Made a three hour trip back from CT with newly acquired 2008 330. As we made the turn into the Westport River mouth my starboard engine quit. Check for fouled prop, nothing. Gauges all good. Temp and oil pressure good. Made it to mooring on one lung. Once on mooring, about and hour later a restart went fine. Ran engine on engine at different rpms, fine. Any ideas? Water separator, fuel filter? Just plain bad luck?
Starboard engine failure
- Thread starter Squid1962
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Did you check the fuel line bulb pump to see if it was sucked flat. Next time you run it , check if the bulb goes soft or is flattened under heavy throttle. Indicates fuel starvation.
PointedRose
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First thing tomorrow. Thx. I’ll start at the tank then via water separator then filter work my way back. Thx so much
Be aware that there will be an anti-siphon valve at the top of the fuel tank. It will be right at the elbow. They are known to create problems occasionally. Do a search of this forum, I'm sure it must have been discussed .
Verify also that it died and did not go into limo mode. Did the motor die out slowly or in an instant?
If the later, it may not be fuel starvation. I also doubt water in the fuel separator. You should have seen a water in gas alarm ( I assume you have that signal on those motors) and in addition, if there was as much water as it takes to kill the motor, letting it sit wouldn't help a lot. I doubt it would start easily after the wait.
I am also curious how you would know that the oil pressure was good if the engine died
If the later, it may not be fuel starvation. I also doubt water in the fuel separator. You should have seen a water in gas alarm ( I assume you have that signal on those motors) and in addition, if there was as much water as it takes to kill the motor, letting it sit wouldn't help a lot. I doubt it would start easily after the wait.
I am also curious how you would know that the oil pressure was good if the engine died
Hmmm. Up until it shut down in an instant the gauges all looked good. I took a peek as we turned toward the harbor channel marker. Since then I have restarted numerous times and she purred like a kitten and all gauges read normal.
These gremlins usually don't go away by themselves unfortunately. Quick and complete shutdowns are usually electrical in nature, It could be as simple as an intermittent emergency kill switch or the ignition switch itself. ( probably not the switch if the gauge was still working after the motor died)
I would also check and reset the fuses on the motor.
I would also check and reset the fuses on the motor.
One of the most common problems that can produce similar symptoms are intermittently clogging the VST filters. Just had similar problem with a 150 that had debris in the VST and the filter would clog intermittently. If the filters have not been changed since new it’s always a good thing to do. Not that hard.
I'm curious about the "turn". If at speed, maybe the tilt of the boat affected the fuel pick up from the tank? I know it was only one motor, but it seems like a clue.
Once the crazy south coast of MA wind dies down I am going to start backtracking from the tank. Thx
Also, check the fuel lines. I had one line internally delaminate and would choke off fuel to one motor at higher RPM's Rare - but another possibility.
I would expect the motor to display signs of fuel starvation such as surging or stuttering as opposed to the instant shutdown.
It's odd. Runs fine now but haven't been on a hard run since. We were bouncing around pretty good and had been for about three hours when she shut down.
You might want to chat with a Yamaha mechanic and find out if the engine would have thrown and recorded a code when it died like that. Assume you have original F350's? I'd probably want to run the engine diagnostics and see if it can tell you about any known problems.