Have Dual 5.7 OSXI-EF with the XDP-B Sterndrives. Took boat aout a couple of weeks ago and Starboard engine coughed and choked when power was applied and stalled above 3000 RPM. Port engine ran fine, Starboard kept stalling sometimes even in idle. Went back to the slip and tested fuel pressure on Port and Startboard. Port Pressure was 20lbs at the Low pressure and 50Lbs at the high pressure. Starboard was not measurable on the low side, did not bother with the high pressure as suspected fuel cell anyways. Had replaced port fuel cell 3 years ago due to intermittent power loss.
Ordered a new fuel cell for the starboard side volvo PN 21608511. Installed and pressures on both engines matched. Took boat out again, boat planed then after 10 seconds starboard engine began to lose power. different than before, and would not build power above 3000 rpm. Engine never stalled, but a clank was heard when trying to work engine to get it up to power. Stopped trying at took it back into slip. Also worth nothing is I did Check both Fuel Pressure Regulator screens and cleaned the paint out of both side, port was minor and starboard was significantly clogged.
Engines have 80 hours on them and the boat is a 2006 Formula 31 PC.
Tanks were stored full and fuel was stabilized.
Anyone think the injectors could be clogged or does the FPR screen protect from that? I have borrowed a code scanner for marine engines and will hook that up to see if any codes were set. Also will take it out an measure pressure on the Rail and pump under load. At Idle the pressure never dropped below 48 even during revving the engine.
2006? Volvo Penta 5.7's 3869330 SN's 4012169172 and 4012169171
Ordered a new fuel cell for the starboard side volvo PN 21608511. Installed and pressures on both engines matched. Took boat out again, boat planed then after 10 seconds starboard engine began to lose power. different than before, and would not build power above 3000 rpm. Engine never stalled, but a clank was heard when trying to work engine to get it up to power. Stopped trying at took it back into slip. Also worth nothing is I did Check both Fuel Pressure Regulator screens and cleaned the paint out of both side, port was minor and starboard was significantly clogged.
Engines have 80 hours on them and the boat is a 2006 Formula 31 PC.
Tanks were stored full and fuel was stabilized.
Anyone think the injectors could be clogged or does the FPR screen protect from that? I have borrowed a code scanner for marine engines and will hook that up to see if any codes were set. Also will take it out an measure pressure on the Rail and pump under load. At Idle the pressure never dropped below 48 even during revving the engine.
2006? Volvo Penta 5.7's 3869330 SN's 4012169172 and 4012169171