JimChuffff

These mountings look good. I've got a set of mountings in the deck under the generator already where a winch used to be atahced, so I could use these. My latest thinking is to try to insulate the engine a bit more - maybe use an external radiator and put acoustic panels around the engine. And maybe put some kind of baffle between the engine and generator. I'd probably need some cooling for the alternator still though. Then lag the outside of the case with acoustic foam, and put a nice hutch over the top with more foam on the inside. I'll post pics as soon as I get round to this... cheers Jim

That sounds really good - mine makes a racket - you can hear it over the neighbours' generators... (its a 4500s too). Mine is plonked on the roof so no engine room insulation there. I'm reckoning on puttng sound proof mat on the outside, I've got some steel that could be turned into a box which I was going to lag inside with polyurenthane. I'm not sure how to attach the exhaust, or what to do about cooling yet - engine should be fine moving the radiator to the outside of the box, but I'm not sure about the alternator. Any clues on how to attach the exhaust? cheers Jim

Hi, I've just humped one of these same generators onto my boat - what did you use for rubber feet? I'm standing it on polyurethane blocks at the mo which helps a bit, but its still too noisy for her below decks and the neighbours - any tips as to what else will shut the thing up? cheers Jim

If you are sticking on foily stuff, put the foil facing into the boat. The shiny bit is meant to stop radiant heat loss. If you were sticking another layer on, I'd put it shiny side facing out over the ribs in one big sheet, (shiny side facing shiny side like in the vacuum bit of a vacuum flask - smash yours and see how they do it). I've got sprayfoam and my only grumble is condensation on the battens, so foiling over everyhing might solve this a bit... No idea about glue. It needs to be waterproof as you'll get condensation running down the hull. (I don't think there's much you can do to stop this) hope this helps.. Jim

Did you have any luck DIYing a silent generator? I've just got an old Kubota lowboy (allegedly) silent generator, which is not so quiet (yet)... its currently sat on deck (where its going to stay), standing on chunks of 1" polyurethane board so soak up some vibration, which does work a bit, but not really enough. Have you got any tips on how to reduce vibration transferring to the hull, and how to enclose it so as to not annoy the rest of the world? I'm thinking a hospital silencer (got one in my shed) and layers of polyurethane slab with neoprene inbetween around the engine. Space is not a problem, so a 4" thick box around it would be OK. thanks in advance, Jim

Keep your hair on - this could take months. I'll tell you if I get a reply... Jim

Hi, Did anything come of this? Or do you know of any cooperative moorings that exist? I'm dreaming about a similar thing.... My understanding of the law side woul be: - BW - you can moor if it doesn't get in the way of navigation - ?? - you can moor your own boat on your own land (i assume this means freehold or leasehold) - council - don't mind as long as its non-residential. putting up sheds, carparks etc is when the will start to complain does anyone know anthing contrary to this? cheers Jim

If they are good enough for industry, they are good enough for me. Do you know if he used the MDF as a mould (which was removed afterwards), or did the MDF end up embedded in the GRP? From experience, MDF plus water == soggy mess, so might lead to troubles if the MDF was in any way structural. Did he put hatches in them? I suppose standard marine water tight hatches would do the job... Thinking ahead (other projects) - did he ever make GRP hot water tanks? Jim Thanks for your reply - OK I'll knock S/S off my list of potential materials. Jim

Hi all, I'm doing up a barge, and I haven't left much space for water tanks... and they will need to be a funny shape to fit in. (Boat is a tjalk and tanks need to fit up in curved front). I had an idea I could make s/s ones, but the shape is going to make this very difficult. Does anyone have any experience of any of the following? - making plastic welded tanks - marine ply boxes lined with fibreglass/vacuum-formed plastic/anything else (eg a big plastic bag of some sort?) - making a wooden mock-up and getting someone to build a metal one from it Part of the problem is that it needs to be supported on the ribs, so needs to fit pretty snugly. I'm tending towards fibreglass as it seems to be the only option that might actually fit really well. (I reckon I'll need 4 tanks to get about 1000l of water onboard.) any ideas/wisdom/opinions would be gratefully received. Jim Potter