F-25/F-26 Exhaust route
Moderators: BeaconMarineBob, Moderator, BeaconMarineDon
F-25/F-26 Exhaust route
I have been researching these differeneces for a week. Some like mine have 2 single ports of exhaust (dual), some are Y directed from the engine (single). I am wandering if I can Y mine off the motor, run striaght then Y again out my port holes. Or any other ideas of direction. I am designing my decking and looking to add fish lockers. Any free space helps. What is the purpose on these boats for Y exhaust like a car? Same engine as mine so why is mine dual exhaust?
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- The Dog House
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My F26 with a single Chrysler 225 (318) has twin exhaust, with one exhaust per exhaust manifold. There is no cross-over tube to equalize the pressure between the two. The engine runs very well with this setup.
1993 Sea Ray 200 Overnighter OB with 1993 Mercury 150 hp Outboard
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26
1979 Starcraft 14' Rowboat with 2011 Mercury 9.9 hp Outboard
Former boat: 1971 Trojan F26
- prowlersfish
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Nothing wrong with going to single exhaust , It will sound better too IMO. Its very possible it came will single exhaust and was changed , seen this done many times . ( some people like the noise
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Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat

I will try and get a pic for you Jeff of mine as you requested. I have just completely forgotten every time I am at the boat.
1980 Trojan F 25 "MY TYME" (sold)
1986 Thundercraft Magnum 280 "The HAILEY-SAVANNAH"
http://www.cbyc.ca/
1986 Thundercraft Magnum 280 "The HAILEY-SAVANNAH"
http://www.cbyc.ca/
Ok thanks, heck I forgot I asked. I have found a couple online pics of the Y pipe but they are close up engine pics. I would be interested in seeing how the entire run looks, btw when I shake my mufflers they sound like a box of rocks. Should i replace them or just clean them out? Guess I will only need one of them now.
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If they are the rubber ones, you cannot get them and will have to use something different as I am doing. Mine had two of the rubber ones per engine. It will not have one 4 inch one per engine.
The rubber ones had baffles inside which I will bet you are no longer there, exhaust just passes straight through.
The rubber ones had baffles inside which I will bet you are no longer there, exhaust just passes straight through.
Larry Eddington
1984 F-36 Tri Cabin "The Phoenix II"
1978 F-28 "The Phoenix"
Fish Master 2350 Bay Boat
9.5' Dink
1984 F-36 Tri Cabin "The Phoenix II"
1978 F-28 "The Phoenix"
Fish Master 2350 Bay Boat
9.5' Dink
You could use and exterior muffler if you're looking for more space inside, they are rubber. http://www.foreandaftmarine.com/mufflersSALISBURY.htm
This site says they have rubber in-line ones
http://yardeng.com/productwriteup.asp?id=14
This site says they have rubber in-line ones
http://yardeng.com/productwriteup.asp?id=14
She was a 1969 36 ft wooden beauty with big blue 440s that we'll miss forever.
And thanks to the gang, 2012 Trojan Boater Of The Year
And thanks to the gang, 2012 Trojan Boater Of The Year
You asked for some pics on how my exhaust was set up.
here they are.




here they are.





1980 Trojan F 25 "MY TYME" (sold)
1986 Thundercraft Magnum 280 "The HAILEY-SAVANNAH"
http://www.cbyc.ca/
1986 Thundercraft Magnum 280 "The HAILEY-SAVANNAH"
http://www.cbyc.ca/
- alexander38
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Carver 3607 ACMY 454's Merc's
10' Dinghy 6hp Merc.
La Dolce Vita
Let's hit the water !
http://s852.beta.photobucket.com/user/t ... 8/library/
10' Dinghy 6hp Merc.
La Dolce Vita
Let's hit the water !
http://s852.beta.photobucket.com/user/t ... 8/library/