RE: [omc-boats] rehap

I just re-foamed last weekend. what fun. I have 3 big pieces of
advice for anyone about to do it - #1 weigh the plywood down with
masonry blocks or something VERY heavy. #2 allow many places for the
foam to get out and make sure those holes are big enough. #3 don't
think that just because the foam looks like it has stopped expanding
that it actually has.

 I drilled several 1.5" holes thinking it would be easier to patch with
FG than a few 6" holes. Also put down a few weights and blocks here
and there thinking it would do the trick to keep the plywood flush and
in place. Watched it expand for a minute or two, saw it coming out of
the holes and start slowing as it cured, thought everything was fine.
Turned my back and worked on another couple areas for a couple minutes.
When I turned back around, the holes were too small and the foam cured
and plugged them. The foam then lifted the plywood (even weighted down)
at the edges by about 1" and then dried there solid. Not fun to fix
that one. good luck!

-----Original Message-----
From: owner-omc-boats@... [mailto:owner-omc-boats@...]
On Behalf Of tpaquette@...
Sent: Friday, May 11, 2007 12:50 PM
To: omc-boats@...
Subject: Re: [omc-boats] rehap

Oh yes a common topic.

The foam under the floor absorbs tremendous amounts of water once it
gets in.

Many of us have removed the thin plywood flooring. Removed the foam.
Replaced the floor with marine ply and refoamed the core.

It is not very difficult or expense. (Few hundred dollars perhaps)

If you are good with basic fiberglassing it will take you a couple of
weekends. There are some good photos that are somewhere on the site
showing completed projects

Others on the list are further along in the process than I am. Many
have finished it. I am getting the new plywood and foam to complete the
project next weekend as the weather is finally nice. Unless anyone
thinks my Wife wont mind me doing it on Mothers Day weekend......

As for the power, mine is an outboard so I cant speak too much to that,
but it too is a common thread.

Tom
Charlotte, Nc

>
> From: "Kenneth A. Gullicksen" <kag@...>
> Date: 2007/05/11 Fri PM 02:57:58 EDT
> To: <omc-boats@...>
> Subject: [omc-boats] rehap
>
> Hi. I just signed up for the list, which is a totally new concept
for
> me. I have what I assume to be a common question but don't know how
to
> check for past dealings with it.
>
> Anyway, I have a 1966 Sweet Sixteen that I have had since the
mid-70s.
> Since the mid-80's it has been sitting in my sister's yard. I am
> thinking of repowering it but am wondering if it is up to it. The
hull
> and deck seem solid but there are a couple of holes on the bottom
> (mainly at the bow where it was grounded a few too many times). A
drip
> from that area makes me think the foam is saturated, or at least wet.
> Anyone know how much water the foam can absorb (i.e. the amount of
> weight that would be added), whether there is any wood (bulkheads or
> whatever) under the deck that could be rotted out and, if it all needs
> to come out, how big a job it is?
>
> The trailer needs work to be useable so taking it somewhere to be
> weighed is not really an option. I don't want to spend the money to
fix
> or replace the trailer until I know the hull is worth saving.
>
> I would also be curious to know if anyone has any advice on upgrades
> in general, e.g. replacing the tiller cable steering.
>
>
>
> Thanks.
>
>
>

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Received on Monday, 14 May 2007