Exhaust Elbows- Required Reading

gerryb

Well-Known Member
TECHNICAL Contributor
Oct 12, 2006
1,974
Somers Point, NJ
Boat Info
"On Vacation"
2006 40 Sundancer
Raymarine E125 & HD Radar + Garmin 5208
Engines
QSB5.9 380 Cummins
Found this online today. I like his approach of dissecting the various elbows and how they have evolved. Still sucks that I'm looking at 3 boat dollars (parts only!) somewhere in the next couple of years to replace my manifolds and elbows (dry exhaust).

http://www.michel-christen.com/ExhaustElbows.pdf
 
Different elbows that what I have on my 7.4s. The top of the elbow has a brass plug that reaches into the inner exhaust passage. These elbows don't have that. I remove the plug to pass a borescope though the hole in order to look for water where it shouldn't be.

Best regards,
Frank
 

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