1993 Seaswirl w/ OMC Cobra HO 5.0 Ford, 2 bbl, Idles fine, stalls on acceleration

[Dan G.]

Starts fine (a little cold), idles fine and idles (trolls) in gear fine. When I transition from idle to full throttle, the boat accelerates at WOT for about 10 seconds and then sounds like it starves for fuel, slows then engine dies. If I back off the throttle before the engine dies, I can usually go back to a smooth idle speed in gear. I'm stumped. I have new fuel (pumped out the old and replaced with 87 octane- ethanol free), new fuel filter. The electric fuel pump is putting out plenty of fuel. This condition occurred after driving over a very rough road to a lake. Engine flooded while on lake and I had to pull the fuse to the electric fuel pump because fuel continued to go down the carb (stuck float) after engine died. Prior to this, it ran "fine" +/-. Carb is Holley 2300 2bbl (model 80382-1). I've bought a carb kit (and will replace float when I see which one I need) and will see if there's damage in the carb but wanted to get the expert's thoughts before I do anything else. Thanks for your suggestions.

 

[HT32BSX115]

Starts fine (a little cold), idles fine and idles (trolls) in gear fine. When I transition from idle to full throttle, the boat accelerates at WOT for about 10 seconds and then sounds like it starves for fuel, slows then engine dies. If I back off the throttle before the engine dies, I can usually go back to a smooth idle speed in gear. I'm stumped. I have new fuel (pumped out the old and replaced with 87 octane- ethanol free), new fuel filter. The electric fuel pump is putting out plenty of fuel. This condition occurred after driving over a very rough road to a lake. Engine flooded while on lake and I had to pull the fuse to the electric fuel pump because fuel continued to go down the carb (stuck float) after engine died. Prior to this, it ran "fine" +/-. Carb is Holley 2300 2bbl (model 80382-1). I've bought a carb kit (and will replace float when I see which one I need) and will see if there's damage in the carb but wanted to get the expert's thoughts before I do anything else. Thanks for your suggestions.

Howdy,

Welcome aboard!

Your problem really sounds like a carb problem as you mentioned. If an engine stalls on acceleration it's usually the accelerator pump. If it stalls AFTER acceleration it's usually a float problem (the float chamber is empty) so maybe the float level is way LOW.

Either way, do the rebuild.

Post your model number too. (your engine/drive could be a 93 or 92 model) It usually is helpful. Someone out there may have exactly the same model and exactly the same problem!

Cheers,

Rick

 

[Dan G.]

Thanks Rick. I'll do the rebuild and hopefully that will take care of the problem.

 

[mnjjansen]

Why rebuild ? Is checking bowl fuel level by removing the side level plug, check level and then adjust the float level if needed a first step here or is that insufficient ? Anyhow, any results ?