I am new to the Mercruiser 3.0 and I am having a problem I hope you can help with. My boat is a 1999 mercruiser 3.0 i/o with what I believe is a mechanical fuel pump. I have already looked at my vent line and believe it is fine. I comes up from the fuel tank in a nice gentle arch.
I bought my boat in the fall, I took it out in march and it ran fine. When I had it out in March I had about half a tank of gas. I put in stable and ran it for a while, all was OK
Last week I had problems with the motor sputtering and running rather crappy, I figured bad gas. I put in choke and carb gas additive and filled my tank with 14 gallons of fresh gas. I got the boat out on the lake and after a stubborn time getting it started( assumed I had to get the old bad gas out of the line) the boat seemed to run fine.
I had the boat running at about 3800 RPM 44 MPH, all was good and then all of a sudden It slowed by 300 rpm to 38 MPH just as if I had pulled back on the throttle . a few minutes later it totally died as if it were shut off. I turned the key and it started right back up. this series of events continued. sometimes it would slow to the point of 15 mph with the throttle all the way foward. the wierd thing is that while it is slowing the motor sounds fine, no sputtering or unevenness. Please help
I was looking at the mechanical fuel pump and it looks like there is a bowl with some sort of safety wired locking screw on it ,,, is this the fuel filter housing
I bought my boat in the fall, I took it out in march and it ran fine. When I had it out in March I had about half a tank of gas. I put in stable and ran it for a while, all was OK
Last week I had problems with the motor sputtering and running rather crappy, I figured bad gas. I put in choke and carb gas additive and filled my tank with 14 gallons of fresh gas. I got the boat out on the lake and after a stubborn time getting it started( assumed I had to get the old bad gas out of the line) the boat seemed to run fine.
I had the boat running at about 3800 RPM 44 MPH, all was good and then all of a sudden It slowed by 300 rpm to 38 MPH just as if I had pulled back on the throttle . a few minutes later it totally died as if it were shut off. I turned the key and it started right back up. this series of events continued. sometimes it would slow to the point of 15 mph with the throttle all the way foward. the wierd thing is that while it is slowing the motor sounds fine, no sputtering or unevenness. Please help
I was looking at the mechanical fuel pump and it looks like there is a bowl with some sort of safety wired locking screw on it ,,, is this the fuel filter housing
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