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440 shut down

beanhead

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Hi all, so this morning I went for a spin and on my way home found a good spot to let it rip a little.(68 satellite, 440/727) Low 1, part throttle through intersection then wham-o to the floor, hit 2, ran it up then hit 3rd. Just about where I was letting up the motor died. Coasted around the corner and upon stopping the first thing I noticed was smell of gas. Noticed no visual breakage anywhere..I first grabbed the big socket and gently nudged it to see if it would turn, which it did. Removed the air cleaner lid and some gas came out of it. Primary carb bowl was so full it was above the sight glass (850 demon mech) Thinking because it cut at probably 80mph the pump kept turning with no engine vacuum? Tried to start it, rotated but no start. Repeat, nothing. Swapped the chrome box for the spare orange and with some touch got it to start. Thinking, ok maybe the box just died. Slowly got it home(2 blocks away only) it seemed to sound normal, no missing, clanging etc...after it set awhile plugged the chrome box back in to confirm it was fubar'd and, of course, she roared to life....any ideas? Do I need to tear into this thing or does it sound like ignition is crapping out? Been driving it around pretty regularly in 100+ temps...
 
Coil get hot and cut out....cool off while working on it...good to go again til it gets hot again?
 
The float is adjusted wrong or it is filled with fuel needs replacement
 
Sounds like a float stuck and flooded it through the vent...( gas in the filter base)
Could be. Carb was rebuilt about 2 months ago, been running great, floats adjusted to center of sight window but maybe some crap got in there...I'll give it a good douching. It was acting flooded afterwards, and my oil smells gassy now so it'll get changed
 
Ya, anytime you get fuel outside of the carb that ponds...you have an issue.
What kind of carb? Holley?
 
Mine did that. Found out it was boiling the fuel.
As long as your wide open, your ok. Let off and the fuel comes out
the vent tubes, and floods out. Hold the throttle wide open and start
the engine. See if that's it.
 
Ya, anytime you get fuel outside of the carb that ponds...you have an issue.
What kind of carb? Holley?
It's a demon 850 mech, no choke, made in 2008...
Mine did that. Found out it was boiling the fuel.
As long as your wide open, your ok. Let off and the fuel comes out
the vent tubes, and floods out. Hold the throttle wide open and start
the engine. See if that's it.
I had that problem a long time ago but it's been ok since I insulated my fuel line. It has started up fine the few times I've tried it since it's been home. We'll see if it happens again, everything is checking out ok
 
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