Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › New owner of a 38 Bertram Convertible with 6CTA 480ce's – immediate priorities? › Reply To: New owner of a 38 Bertram Convertible with 6CTA 480ce's – immediate priorities?
Thanks, I’d never noticed that tolerance on the spec sheet before. Makes me feel a little better.
I’ve removed the elbow to peek inside the turbo but wasn’t able to snap a photo because the elbow is so darn heavy and I was by myself. I did not see any evidence of water having got in. No corrosion, etc, and the bolts were fairly easy to remove.
I’ve attached the prop scans – before and after. And as I said before, just a month ago (after the prop job) I was at or below your recommendation for gph at cruise.
Perphaps the aftercooler replacement has nothing to do with it and, this being my first summer with the boat, is a natural increase in loading as barnacles start to accumulate on the prop shafts. If so, I suspect I’ll need to prop down again so that I’m still below the curve at the worst point of the season
Question is – should I consider having the port engine prop pitched lower than the stbd to make up for the discrepancy between the engines? Or is that just asking for different problems?