Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 28-07-2013, 11:18   #1
Registered User
 
DaBod's Avatar

Join Date: Dec 2012
Location: Texas
Boat: None at the moment
Posts: 97
Reducing Engine Noise

Our boat is in desperate need of some noise reduction, so I am curious to know if anyone has any special recommendations. Looks like there are kits available that are pretty reasonable, but didn't know if there is more of a DIY method that saves some $$? Thanks in advance!
DaBod is offline   Reply With Quote
Old 28-07-2013, 12:03   #2
Moderator Emeritus
 
Hudson Force's Avatar

Cruisers Forum Supporter

Join Date: Nov 2008
Location: Lived aboard & cruised for 45 years,- now on a chair in my walk-in closet.
Boat: Morgan OI 413 1973 - Aythya
Posts: 8,453
Images: 1
Re: Reducing Engine Noise

It's not as effective as the quite expensive marine acoustical barriers, but for a huge savings, I would suggest that you look at the firewall mats made of spun fiberglass sandwiched between foil liners. These mats can be ordered from performance automotive shops by the roll (maybe 5' x 8'?) for as little a $1/sq. ft. When you're sealing all the surroundings of the engine room or box, be sure that you are permitting good vented air supply for the engine combustion.
__________________
Take care and joy, Aythya crew
Hudson Force is offline   Reply With Quote
Old 28-07-2013, 13:42   #3
Registered User
 
Suijin's Avatar

Join Date: Feb 2013
Location: Bumping around the Caribbean
Boat: Valiant 40
Posts: 4,625
Re: Reducing Engine Noise

If you buy from Defender.com, the top of the line "Soundown" product is fairly reasonable for it's performance gains, although still expensive.

The key to getting a good result is to use it on as much of the enclosing surfaces as you can. Gaps and uncovered panels can defeat the gains of the covered areas pretty quickly. Also, make sure you use foil tape to cover all the exposed edges of foam. The foam will become friable over time and turn to a fine dust that your engine will really not appreciate in it's air intake.
Suijin is offline   Reply With Quote
Old 28-07-2013, 13:56   #4
Registered User
 
nimblemotors's Avatar

Join Date: Apr 2011
Location: Sacramento, California
Boat: Solar 40ft Cat :)
Posts: 1,522
Re: Reducing Engine Noise

There is a great way to reduce engine noise to a quiet barely noticeable hum..by converting to electric propulsion. Oh I'm on a roll today.
Next someone will ask how to stop that smell of diesel.

This was discussed some time back, i'm sure the thread can be found, but basically if you want to go cheap (like not going electric.. and DIY, go to the junkyard, and rip out the heavy rubber mats on the floor/firewall of cars, the more luxury model the better. Glue it to some super thin lightweight concrete board used for bathrooms, they have like 1/4in stuff, this will give you some fire protection and backing for the rubber,
and while your at it, put some aluminum foil on the inside to keep the heat away too.
And of course always ensure the engine has good ventilation in/out, but not in/out of your habitable space. Just my $0.03
__________________
JackB
MiniMPPT Solar Controller
nimblemotors is offline   Reply With Quote
Old 29-07-2013, 06:48   #5
Marine Service Provider

Join Date: Aug 2008
Location: North Carolina
Posts: 290
Re: Reducing Engine Noise

[QUOTE=nimblemotors;1295815]There is a great way to reduce engine noise to a quiet barely noticeable hum..by converting to electric propulsion. Oh I'm on a roll today.
Next someone will ask how to stop that smell of diesel.

This sound like you are trying to sell electric motors.
NCboatrx is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Advertise Here


All times are GMT -7. The time now is 04:27.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.