Hey guys,
I have a 50' gibson houseboat with twin Crusader 454's. When I first purchased the boat (sat for about 3 years) I ran her down to my slip about 40 miles away and she ran ok the only problems I had was when the port engine reached 2600RPM it wouldn't rev any higher. The starboard engine ran flawless and will rev up to 4800-5000rpm so I initially thought I had a fuel problem on the port side so I shipped the carburetor to national carburetor in Jacksonville Florida and they rebuilt the carb, I put it back on and replaced the fuel/water separators and did both oil changes. I recently went back out to run the boat and now whats happening is whether its under a load or not as soon as I rev the engine up it hesitates significantly and then powers up and a few times I reved it up and it hesitated then stalled out. its worse off now than before I built the carburetor. Am I tackling the wrong diagnosis with the carburetor? I don't believe so because my timing is setup exactly the same as the starboard engine (which runs perfect) and the engine is setup exactly the same. Any thoughts? I was thinking maybe just some tuning issues with the new carb? but its the same exact carb that came off just rebuilt? Any input would be greatly appreciated. been tackling this problem for too many weeks now!!! Thank you guys.
I have a 50' gibson houseboat with twin Crusader 454's. When I first purchased the boat (sat for about 3 years) I ran her down to my slip about 40 miles away and she ran ok the only problems I had was when the port engine reached 2600RPM it wouldn't rev any higher. The starboard engine ran flawless and will rev up to 4800-5000rpm so I initially thought I had a fuel problem on the port side so I shipped the carburetor to national carburetor in Jacksonville Florida and they rebuilt the carb, I put it back on and replaced the fuel/water separators and did both oil changes. I recently went back out to run the boat and now whats happening is whether its under a load or not as soon as I rev the engine up it hesitates significantly and then powers up and a few times I reved it up and it hesitated then stalled out. its worse off now than before I built the carburetor. Am I tackling the wrong diagnosis with the carburetor? I don't believe so because my timing is setup exactly the same as the starboard engine (which runs perfect) and the engine is setup exactly the same. Any thoughts? I was thinking maybe just some tuning issues with the new carb? but its the same exact carb that came off just rebuilt? Any input would be greatly appreciated. been tackling this problem for too many weeks now!!! Thank you guys.