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Robert James Hanson
New member
Username: rjh
Post Number: 2
Registered: 09-2006
| | Posted on Friday, September 08, 2006 - 01:35 am: | 
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I have a 24.5 ' dory, (I think they are called trap skiffs) with a 4 atlantic in it. right now the exhaust is routed as follows: from the manifold it has about 3" of straight pipe, then makes a 90 degree turn towards the back of the boat, goes out through the motor house (the motor house is about 3' by 7', the width of the boat), then makes a 90 degree turn towards the side of the boat, then there is the muffler, then the pipe rests on a piece of wood nailed to the gunnels. Would it be okay to route the exhaust pipe and muffler straight out from the manifold through the side of the boat, containing it all inside the motor house, or would it get too hot in there? Also could I change the muffler to something that muffles a little better, if so any suggestions? |
Daisy Bailey
New member
Username: captn_hook
Post Number: 1
Registered: 06-2006
| | Posted on Friday, September 08, 2006 - 12:46 pm: |
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I am looking for manual on Acadia stationary engines from 2 to 10 Hp, does anybody know a good place to get one and also where I may get parts for these. Thanks |
miro forest
Senior Member
Username: miro
Post Number: 242
Registered: 11-2001
| | Posted on Tuesday, September 19, 2006 - 01:15 pm: |
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Generally, with the engine cooling water flowing into the exhaust gas stream, the gas is cooled enough that you can touch the muffler without getting burned. At least that has been my experience with the 1 cylinder and the samll 4 cylinder engines that I have. So I think you can re-route the pipe without major concern.
Getting a better muffler will be a bit more of a challenge since they tend to rus out. But , with some poking around you might be able to get one. And if you're really lucky, you'll find one at your neighbour's yard sale :=}
miro |
Robert James Hanson
Member
Username: rjh
Post Number: 5
Registered: 09-2006
| | Posted on Sunday, September 24, 2006 - 10:30 pm: |
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I was wondering if I can use a more modern muffler (my engine cooling water isn't routed into the exhaust) |
miro forest
Senior Member
Username: miro
Post Number: 243
Registered: 11-2001
| | Posted on Monday, September 25, 2006 - 02:07 pm: |
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Yes you can use a non-water cooled mufles, but it will get really really hot and one day you or some one on the boat will get qute a burn. You'll have to also make sure that you've got heat shields around the muffler. Most installations that use dry mufflers, take the exhaust straight up and out. I think this conserves the floor space you have on board.
Miro |
Doug Kimball
Member
Username: doug11k
Post Number: 30
Registered: 12-2003
| | Posted on Monday, September 25, 2006 - 08:24 pm: |
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Robert,
On the 4 hp Atlantic in the 20' Boston dry the owner changed to a modern water type muffler of fiberglass or similar resin ... it muffles vey effectively. He originally had a cast iron non-water cooled muffler and it was difficult to even speak. Much more enjoyable now. His engine exhausts out a thru hull fitting in the stern. |
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