SeaAyeOwe
Member
- Dec 17, 2013
- 495
- Boat Info
- 2005 Sea Ray Sundancer 320
Merc. 350 MPI Stern Drives
Blue Hull
Zodiac C285S Dinghy w/ Yamaha 15H
- Engines
- 2 x MERCRUISER 350 HORIZON 300 HP gasoline engines w/Bravo III Drives
Do you mean the high pressure pump failed - I think these units have both a high pressure and a low pressure pump. If so then would the engine still start at idle?To change the fittings requires using a tap to cut threads into the housing. Others have done it with success.
I had a very similar situation this year, and it ended up my cool fuel module was failing - same symptoms but happened at 4400 rpm.
Put a pressure gauge on the fuel rail - no pressure. I decided to replace the whole unit rather than try to R&R the old one. $900 later the boat runs perfect.