do it. Good Luck.
 

racerone

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Know of a shop with the back lot littered with boats that look good.----All waiting for a date with the grinder / crusher.
 

KCKracker

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Yep the proof is in it's definitely waterlogged so I guess I'm ripping a floor out God I hate doing fiberglass work
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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floor, stringers, transom, and bulkheads in addition to the foam.... I would uncap it
 

JimS123

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Sounds like this could be a futile effort. 47 year old boats have little monetary value. Rotten boats have no value. Even if you do the work yourself, your end cost will be double the value of the boat.

The pics don't make me warm and fuzzy about gorgeous. But then again I am a boater with 65 years experience. But the engine DOES have value. If you care about economics, I would personally part the boat out and learn from experience.

Sorry to be the bearer of bad tidings, but I would hate to see you spend mega bucks on a lost cause.
 

KCKracker

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Okay update
So I drilled It 2 inch test hole towards the back and there is no foam and it is bone dry and full of cobwebs and I found the placard and it says it's rated for Max motor 175 1 and 1500 lb occupancy.
So why the heck is a 300 lb four-stroke waiting it down so far I don't understand it does not have foam and it's not waterlogged it's bone dry and full of cobwebs
 

KCKracker

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Okay here's the scenario new boat to me 1978 18 ft fiberform with a 115 I can't find my original post but I dropped it in the water yesterday for the first time and it sits dangerously low in the back end where water is at the top of the transom and I immediately thought the four stroke is too heavy but it was originally rated for a 1500 lb occupancy and a Max of 175 so that we know that the boat is not overloaded
Okay scenario too the foam is waterlogged and the boat is way too heavy so towards the back of the deck on each side I punched a 2-in pilot hole for inspection guess what not a drop of water or foam they're just empty holes or Chambers full of cobwebs.
So now I'm completely stumped I was expecting to find water so answer me this is it lacking buoyancy because there is no foam because I've read that foam is only to keep the boat from sinking if it flips over but it does not lift the boat in the water with buoyancy so yes or no can anyone answer that? If it's just a matter of adding foam I can definitely do that I've done it more than once. Here's two pictures of the transom and I'm standing on the dock there's nobody in the boat. And when I step down into the boat water actually came over the top of the transom. Something is causing this there has to be a solution.
 

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JimS123

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Good question.

I guess it needs more clarification. What does water line to the top of the transom mean? (that sounds like the boat is almost sunk)

Next, what about cob webs? There should be foam there. If there is none, then that old boat has been rebuilt before. What did the rebuilder do to the foam and how did he change the balance? (rhetorical)

Obviously, pics would help. Also, proof read your replies....work on grammar and no run-on sentences.
 

bajaman123

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Foam would have no effect whatsoever in the scenario you describe...having foam in the hull doesn't affect the displacement of the water OUTSIDE the hull. Where did you punch the hole at? What does the boat weigh...find some scales and see the results. Rock it hard from side-to-side and see if you hear sloshing. Something seems to have seriously affected the weight distribution in that hull.
 

KCKracker

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Boat specs say 1600.
Foam would have no effect whatsoever in the scenario you describe...having foam in the hull doesn't affect the displacement of the water OUTSIDE the hull. Where did you punch the hole at? What does the boat weigh...find some scales and see the results. Rock it hard from side-to-side and see if you hear sloshing. Something seems to have seriously affected the weight distribution in that hull.
No sloshing. No nothing. Specs say 1600 lbs the under deck is dry cobwebs
 

cyclops222

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There is a lot of weight back there. Find it and remove it. We can not help from our computers.
 

arks

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The waterline stripe looks to be original and is awfully close to the cutout. Also looks like the motorwell is fairly deep. Maybe that was how they were built back then. Make sure the well is well sealed!
How heavy is the kicker? Does it get on plane easily? If not, I might suggest a pair of tabs.
 

cyclops222

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That engine looks HUGE on the back. Somebody tossed any spare engine on the boat and sold it. You buy a boat with no test ride ??
Oh well.
 
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