Tony's Tips ARTICLE DATE: 10/01/2006
Marine Exhaust Systems
 
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Introduction Exhaust Size Designing a System Design Failures Building a System Dry Exhaust
Underwater Exhaust Exhaust Images-1 Exhaust Images-2 Exhaust Images-3 Exhaust Images-4 Summary
Exhaust System Images - 3
Earlier style heat wrap design using wire to fit / secure the wrap to dry riser - We prefer the more expensive "SS spring" design.
Un-finished 6" dry riser. Deep hulled sail boat - Tall dry risers for both the Cummins 4B main and 2 Kw Yanmar auxiliary. The tops of both engines are about 12" below the waterline.
Cummins 6CTA 8.3 with 4" dry to 6" mixer. Cummins 6BTA 370-Starboard riser in 35Ft Bertram - 4" dry to 6" mixer.
6" simple 95 degree "wet elbow".
Cummins 370 Diamond-Starboard-3" dry to 5" mixer - 36Ft Hatteras. This style dry riser shows the ultimate in safety-100% "over the top" water injection on the down hill side.
Cummins QSM 580 with 4" dry riser to 6" mixer to custom lift muffler w/ 8" side outlet. Properly designed flush side exit.
Connection to 6" surge tube.
Cummins 255C with high mount turbo-Port "over the top" dry riser and 5" wet mixer. Cummins 255C with high mount turbo-Starboard "over the top" dry riser and 5" wet mixer.
Tacked up dry riser to 6" wet mixer. Simple dry system riser for Cummins 350C.
Cummins 6BTA 370 - Port riser/crossover 31 Bertram.
Yanmar JH3 - Sail boat dry riser to 3.5" mixer and lift muffler. Yanmar JH3-Dry riser, shown without exhaust wrap.
Cummins 6CTA 8.3 - port crossover - 5" wet mixer to 6" surge tube. Cummins 6BTA w/ 4" riser to 5" mixer.
 
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For more information contact: tony@SBMar.com