[C320-list] Engine compartment sound proofing

[Jeffrey Brown]

Someone on this forum suggest ceiling tiles, which I did and it worked great and cheap. 

Jeff Brown
949-350-5123

> On Jun 19, 2014, at 4:14 PM, Jeff Hare <Catalina at thehares.com> wrote:
> 
> Hi Bill,
> 
> Around 2003 I installed sound proofing in our engine compartment and it made
> a big difference.  Mostly it cuts down the harshness and does drop the
> volume significantly.  But it won't be "quiet".
> 
> I used the 1" West Marine which is a moderately dense foam with a lead-like
> layer in the middle to help hit multiple frequencies.
> 
> I was able to do it in an hour or so.  Even today the adhesive is showing no
> signs of letting go.  You peel the backing off and give it a certain amount
> of time before you stick it on, but recall it was quite easy to dry fit and
> cut with a razor knife.  I purchased the "kit" which came with some silver
> seam tape and some metal plates with pin supports that they say to use for
> overhead spans, but they're  not strictly necessary on our engine covers
> because there is so little area to support.  I think I used one on the front
> cover and none on the aft cover.  Both are fine today.
> 
> Incidentally, if you use 1" on the Front (galley side) engine cover, the
> lower pulley may just touch the insulation.  The trick here is to go ahead
> and install the cover and run the engine.  It's just the very bottom of that
> pulley that might rub just a tiny bit.  When you stop the engine you'll see
> if and where it rubs and can either leave it or carve out a tiny bit.  It
> really won't hurt anything.  You won't be able to use anything thicker than
> 1" on the front.  
> 
> Also, if you purchase a roll of the 1/2" version, you can use it to stick on
> the fridge side to keep the engine from melting your Ice Cream.  :)
> 
> If I were to do it again, I'd still go this route.  I considered the Tiles,
> but it was a lot more piecing together and more seams.  With the rolls of
> stuff, you can cut and install the overhead piece first, then butt the sides
> up tight to it and it helps hold the edges in place.  I cut mine so that
> each cover just used one single piece (including the top), so that's an
> option too.   The first thing you'll notice is how much heavier the covers
> got.  The second thing is that the harshness is down considerably.
> 
> Avoid the sound deadening paint scam.  It's a joke and doesn't work.
> 
> Two pictures of the Job using the West Marine kit.
> 
> http://tinyurl.com/EngineInsulation1
> http://tinyurl.com/EngineInsulation2
> 
> Good luck!
> 
> -Jeff Hare
> 
> 
> -----Original Message-----
> From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
> Of Bill Hutt
> Sent: Thursday, June 19, 2014 5:53 PM
> To: C320-List at Catalina320.com
> Subject: [C320-list] Engine compartment sound proofing
> 
> Ok, new thread.
> I'm looking at a product from Sailorssolutions.com called SPM. It's 1" thick
> self adhesive tiles. Has anyone tried this with good results?
> 
> Bill Hutt
> 
> 
> Sent from my iPad=
>