Hi, ran into a bit of a problem this week with my Volvo Penta 3.0.
After half an hour if cruising in moderately strong waves, the engine started surging and hesitating, moving the rev needle 400 revs over and 400 under. I put the engine on idle and it immediately stalled. It was then impossible to start. I chacked the high tension cables, and had no spark in cylinder 1 and 4. Kept trying to start, carburetor flooded, then had to wait for the fuel to evaporate. After 3 hours or so it was possible to start the engine but it was still hesitating.
I removed the carb, adjusted the float level, inspected the needle .. all seems fine. I now have spark on all 4 cylinders and boat is starting normally. However I'm hesitant to take it back to the water as I'm thinking it's an electrical problem which may come back once the engine heats up.
Since I had spark on two cylinders, could it still be a faulty ignition coil, or would a bad ignition coil result in loss of spark on all 4 cylinders? Could it have been some dirt in the carb, which eventually passed? What else should I look out for?
Engine has been completely rebuilt and only has 3 hours on the clock so I cannot let it idle too long, so cli cannot test the boat out of the water.
Thank you
After half an hour if cruising in moderately strong waves, the engine started surging and hesitating, moving the rev needle 400 revs over and 400 under. I put the engine on idle and it immediately stalled. It was then impossible to start. I chacked the high tension cables, and had no spark in cylinder 1 and 4. Kept trying to start, carburetor flooded, then had to wait for the fuel to evaporate. After 3 hours or so it was possible to start the engine but it was still hesitating.
I removed the carb, adjusted the float level, inspected the needle .. all seems fine. I now have spark on all 4 cylinders and boat is starting normally. However I'm hesitant to take it back to the water as I'm thinking it's an electrical problem which may come back once the engine heats up.
Since I had spark on two cylinders, could it still be a faulty ignition coil, or would a bad ignition coil result in loss of spark on all 4 cylinders? Could it have been some dirt in the carb, which eventually passed? What else should I look out for?
Engine has been completely rebuilt and only has 3 hours on the clock so I cannot let it idle too long, so cli cannot test the boat out of the water.
Thank you
