82 cougar with 200 ci engine, auto with 1946 carb.
My problems started with a failed emissions test for high HC at idle. I thought the float was hanging down. It was cracked so I replaced it. It had been running pretty crappy with hesitation and surging.
I replaced the float and got about 4 miles of really good running. Next day they same old hesitation and surging with the added engine stops running. The distractor is that when the engine stops pumping the gas pedal brings it back to life. I'm possitive the engine is not off but just gone to lower rpm. It's a bit odd to explain.
On a whim I went ahead and replaced the fuel pump. I'm not so sure how old the pump was but the new one did not affect the problem.
Any there's always fuel present in the carb and there's no problem with the accelerator pump. The engine runs great at idle and revs up with no problem.....until it's under load. This meaning the car actually moving and accelerating. Hesitation, what feels like misfiring and the ever present when I'm trying to drive a 25 or 30 or whatever steady state the engine feels like it's run out of gas for a few moments.
I'm starting to think Duraspark II problems.
Any comments?
My problems started with a failed emissions test for high HC at idle. I thought the float was hanging down. It was cracked so I replaced it. It had been running pretty crappy with hesitation and surging.
I replaced the float and got about 4 miles of really good running. Next day they same old hesitation and surging with the added engine stops running. The distractor is that when the engine stops pumping the gas pedal brings it back to life. I'm possitive the engine is not off but just gone to lower rpm. It's a bit odd to explain.
On a whim I went ahead and replaced the fuel pump. I'm not so sure how old the pump was but the new one did not affect the problem.
Any there's always fuel present in the carb and there's no problem with the accelerator pump. The engine runs great at idle and revs up with no problem.....until it's under load. This meaning the car actually moving and accelerating. Hesitation, what feels like misfiring and the ever present when I'm trying to drive a 25 or 30 or whatever steady state the engine feels like it's run out of gas for a few moments.
I'm starting to think Duraspark II problems.
Any comments?