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Starboard engine not reaching WOT only hitting 2900, Port will make 3200rpm I’ve attached a spreadsheet with rpms, boost and egt values on both engines, please have a look. Testing was done with full load of fuel, water, 5 persons and Gear/food for a week. Port engine 150hr/3year old major rebuild, runs great, little white smoke at startup, makes WOT 3200. Port engine WOT (3200) has steady even 30 PSI boost. Starboard engine 700 plus hours, long crank startup, rough idle until warm. Performs decently once warm and idles down nice, even while trolling on it alone. some obvious lack of power compared to port engine when you run one up vs the other, but hums right along at 2500rpm, been this way for years Im pretty sure, just rarely push the engines very hard… Starboard engine at WOT (2900) has boost pressure 26-30 psi and “hunts” up and down fairly rythmically. notice through out rpm range higher boost pressures than port engine (see spreadsheet). Maintenance or lack there of Starboard Engine: New Fuel Filters New fuel return pressure regulator “poppet” upgraded “new style” Bosch OEM Injectors per Cummins recommendation Inspected turbo, veins look good, not rubbing on housing, spins nice, no major oil passing through, no radial play. Have not tested injection pump supply pressure (waiting on gauge and bajo bolt) Have not pulled and cleaned combustion air cooler (but have flushed saltwater side, engine temps hold nicely maybe 8 degrees hotter on starboard) have not checked injection pump timing (looks like someone had been in there though). what do you fellas think next steps are? boost/egt data and engine data plate attached
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