Page 1 of 3 123 LastLast
Results 1 to 10 of 21
  1. #1
    Join Date
    Dec 2002
    Location
    Gloucestershire
    Posts
    5,233

    Default Engine soundproofing

    Is there any reason why an engine should not be covered with an insulating blanket rather than sound-proofing the whole space?

    I accept that the engine becomes hot during operation but is not the water cooling within the engine sufficient to keep it sufficiently cool?

    Just wondering.
    I'd rather be naked
    www.mastaclimba.com

  2. #2
    Join Date
    Jun 2005
    Location
    Mid Devon
    Posts
    6,376

    Default Re: Engine soundproofing

    It also needs airflow for cooling, round the exhaust tubes from the block to the water cooled manifold and round the water injection bend and around the turbo, if fitted. Boxing it into a sound insulated, well ventilated box is a safer idea.
    Brexit: Taking back our freedom as a sovereign nation.

  3. #3
    Join Date
    Dec 2002
    Location
    Gloucestershire
    Posts
    5,233

    Default Re: Engine soundproofing

    Quote Originally Posted by PCUK View Post
    It also needs airflow for cooling, round the exhaust tubes from the block to the water cooled manifold and round the water injection bend and around the turbo, if fitted. Boxing it into a sound insulated, well ventilated box is a safer idea.
    But very much more difficult.

    We are told that sound-proofing needs to be air tight to be effective. That in an engine space full of ancillaries is not easy.

    The exhaust stub is very short and could be left exposed. I don't think turbos had been invented when my engine was manufactured!
    I'd rather be naked
    www.mastaclimba.com

  4. #4
    Join Date
    Nov 2001
    Location
    Me: Johannesburg South Africa Yacht: Richards Bay East Coast Africa
    Posts
    6,881

    Default Re: Engine soundproofing

    Quote Originally Posted by Graham_Wright View Post
    We are told that sound-proofing needs to be air tight to be effective.
    Not quite true. There must be not direct lines of "sight" at the joints so and sound trying to escape gets blocked by and lips in adjacent panels.
    Life is too short not to have a sea view
    Distantshaws tinyurl.com/yclt6l68

  5. #5
    Join Date
    Dec 2002
    Location
    Gloucestershire
    Posts
    5,233

    Default Re: Engine soundproofing

    Quote Originally Posted by Rogershaw View Post
    Not quite true. There must be not direct lines of "sight" at the joints so and sound trying to escape gets blocked by and lips in adjacent panels.
    Sorry, that is what I should have said. Sound proofing my engine compartment would/will be very difficult due to its volume.

    Access (fortunately!) is excellent but exacerbates the linings required.
    I'd rather be naked
    www.mastaclimba.com

  6. #6
    Join Date
    Nov 2001
    Location
    Me: Johannesburg South Africa Yacht: Richards Bay East Coast Africa
    Posts
    6,881

    Default Re: Engine soundproofing

    Quote Originally Posted by Graham_Wright View Post
    Sorry, that is what I should have said. Sound proofing my engine compartment would/will be very difficult due to its volume.

    Access (fortunately!) is excellent but exacerbates the linings required.
    Ok I did have that issue but reduced the volume of my engine space and I could lift the engine up to get inside to fit the sound insulation.



    Access from top front and back.
    Life is too short not to have a sea view
    Distantshaws tinyurl.com/yclt6l68

  7. #7
    Join Date
    Dec 2002
    Location
    Gloucestershire
    Posts
    5,233

    Default Re: Engine soundproofing

    Quote Originally Posted by Rogershaw View Post
    Ok I did have that issue but reduced the volume of my engine space and I could lift the engine up to get inside to fit the sound insulation.



    Access from top front and back.
    You've shown me yours, I'll show you mine, ahem, when I have a photo!
    I'd rather be naked
    www.mastaclimba.com

  8. #8
    Join Date
    Nov 2009
    Location
    Southampton
    Posts
    35,363

    Default Re: Engine soundproofing

    Quote Originally Posted by PCUK View Post
    It also needs airflow for cooling, round the exhaust tubes from the block to the water cooled manifold and round the water injection bend and around the turbo, if fitted.
    These people don't share your view:

    https://www.nkgroup.co.uk/product/ve...gine-blankets/

    I don't have any experience of their blankets, but I used their lead/foam/foil sheet to line my engine bay in the traditional way and it was very effective.

    Pete

  9. #9
    Join Date
    Nov 2013
    Location
    Perth WA
    Posts
    1,958

    Default Re: Engine soundproofing

    Quote Originally Posted by prv View Post
    These people don't share your view:

    https://www.nkgroup.co.uk/product/ve...gine-blankets/

    I don't have any experience of their blankets, but I used their lead/foam/foil sheet to line my engine bay in the traditional way and it was very effective.

    Pete
    Peter
    What you are saying is not relevant to a boat engine room. They are used on a motor vehicle moving along at 50kph (?) and plenty of ventilation from the front of the vehicle and underneath.

  10. #10
    Join Date
    Dec 2002
    Location
    Gloucestershire
    Posts
    5,233

    Default Re: Engine soundproofing

    Quote Originally Posted by coopec View Post
    Peter
    What you are saying is not relevant to a boat engine room. They are used on a motor vehicle moving along at 50kph (?) and plenty of ventilation from the front of the vehicle and underneath.
    Good point.
    I'd rather be naked
    www.mastaclimba.com

Page 1 of 3 123 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Latest YBW News

Find Boats For Sale

to
to