Thanks for the input. At least I now know how it was originally constructed. I think I will call West Marine and see their tech folks have any ideas....
>
> From: David <odin@...>
> Date: 2006/09/13 Wed AM 09:52:02 EDT
> To: omc-boats@...
> Subject: Re: [omc-boats] venting the cowling
>
> Sorry Tom, I don't know the answer to that - I watched many times as
> they mounted the floor plywood to the 20 ton, or so, press, then
> lowered it into the hull and the foam was injected through the press
> into the hull - pretty slick operation - when cured enough they let the
> press up and moved the hull down the line to glass the floor etc. I
> think the major consideration is that the foam is closed cell so it will
> never pick up water - and that it is level and securely cemented to the
> new floor so no flexing occurs - It wouldn't hurt to use the highest
> density available though. Dave
>
> Tom Paquette wrote:
>
> > David,
> >
> >
> >
> > I do have a question then that you maybe able to answer.
> >
> >
> >
> > Do you know what density of foam was used/should be used. Under the
> > floor?
> >
> >
> >
> > I have stripped the hull clean and am trying to figure out if I need 4
> > lb foam or what...
> >
> >
> >
> > Thanks!!
> >
> >
> >
> > Tom
> >
> > Charlotte, NC
> >
> >
> >
> > ------------------------------------------------------------------------
> >
> > From: owner-omc-boats@...
> > [mailto:owner-omc-boats@...] On Behalf Of David
> > Sent: Tuesday, September 12, 2006 2:46 PM
> > To: omc-boats@...
> > Subject: Re: [omc-boats] venting the cowling
> >
> >
> >
> > No, I was not an engineer - I assembled prototypes, worked on molds to
> > build prototype hulls etc. then took them out for testing etc. very
> > interesting job but I was there for only a year - then got married and
> > moved away - but at least I got all the training etc. - even have my
> > Certified OMC Mechanic's certificate. Dave
> >
> > jdood wrote:
> >
> > Wow - so you were an engineer at OMC back in the day?! I love this
> > list! (I have so many questions about my boat...........in time).
> >
> >
> >
> > -----Original Message-----
> > From: owner-omc-boats@...
> > <mailto:owner-omc-boats@...>
> > [mailto:owner-omc-boats@...] On Behalf Of David
> > Sent: Tuesday, September 12, 2006 8:57 AM
> > To: omc-boats@... <mailto:omc-boats@...>
> > Subject: Re: [omc-boats] venting the cowling
> >
> >
> >
> > Probably never noticed it - during my stint in engineering at OMC I
> > ran a lot of hours testing on Lake Michigan - there were several other
> > OMC's out on endurance that ran everyday - I do not recall ever seeing
> > anyone run with the engine cover off - so it is likely no one ever had
> > the chance to notice the difference - Dave
> >
> > jdood wrote:
> >
> >So if the engine runs better with vents, now I am wondering why they
> >
> >didn't put them in originally? Noise? Or is there some special
> >
> >marine/safety issue with venting it?
> >
> >
> >
> >-----Original Message-----
> >
> >From: owner-omc-boats@... <mailto:owner-omc-boats@...> [mailto:owner-omc-boats@...]
> >
> >On Behalf Of David
> >
> >Sent: Tuesday, September 12, 2006 6:21 AM
> >
> >To: omc-boats@... <mailto:omc-boats@...>
> >
> >Subject: Re: [omc-boats] venting the cowling
> >
> >
> >
> >It wouldn't hurt anything to put a vent in - but I think I would put it
> >
> >on the port side of the cowling - where the carb is located since you
> >
> >wouldn't see it there - Dave
> >
> >
> >
> >jdood wrote:
> >
> >
> >
> >
> >
> >>I have a 65 omc deluxe i/o that I know little about. I have been
> >>
> >>finding that it seems to be running better without the cowling on the
> >>
> >>engine. Perhaps my imagination, but I don't think so. So did those
> >>
> >>cowlings ever have vents in that nice flat section of the front that
> >>
> >>seems perfect for a vent grill? Would I be screwing anything up to put
> >>
> >>one in there? Those little grills in the back seem kind of useless.
> >>
> >>
> >>
> >>Thanks for any comments!
> >>
> >>
> >>
> >>jeff
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >-----
> >
> >To get off this list send mail to omc-boats-unsubscribe@... <mailto:omc-boats-unsubscribe@...>
> >
> >
> >
> >
> >
> >
> >
> > --
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> >
> >
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>
>
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