Drumerjb
Member
Any formula owners out there that have had issues with sucking air from fuel pickup tube connections where plastic meets elbow in tank? 2006 28ss with 350 mags.
Also locations for tube access.
We had a situation running 2 to 3 ft waves bouncing around at 25 miles an hour for 2 hours. Boat has run flawless for 150 hours. Got back to harbor, calm water & both motors shut down within 5 minutes of each other while we were idling in harbor.
After doing the research I suspect the plastic pick up tube to 90? fitting on top of tank has lost its seal? Fuel tank was below half tank by the time we got back. I have run this tank down to a quarter tank already in the past and have had no issues. There should be about 40 gallons of fuel left in the tank.
And yes I have run two or three tanks of ethanol fuel through it, but I always made sure to put two or three fills of non ethanol premium fuel in it by the end of the season. Always stored with a full tank of fuel for the last three winters in a climate controlled storage facility.
Anybody have other thoughts on what possibly could have gone wrong? I highly doubt the cool fuel pumps failed within 5 minutes of each other with no other runability issues prior. Cool fuel modules felt nice and cool to the touch so they are getting water circulation. Motors have been heat soaked many times and never had a vapor related issue with starting. The one motor did start up at the dock 15 minutes later and ran for 5 minutes at the most and then stopped running again and would not start. It does sound like it's starving for fuel or has water in the fuel but again had no drivability issues in the rough water. Usually with water in fuel it'll pick up a blurp of water and you'll notice it while operating.
If you turn the keys on the fuel pumps will run for the three second prime, build pressure, shut down. Then go to start and engine will run normal for two or three seconds and then starve for fuel and shut down.
Thoughts?
Also locations for tube access.
We had a situation running 2 to 3 ft waves bouncing around at 25 miles an hour for 2 hours. Boat has run flawless for 150 hours. Got back to harbor, calm water & both motors shut down within 5 minutes of each other while we were idling in harbor.
After doing the research I suspect the plastic pick up tube to 90? fitting on top of tank has lost its seal? Fuel tank was below half tank by the time we got back. I have run this tank down to a quarter tank already in the past and have had no issues. There should be about 40 gallons of fuel left in the tank.
And yes I have run two or three tanks of ethanol fuel through it, but I always made sure to put two or three fills of non ethanol premium fuel in it by the end of the season. Always stored with a full tank of fuel for the last three winters in a climate controlled storage facility.
Anybody have other thoughts on what possibly could have gone wrong? I highly doubt the cool fuel pumps failed within 5 minutes of each other with no other runability issues prior. Cool fuel modules felt nice and cool to the touch so they are getting water circulation. Motors have been heat soaked many times and never had a vapor related issue with starting. The one motor did start up at the dock 15 minutes later and ran for 5 minutes at the most and then stopped running again and would not start. It does sound like it's starving for fuel or has water in the fuel but again had no drivability issues in the rough water. Usually with water in fuel it'll pick up a blurp of water and you'll notice it while operating.
If you turn the keys on the fuel pumps will run for the three second prime, build pressure, shut down. Then go to start and engine will run normal for two or three seconds and then starve for fuel and shut down.
Thoughts?