Adding sound-dampner to engine box?

(fill_er_up) · (fill_er_up) **Join Date: May 2006** 05-30-2006, 5:38 PM

I considered adding some kind of sound dampner to the removable panels on the sides of my v-drive and maybe on the bottom side of the middle sundeck hatch to reduce engine noise. Anyone done this and have ideas on what material to use?

(jarrod) · (jarrod) **Join Date: May 2003** 05-30-2006, 6:35 PM

Hmm...sounds like a cool idea

(grant_west) · (grant_west) **Join Date: Jun 2005** 05-30-2006, 6:37 PM

hey check out cascade audio. They make a bunch of sound dampners I.E hood blankets that would work great for this type of job

(ghostrider_2) · (ghostrider_2) **Join Date: Aug 2004** 05-30-2006, 10:28 PM

have you done it yet GRant? if not when are you..

(acurtis_ttu) · (acurtis_ttu) **Join Date: May 2004** 05-31-2006, 7:14 AM

west marine sells a kit for about $60 that you can do it yoruself.

(souperfly) · (souperfly) **Join Date: Apr 2006** 05-31-2006, 7:57 AM

The Malibu Crew has a complete DIY w/pics for a DD.

http://www.themalibucrew.com/forums/index.php?autocom=custom&page=soundinsulation

(ktmwakeboarder)

Could dynamat work?

(bremsen) · (bremsen) **Join Date: Aug 2005** 06-02-2006, 6:05 AM

Kevin, not really. Regular Dynamat is a deadener and reduces vibrations on whatever surface its applied to.....mainly for rattles and harmonics. You want an acoustical foam material with a heat barrier for this application.

(grant_west) · (grant_west) **Join Date: Jun 2005** 06-02-2006, 6:56 AM

Ryan is right on. Cascade makes a few diffrent engine hood blankets that work in this exact same way

(rodmcinnis) · (rodmcinnis) **Join Date: Sep 2002** 06-02-2006, 12:29 PM

The good stuff is pretty expensive....

http://store.hamiltonmarine.com/browse.cfm/4,11640.html

This stuff has an inner core that is like a lead sheet, then has foam on either side. Note that it weighs a lot, one pound per square foot. It is very effective, however.

Take your time and get it glued on really well. Being so heavy it wants to pull off the walls so make sure the surface is clean before trying to stick it down.

(ktmwakeboarder)

nice nice, very informative and a good idea

(norcalmalibu) · (norcalmalibu) **Join Date: Jun 2004** 06-02-2006, 11:54 PM

I did this project a couple years ago, it has held fairly decent. The only thing that has fallen down is the heat reflective tape, it does not bond well with dampner. If I was to do it again I would just leave the seems a little crude showing the dampner. I used the spray on glue from 3m the strongest hold I think number 99.