engine noise reducer?

[Frankiea87]

so im thinking of a way to reduce the motor noise from outside the boat. the "doghouse" engine cover seems to have lost its insulation underneath. would the spray foam insulation work to help reduce the noise of the running motor? or any other cheap noise reduction options?

 

[180shabah]

Re: engine noise reducer?

Don't forget about flamability and the fumes released in a fire.

 

[Blujay96]

Re: engine noise reducer?

I would say a layer of insulation and then some thin plywood to protect the insulation.

 

[BaileysBoat]

Re: engine noise reducer?

Lots of products like this at auto parts stores. Jeggs has a version.

Saw this on Jay Leno's Garage.

http://www.dynamat.com/products_automotive_dynaliner.html

 

[cr2k]

Re: engine noise reducer?

My experience with spray foam (although not on boats) is that it is a ridged or hard foam when it sets. hard foam may insulate heat but it will transfer noise instead of absorb it.

 

[ENSIGN]

Re: engine noise reducer?

Lowes sells 1'thick foam insulation that has a aluminum vapor barrier on it.You could use some liquid nails to attach this to the inside of the dog house.