Hey all:
The original posting is below
Since then I have replaced the fuel pump and plug wires and the coil, lubed the distrubtor wts and had it re-timed and it was good. I am still having the same issue!!!! So What do I try next short of replacing the engine????
I have posted this problem before but I am now gonna give a detailed history and see if it jogs out some other responses....
Volvo penta AQ260a engine and a Volvo 280 outdrive......
I have a 85 Bayliner 2550 Ciera. I have had it two months or so and do not know the previous owner or history. For the first month I had no issues, I went out daily and cruised around for an hour or so no problems. Then I had friends coming up so I went across the marina and got gas and a pumpout and overheated. I changed the impeller and thermostat so call it fixed. The next day I went out with friends and ran it for a couple of hours, tubing etc. Thats when it all started. Cruising at 3500 rpm's or so it started coughing and running rough and I had to throttle it back to keep it smooth. This continued till I was at idle and it died. I took it out of the water and to a trustworthy shop and they gave it a complete tune up. The base timing was set at 8 degrees PTDC and it was changed to 8 BTDC (I do not know the advanced). I got it back and it ran better than it ever has, for about two hours then the same bogging down as described above. Tow number 2. I then had the same mechanic come out and he checked for water and found none and added a water separator. I took it out again and it ran great for a bit then the same issues. Tow number 3 I pulled it out again and had the carb rebuilt. Got it back in the water and same story, it ran great then the same but had a fuel smell at cruise then it bogged down again. We looked at everything then. Pulled all filters, nothing. Pulled the feed tube out and siphoned gas out of the bottom and it was water free with little junk. We pulled the distributer cap and found the rotor metal tab was broken so I replaced it along with the cap. I took it to Kelly's Island last night with no issues (about 4 miles) and about halfway back it started again and I was able to limp it back in, but I could not get it passed 3700 rpm unless I was in neutral, then it was fine. but I was in the no wake zone.
Sorry for the long winded speel..............
Any Advice?????
Thanks Cactus52
The original posting is below
Since then I have replaced the fuel pump and plug wires and the coil, lubed the distrubtor wts and had it re-timed and it was good. I am still having the same issue!!!! So What do I try next short of replacing the engine????
I have posted this problem before but I am now gonna give a detailed history and see if it jogs out some other responses....
Volvo penta AQ260a engine and a Volvo 280 outdrive......
I have a 85 Bayliner 2550 Ciera. I have had it two months or so and do not know the previous owner or history. For the first month I had no issues, I went out daily and cruised around for an hour or so no problems. Then I had friends coming up so I went across the marina and got gas and a pumpout and overheated. I changed the impeller and thermostat so call it fixed. The next day I went out with friends and ran it for a couple of hours, tubing etc. Thats when it all started. Cruising at 3500 rpm's or so it started coughing and running rough and I had to throttle it back to keep it smooth. This continued till I was at idle and it died. I took it out of the water and to a trustworthy shop and they gave it a complete tune up. The base timing was set at 8 degrees PTDC and it was changed to 8 BTDC (I do not know the advanced). I got it back and it ran better than it ever has, for about two hours then the same bogging down as described above. Tow number 2. I then had the same mechanic come out and he checked for water and found none and added a water separator. I took it out again and it ran great for a bit then the same issues. Tow number 3 I pulled it out again and had the carb rebuilt. Got it back in the water and same story, it ran great then the same but had a fuel smell at cruise then it bogged down again. We looked at everything then. Pulled all filters, nothing. Pulled the feed tube out and siphoned gas out of the bottom and it was water free with little junk. We pulled the distributer cap and found the rotor metal tab was broken so I replaced it along with the cap. I took it to Kelly's Island last night with no issues (about 4 miles) and about halfway back it started again and I was able to limp it back in, but I could not get it passed 3700 rpm unless I was in neutral, then it was fine. but I was in the no wake zone.
Sorry for the long winded speel..............
Any Advice?????
Thanks Cactus52