Re: [OMC-Boats] Insulating engine

Wow, you've been busy! Maybe I should drop my boat off to you since you
seem to be running out of things to do! The foil padding stuff JD mentioned
is exactly what I meant and should help noticeably, but it will be like
dropping 1-2 notches on the volume control, not 10-20. Some of the other
folks are better to address the performance stuff -- I'm largely a stickler
for keeping things original and not over-powering my stern drive.
Eventually you'll run up against hull limitations, but I'm not sure how far
off they are from where you're at.

----- Original Message -----
From: "Justin DeSantis" <duc1098desmo@...>
To: "Evinrude & Johnson Boats of the 1960's and 70's"
<omc-boats@...>
Sent: Wednesday, September 09, 2009 10:40 PM
Subject: Re: [OMC-Boats] Insulating engine

>I hadn't even stopped to consider that foam board wouldn't work to
> dampen noise. Ok, so foam board it out. If I stumble upon something
> that would work better, maybe I'll try it. But it almost sounds like
> it's not worth the time. What about some carpet or something?
>
> I guess I'm getting to the bottom of the barrel with tinkering on this
> thing so noise was my next tackle. So far I got my cooling issue
> worked out, and got my pisser working again. It was clogged, so not
> related to my cooling issue. But I guess it's kind of good. Had it not
> been clogged, I would have never suspected a cooling issue. Installed
> the clear lines, found and fixed my cooling issue. Now I have the tell
> tale to show me if I have any more issues. Let's see, what else have I
> done....
>
> I installed a stereo and a couple of speakers. Had some nice speakers
> from a car audio system I used to have. Made an enclosure to hang the
> head unit below the glove box. Mounted speakers in the plywood kick
> panels under the dash on each side. Added a master kill switch to it
> so I can be sure it doesn't drain my battery during storage. Sounds
> great. Removed the extra brackets for things I'll never use like the
> goofy Loran thing and the old ship to shore. Cleaned up everything and
> made it shiny again. Oh and the glove compartment was bugging me. It
> was lined with what looks like old fashioned cork gasket paper. It was
> flaking and I couldn't put small items in there for fear of losing
> them among the cork dust. Plus, it was deep and dark. I hated it. I
> relined it with light gray indoor out door carpeting and just for
> giggles, I added a light. So now I have a nice soft, well lit glove
> box. Also replaced the v belt. So no more belt squeal. Yay.
>
> Waiting for the convertible top to come back from the seamstress. The
> top has never been up but the zippers rotted off it, so they need
> replaced. I also have the side panels for it and the rear piece, they
> were in the previous owners attic, never removed from the original
> packaging.
>
> Next on the list is trying to get the handrails looking good again.
> They're dull and pitted. Metal polish won't do it. I'm going to attack
> them with some #000 steel wool and see what happens. Then while it's
> stored this winter, I plan to take out the table thing and tear it
> apart and rebuilt it with the original metal frame and some new wood
> inserts.
>
> Speaking os possible performance loss, are there any easy bolt on's
> for the V8 Buick that will boost performance a bit? 4 barrel maybe?
>
>
>
> On Wed, Sep 9, 2009 at 10:17 PM, Andy Perakes <aperakes@...>
> wrote:
>> My engine compartment came lined with a thin black foam that has mostly
>> deteriorated over the years. It helps dampen some of the higher
>> frequency
>> noise (foam would need to be a lot thinker to attenuate low frequency
>> noise), but the front of my hatch is vented to allow air in-flow. I took
>> it
>> off the top of the hatch after it started falling because I was afraid it
>> might restrict airflow (at best) or small foam pieces might get sucked in
>> (at worse). Foam board probably wouldn't help a lot as its too dense to
>> absorb much, but auto matting (fiber hood or floor liner) or something
>> similar would help a little. Just be careful not to restrict any
>> airflow --
>> even though the engine is water-cooled, the battery, alternator, etc.
>> still
>> depend mostly on air-cooling. Hotter intake air will also cause you to
>> lose
>> power (though probably not enough to notice except maybe top end).
>>
>> Andy
>>
>> ----- Original Message ----- From: "Justin DeSantis"
>> <duc1098desmo@...>
>> To: "Evinrude & Johnson Boats of the 1960's and 70's"
>> <omc-boats@...>
>> Sent: Wednesday, September 09, 2009 9:44 PM
>> Subject: [OMC-Boats] Insulating engine
>>
>>
>>> Has anyone added insulation to the inside of the doghouse and engine
>>> cover? I'm thinking of adding some foam board to cut down on the
>>> engine noise a bit. Just wondering if it would have adverse effects?
>>> Would it cause the engine to overheat or anything?
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Received on Thursday, 10 September 2009