Originally Posted by ShadBurke
I thought what I got was a Willard, according to the description but I guess I should have paid closer attention to the dash placard. How are guys getting fuel burn #? Flowscan or ????
Your auction description says:
"PROPULSION: CUMMINS 6BT5.9-210 INBOARD DIESEL ENGINE"
You may actually have a 210. I think
that the only way to tell would be to have the fuel injection pump pulled off and tested (but I'm not expert). There's a possibility that a Cummins dealer could look up your engine you can actually find a serial number (I can't on mine).
I've always calculated fuel burn based on the factory Cummins curves. I know mine is at 210 because I've had the pump rebuilt when I had my injectors cleaned/rebuilt. I know people with the 180 getting the same performance numbers as I am because we're using the same prop. So, technically, with 30 more hp, I could try to go up another inch in pitch...too expensive. I'm happy where I'm at.
As for flowscan for diesel, I have purchased anything like this because: (1) They are much more expensive than gas fuel burn sensors (either the NMEA ones or stand alone Flowscan and (2) I heard that diesel ones aren't as accurate anyways because they have to calculate fuel used less fuel returned. Maybe it's just a calibration thing and you have to be very detailed about it....either way, I don't know if anyone that put one on a Navy 7m RIB.