- Sep 20, 2020
- 298
- Boat Info
- 2001 310 Sundancer
- Engines
- Twin Horizon 357 Inboards (repowered in 2017)
I have a 2001 310 Sundancer with twin 357 Mercruiser Horizons (replaced in 2016 and now have about 300hours on them) and V-Drive transmissions. I have been getting a huge disparity between the fuel consumption of the port and starboard engines. Both engines seem to run fine, although the starboard engine does show somewhat higher oil pressure. My tachs and synch meter don't always agree, but I do my best to keep them synched at all times.
I filled both tanks last Saturday and went for a fairly long cruise. We only ran the generator for about 1 hour while we were anchored for lunch that day. When I filled my tanks after the cruise, the port tank took 42 gallons and the starboard tank took 68 gallons. That means that the starboard engine is consuming about 60% more than the port engine (minus whatever small amount the generator used). It would seem that anything causing that much additional fuel consumption would show itself in the engine performance, but everything seems to run fine.
It's become a real mystery to me, and if there is a problem with the starboard engine I'd like to address it. Any suggestions of how to troubleshoot this would be greatly appreciated.
I filled both tanks last Saturday and went for a fairly long cruise. We only ran the generator for about 1 hour while we were anchored for lunch that day. When I filled my tanks after the cruise, the port tank took 42 gallons and the starboard tank took 68 gallons. That means that the starboard engine is consuming about 60% more than the port engine (minus whatever small amount the generator used). It would seem that anything causing that much additional fuel consumption would show itself in the engine performance, but everything seems to run fine.
It's become a real mystery to me, and if there is a problem with the starboard engine I'd like to address it. Any suggestions of how to troubleshoot this would be greatly appreciated.