Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › CUMMINS 6cta 8.3 black smoke › Reply To: CUMMINS 6cta 8.3 black smoke

August 5, 2018 at 6:30 am #35642

Rob Schepis
Forum Moderator
Vessel Name: Tenacious
Engines: 6BTA 5.9 330's - "Seaboard Style"
Location: Long Island, NY
Country: USA

Current conditions and history both point to overloading due to too much prop. Have you verified the rpms with a photo-tach and confirmed WOT rpm’s are 100++ over rated rpm?

What does “repair” of the aftercooler mean?

Post the pics that Mike requested, be sure to include your turbos and exhaust,