Mako 241, 1990, Where is the Foam?

[Jon H]

Working on a boat we bought last year, has a significant list to port, 1.5" difference in waterline. I suspect waterlogged foam and wonder where the foam is in this boat. Does it go all the way to the top? I'm guess underneath the rod holders and am prepared to cut a large access hole, very carefully, in the inner hull above the deck. Any ideas?

[cgmiller]

Not certain about a 1990, but my 1988 had foam in the gunnels up to the top. There were holes in the deck under the step pads where they pumped it in.

[cgmiller]

Not certain about a 1990, but my 1988 had foam in the gunnels up to the top. There were holes in the deck under the step pads where they pumped it in.

[Jon H]

Thanks Chris, Ill pull those pads tomorrow and take a look.

[ddd222]

there should be foam up to the deck if you cut into an area besides the bilge, I cut out my in deck live well and removed the foam down to the stringers with a multi tool, cut thru that foam like butter

[ddd222]

there should be foam up to the deck if you cut into an area besides the bilge, I cut out my in deck live well and removed the foam down to the stringers with a multi tool, cut thru that foam like butter

[ddd222]

now looking back at what u said I would maybe pressure test tank also?

[ddd222]

now looking back at what u said I would maybe pressure test tank also?

[ddd222]

now looking back at what u said I would maybe pressure test tank also?

[Jon H]

Thanks CJ, I'll check the tank but I think it's fine, always freshwater, no gunk in the bottom of the tank. If I find wet foam, and am able to get it out, is there any feasible way to replace that foam?

[Jon H]

Thanks CJ, I'll check the tank but I think it's fine, always freshwater, no gunk in the bottom of the tank. If I find wet foam, and am able to get it out, is there any feasible way to replace that foam?

[Sailor]

quote:

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Originally posted by Jon H


Thanks CJ, I'll check the tank but I think it's fine, always freshwater, no gunk in the bottom of the tank. If I find wet foam, and am able to get it out, is there any feasible way to replace that foam?

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You probably have water trapped in the foam somewhere. I would re-seal all deck penetrations to stop any more water getting in and then try to dry it out with fans. If that doesn't work, then you can go exploring.

In regards to foam, each boat is different depending on the guy who put it in at the factory. There wasn't a set standard or any check, just put foam in it to support the deck and give it flotation.

[cgmiller]

you can buy closed cell foam kits from us composites down in florida..2 part kits...come in different sizes, mix 2 components together and pour it in...expands and fills areas.

[cgmiller]

you can buy closed cell foam kits from us composites down in florida..2 part kits...come in different sizes, mix 2 components together and pour it in...expands and fills areas.

[Jon H]

Thanks for the info - no standards at this time I guess, but built to strong!!!