kulas44
Guru
most of my experience has been with sportfishers and oil field supply boats. They usually try to wring out all they can from an engine. And big mufflers do require a lot of space. I dont know what the maximum startup pressure is for the exhaust on a 6v92, thats not addressed in any of my service manuals, and I've never thought about it. A service bulletin on 2-71 powered gensets cautioned to avoid long cranking intervals because of possible water intrusion. The crank timer was set to preclude that when on auto start. I assumed it was because of using a waterlift muffler. I was "told" by an old mechanic that some DDs wont start with any back pressure, but I dont know personally.
