Here is my frustrating story for the past three months. 310 Sundancer with 350 Mags.
The port engine started having problems with starting and keep running. Of course everything worked fine when the mechanic was there.
The engine starts and then may run two hours or two minutes. Then again it may not start after it died. Here are some scenarios.
1) Engine would start and idle, run for a couple minutes and die.
1a) I changed the water separator filter and the inline fuel filter.
2) Go out for a cruise at 3000 rpm for 30 minutes then engine died. Turns over but would not start. Tried for 15 minutes. Gave up, came back to the dock one engine for and hour. Then engine started up when at the dock.
3) Go out for an hour at 2000 rpm no problems. Sit in a cove for 7 hours. The engine would turn over but would not start (tried 20 minutes). Come home 10 miles on one engine, then port started at the doc.
3) Go out for a 3 hour cruise no problems.
4) Go out for 10 minute cruise no problem. Time to come back, runs for 5 minutes dies, will not stay running at all.
5) mechanic comes out when I'm not there, runs for an hour in the slip, no problems. Checked fuel pressure and all fuel pump connections, no problems.
6) OK, another weekend, same issues. Started engine checked all electrical connections no loose ones.
I have read threads about the AIC valve, but they discuss problems with idle. Will that valve cause problems at rpm?
Any other thoughts????
Thanks, Duane
The port engine started having problems with starting and keep running. Of course everything worked fine when the mechanic was there.
The engine starts and then may run two hours or two minutes. Then again it may not start after it died. Here are some scenarios.
1) Engine would start and idle, run for a couple minutes and die.
1a) I changed the water separator filter and the inline fuel filter.
2) Go out for a cruise at 3000 rpm for 30 minutes then engine died. Turns over but would not start. Tried for 15 minutes. Gave up, came back to the dock one engine for and hour. Then engine started up when at the dock.
3) Go out for an hour at 2000 rpm no problems. Sit in a cove for 7 hours. The engine would turn over but would not start (tried 20 minutes). Come home 10 miles on one engine, then port started at the doc.
3) Go out for a 3 hour cruise no problems.
4) Go out for 10 minute cruise no problem. Time to come back, runs for 5 minutes dies, will not stay running at all.
5) mechanic comes out when I'm not there, runs for an hour in the slip, no problems. Checked fuel pressure and all fuel pump connections, no problems.
6) OK, another weekend, same issues. Started engine checked all electrical connections no loose ones.
I have read threads about the AIC valve, but they discuss problems with idle. Will that valve cause problems at rpm?
Any other thoughts????
Thanks, Duane