dreadnought Posted July 8, 2018 Report Share Posted July 8, 2018 hi all, i`m looking for some good soundproofing for my engine room on my nb, any suggestions/recommendations please, many thanks Link to comment Share on other sites More sharing options...
MtB Posted July 8, 2018 Report Share Posted July 8, 2018 5 minutes ago, dreadnought said: hi all, i`m looking for some good soundproofing for my engine room on my nb, any suggestions/recommendations please, many thanks Engine ROOM? I just shut the doors on mine. Or do you mean engine compartment under the floor? Cruiser stern or trad? Link to comment Share on other sites More sharing options...
Robbo Posted July 8, 2018 Report Share Posted July 8, 2018 This magazine article may be of use.. https://www.nkgroup.co.uk/file/2014/06/Marine-Soundproofing-YM-article.pdf Link to comment Share on other sites More sharing options...
koukouvagia Posted July 8, 2018 Report Share Posted July 8, 2018 (edited) 3 minutes ago, koukouvagia said: There are plenty of threads about this on the forum. Use Google rather than the forum's own search facility. E.g. search: "canalworld discussion forum sound proofing" For example here's a discussion on the subject. (This is for an engine compartment, not an engine room per se). Edited July 8, 2018 by koukouvagia Link to comment Share on other sites More sharing options...
Neil2 Posted July 8, 2018 Report Share Posted July 8, 2018 The soundproof sheets from TW Marine http://www.twmarine.co.uk/sound.htm I reckon are about the best you can get these days. Don't go for the cheaper stuff. Link to comment Share on other sites More sharing options...
dreadnought Posted July 8, 2018 Author Report Share Posted July 8, 2018 37 minutes ago, Mike the Boilerman said: Engine ROOM? I just shut the doors on mine. Or do you mean engine compartment under the floor? Cruiser stern or trad? compartment under the floor/deck semi trad,i thought soundproofing was soundproofing ? Link to comment Share on other sites More sharing options...
ditchcrawler Posted July 8, 2018 Report Share Posted July 8, 2018 ASAP Supplies https://www.asap-supplies.com/soundproofing Link to comment Share on other sites More sharing options...
koukouvagia Posted July 8, 2018 Report Share Posted July 8, 2018 7 minutes ago, ditchcrawler said: ASAP Supplies https://www.asap-supplies.com/soundproofing Get the 45mm thickness. It's a bit pricey, but very good. Link to comment Share on other sites More sharing options...
DaveR Posted July 8, 2018 Report Share Posted July 8, 2018 (edited) Have had TW Marine fit both hospital silencer and sound deadening. The effect is sooooo good. The silencer is the bigest part of the effect. Where as many places have one or two silencers available these guys have a load which meant that the result is very neat. I have no links to them but I can recomend their services. Edited July 8, 2018 by DaveR Link to comment Share on other sites More sharing options...
Tony Brooks Posted July 8, 2018 Report Share Posted July 8, 2018 1 hour ago, DaveR said: Have had TW Marine fit both hospital silencer and sound deadening. The effect is sooooo good. The silencer is the bigest part of the effect. Where as many places have one or two silencers available these guys have a load which meant that the result is very neat. I have no links to them but I can recomend their services. Ditto except I fitted it myself, they supplied. Link to comment Share on other sites More sharing options...
Cheshire cat Posted July 8, 2018 Report Share Posted July 8, 2018 Ditto. Didn't fit myself because it needed a septaganarian anorexic to get in there and connect it all up. I was only out last week and reflecting on what a good job had been done. Link to comment Share on other sites More sharing options...
Machpoint005 Posted July 9, 2018 Report Share Posted July 9, 2018 Sticking "soundproofing material" inside the engine 'ole can be a waste of effort unless the deckboards fit snugly. Link to comment Share on other sites More sharing options...
