Tony's Tips	ARTICLE DATE: 10/01/2006
Marine Exhaust Systems

Exhaust System Images - 2

Cummins QSB - 4" dry riser to 5" wet mixer to 6" factory lift muffler to 6" side outlet.


Cummins 370 Diamond - 31 Bertram port engine cross over-3" to 4" dry to 5" mixer.	Yanmar 6LYA370 dry riser - 4" dry to 5" mixer to 6" stern exhaust-V-Drive application.


Detroit Series 60 - 6" dry riser to 8" wet mixer to 10" FRP tube collector to twin 6" outlets to stern - Right side of pics show 100% dry aux exhaust thru side of vessel - 90 Ft Aluminum converted crew boat.	Cummins QSL 400 dry riser - 4" dry to 6" wet mixer.

Detroit Series 60 dry riser - 6" dry to 8" wet - Notice flexible hanger above wet mixer-SS 6" dry flex / "bellows" under wrap on riser.


Cummins N-14 Dry turbo connection - 5" dry to 8" dry muffler and stack.	Cummins 6CTA 430 dry riser - 4" dry to 6" mixer.

Simple Cummins QSM - 4" dry riser to 6" mixer to 8" wet FRP mufflers.


External stern exits - 5" into custom 6" stern port corner outlets.	Custom lift muffler for 20Kw aux and 8" under water exit for Cummins QSM 635.


Simple riser for Cummins QSC 540 - 4" dry to 6" wet.	5 to 6 inch Surge tube connection

QSB riser pointed to the "right spot" eliminating and hard wet bends.


Difficult design with long dry riser for Cummins 6CTA on commercial vessel - 4" dry to 6" wet to existing 8" outlets - Has dry "flex" in riser and flexible hanger attached to "cold mixer".	Yanmar 6LPA custom exhaust riser - Notice pyro probe lacation.