Insulation for engine covers

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Spike Hunter
Posts: 24
Joined: May 15th, '08, 22:34
Location: CA

Insulation for engine covers

Post by Spike Hunter »

Hi,

I am new to the board. I just got my dream boat. A 31bert.

I would like to re-insulate to engine box covers. The exsisting stuff looks black and does not insulate the sound of the cummins diesels very well.

The boat is a 1974 flybridge crusier.

Pete
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nic
Senior Member
Posts: 345
Joined: Sep 6th, '06, 00:43
Location: Sydney

Post by nic »

Hi Pete,

Congratulations on getting your 31, the guys here all seem to like Soundown...no doubt they will chime in or you can have a look at:

http://www.soundown.com/AI.htm

Soundproofing is certainly one area where investment makes a lot of sense.

Regards,

Nic
Hull No. 330 1963 SF "Tennessee"
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Mikey
Senior Member
Posts: 1475
Joined: Jun 29th, '06, 10:12
Location: White Stone, VA

Post by Mikey »

Pete,
Just did mine with two-inch Soundown to muffle those big Cummins. Wow, it's quiet as a library now.
Well, at least a library in a subway station.
Mikey
3/18/1963 - -31-327 factory hardtop express, the only one left.
The difference between genius and stupidity is that genius has its limits.
-Albert Einstein
keysdisease
Posts: 30
Joined: Jan 14th, '07, 20:01
Location: Ft. Lauderdale, FL
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Re: Insulation for engine covers

Post by keysdisease »

Spike Hunter wrote:Hi,

I am new to the board. I just got my dream boat. A 31bert.

I would like to re-insulate to engine box covers. The exsisting stuff looks black and does not insulate the sound of the cummins diesels very well.

The boat is a 1974 flybridge crusier.

Pete
Hello Pete,

Besides insulation there are other things to consider when trying to quiet a Bertram. How the engines get combustion air is a major consideration as vents in the box or cockpit just invite the engine room into the boat.

One thing important to know is that the proper insulation will be heavy. you can't get quiet without spending some weight.

Happy to talk with you about it, feel free to contact me and I'll be happy to discuss options.

Steve Moyer
Soundown Ft Lauderdale
954 761-9188
smoyer@soundown.com
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AndreF
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Posts: 711
Joined: Jun 29th, '06, 09:53
Location: Baton Rouge, Louisiana
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Post by AndreF »

I have 1" Soundown (they will help you , call them) and it's quiet. 250 Cummins.
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I'm not sure but indecision may or may not be my problem.

"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf." - George Orwell

1981 FBC BERG1883M81E
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