Boater Sam Posted July 9, 2018 Report Share Posted July 9, 2018 I got some black foam, about 40mm thick, closed cell so doesn't hold water, and totally fireproof. You can play a blowlamp on it and it won't burn. It is used for prison cell mattresses. Having seen many boats with soundproofing falling off with heat, I glued and screwed mine with penny washers on the screws. Dropped in a big silencer, 900mm X 350mm. It just fits under a cupboard on the rear swim. Almost silent BMC 1.8D in a trad. Link to comment Share on other sites More sharing options...
koukouvagia Posted July 9, 2018 Report Share Posted July 9, 2018 40 minutes ago, Machpoint005 said: Sticking "soundproofing material" inside the engine 'ole can be a waste of effort unless the deckboards fit snugly. Agreed, but done properly it can produce a pretty impressive sound reduction. In my case the decibel level went down from 80dB to just over 50dB. Link to comment Share on other sites More sharing options...
Robbo Posted July 9, 2018 Report Share Posted July 9, 2018 (edited) 48 minutes ago, Machpoint005 said: Sticking "soundproofing material" inside the engine 'ole can be a waste of effort unless the deckboards fit snugly. Unless you are building a separate box around the engine. I'm doing this due to the size of engine room. Edited July 9, 2018 by Robbo Link to comment Share on other sites More sharing options...
koukouvagia Posted July 9, 2018 Report Share Posted July 9, 2018 38 minutes ago, Robbo said: Unless you are building a separate box around the engine. I'm doing this due to the size of engine room. Don't forget to allow openings or grills for the engine air intake and the alternator cooling. In my experience these necessary openings don't make much difference to the sound level. Link to comment Share on other sites More sharing options...
Robbo Posted July 9, 2018 Report Share Posted July 9, 2018 Just now, koukouvagia said: Don't forget to allow openings or grills for the engine air intake and the alternator cooling. In my experience these necessary openings don't make much difference to the sound level. Vents it's good to do something like... Link to comment Share on other sites More sharing options...
Tony Brooks Posted July 9, 2018 Report Share Posted July 9, 2018 1 hour ago, koukouvagia said: Don't forget to allow openings or grills for the engine air intake and the alternator cooling. In my experience these necessary openings don't make much difference to the sound level. May I point out that those air holes in front fo the alternator are unlikely to be very effective. the fans draw air from the back of the alternator to the front and then "spin it outwards" The square hole covered in msh is a far better idea and position. Link to comment Share on other sites More sharing options...
koukouvagia Posted July 9, 2018 Report Share Posted July 9, 2018 35 minutes ago, Tony Brooks said: May I point out that those air holes in front fo the alternator are unlikely to be very effective. the fans draw air from the back of the alternator to the front and then "spin it outwards" The square hole covered in msh is a far better idea and position. Yes, that had occurred to me. However, the alternator is not overheating, even in this hot weather. I'll keep my eye on it and possibly do as you suggest. Link to comment Share on other sites More sharing options...
Tony Brooks Posted July 9, 2018 Report Share Posted July 9, 2018 59 minutes ago, koukouvagia said: Yes, that had occurred to me. However, the alternator is not overheating, even in this hot weather. I'll keep my eye on it and possibly do as you suggest. If its not overheating then why bother - enjoy boating! 1 Link to comment Share on other sites More sharing options...
Neil Smith Posted July 10, 2018 Report Share Posted July 10, 2018 I have a cruiser stern with no sound proofing and normal silencer and don't find it noisy at all. Neil Link to comment Share on other sites More sharing options...
MtB Posted July 10, 2018 Report Share Posted July 10, 2018 17 hours ago, koukouvagia said: However, the alternator is not overheating, even in this hot weather. But have you checked it for overheating with the engine actually running, as well as in the hot weather? Link to comment Share on other sites More sharing options...
koukouvagia Posted July 10, 2018 Report Share Posted July 10, 2018 2 hours ago, Mike the Boilerman said: But have you checked it for overheating with the engine actually running, as well as in the hot weather? Ha ha. Link to comment Share on other sites More sharing options...
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