Bob Perkins
05-30-2005, 08:22 PM
Hi Everyone,
It's taken a while to get to this point.. A while back I posted on the topic of exhaust system design. Per usual - I over think the problem. It started with this:
http://www.imagestation.com/picture/sraid162/p7da3748f3c4121a97e641462036ca0c7/f4ab7be5.jpg
However - The exhaust hose took up leg room, and would have made fabricating a firewall a real pain. I came up with ideas on getting 4" Stainless tubing bent for up near the engine, then a custom fabrication from a marine exhaust shop. I was worried about too many bends, etc..
The final answer was much simpler (of course).. just use hump connectors and elbows. My concern over bends was unnecessary.
http://www.imagestation.com/picture/sraid170/p72874af097b5640ea6eff2dc9ec3cdd8/f3ea9941.jpg
With all of that out of the way, I had a funny bend at the back of the boat.
http://www.imagestation.com/picture/sraid162/pa1b31da302c38190efaaea764a179372/f4ab7bd2.jpg
This was much simpler (thanks to the forum) I mitred 4" fibreglass exhaust connectors - glassed and taped them.
http://www.imagestation.com/picture/sraid170/p15b0bde6ba177430efd80ca1eaca2450/f3ea9934.jpg
These worked great.
Made a temporary instrument cluster.
http://www.imagestation.com/picture/sraid170/p294ca02bae07205ec38192d443fd82b6/f3ea994b.jpg
And finally test ran the engine today: It is a new 5.7L Mercruiser. The test firing went great. Mercury Marine did a great job on these engines.
http://www.imagestation.com/picture/sraid170/p72027441f42607c131d5fae20f05d2f9/f3ea9951.jpg
I'm happy this part is over with - The exhaust system was a real trouble spot for me for some reason.. There is not much written on the subject as far as I can tell. I guess that is where experience plays in.
Take Care,
Bob Perkins
My Current project is at:
http://www.imagestation.com/album/?id=4291051329
It's taken a while to get to this point.. A while back I posted on the topic of exhaust system design. Per usual - I over think the problem. It started with this:
http://www.imagestation.com/picture/sraid162/p7da3748f3c4121a97e641462036ca0c7/f4ab7be5.jpg
However - The exhaust hose took up leg room, and would have made fabricating a firewall a real pain. I came up with ideas on getting 4" Stainless tubing bent for up near the engine, then a custom fabrication from a marine exhaust shop. I was worried about too many bends, etc..
The final answer was much simpler (of course).. just use hump connectors and elbows. My concern over bends was unnecessary.
http://www.imagestation.com/picture/sraid170/p72874af097b5640ea6eff2dc9ec3cdd8/f3ea9941.jpg
With all of that out of the way, I had a funny bend at the back of the boat.
http://www.imagestation.com/picture/sraid162/pa1b31da302c38190efaaea764a179372/f4ab7bd2.jpg
This was much simpler (thanks to the forum) I mitred 4" fibreglass exhaust connectors - glassed and taped them.
http://www.imagestation.com/picture/sraid170/p15b0bde6ba177430efd80ca1eaca2450/f3ea9934.jpg
These worked great.
Made a temporary instrument cluster.
http://www.imagestation.com/picture/sraid170/p294ca02bae07205ec38192d443fd82b6/f3ea994b.jpg
And finally test ran the engine today: It is a new 5.7L Mercruiser. The test firing went great. Mercury Marine did a great job on these engines.
http://www.imagestation.com/picture/sraid170/p72027441f42607c131d5fae20f05d2f9/f3ea9951.jpg
I'm happy this part is over with - The exhaust system was a real trouble spot for me for some reason.. There is not much written on the subject as far as I can tell. I guess that is where experience plays in.
Take Care,
Bob Perkins
My Current project is at:
http://www.imagestation.com/album/?id=4291051329