[C320-list] Engine compartment sound proofing

[William Ott]

I used SPM sound proofing tile from Sailor's Solutions on both front and back covers.  On the front cover the alternator pulley configuration was too close to cover so I trimmed the tile away.  I covered the exposed edges of tile with duct tape.  At the same time I bought 2 single loop teak handrails and mounted them on the outside of the covers as handy handholds.  Those fiberglass covers can be awkward to handle. 
Mike Ott
'Amanda Lu'
#508

Sent from my iPad

> On Jun 22, 2014, at 11:22 AM, "Kaare Wold" <sailor3952 at charter.net> wrote:
> 
> I am interested in proceeding with this project to quiet down the rattlecan Yanmar.  I do have some concerns with using a plain Home Depot ceiling tile that is not  designed to function in an enclosed engine environment.  Would appreciate some feedback on the following question.
> Have you owners insulated just the front engine cover or did you insulate both the front and rear?  Thanks for your comments.
> Kaare Wold
> Sheet Music #945
> ----- Original Message ----- From: "Jeffrey Brown" <oceanblues at mac.com>
> To: <C320-List at Catalina320.com>
> Sent: Thursday, June 19, 2014 6:54 PM
> Subject: Re: [C320-list] Engine compartment sound proofing
> 
> 
>> 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=
>