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Discussion Starter #1
Ok, truck is a 79 351m bronco.
Ran fine last time it started, once it was warm ran like a top and turned over first crank. Truck had sat for a month our so, and now all it does is crank?

Has fuel and good spark. oh and a good battery. Even tried drizzling fuel into the carb (always worked before) but she won't even try to start, just sits and cranks.

Kinda lost on this one. Oh and dizzy etc wasn't touched, the timing and such are perfect as she ran great before. Killed a battery trying to start the thing .

anyone have any ideas?! Or dealt with this before?
Thanks for any ideas
 

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flooded? whats the plugs look like?

is the spark loud and bright or quiet an dim?

the fuel go bad?
 

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if flooded, pour about a cup of tranny fluid into the carb, itwill bring the compression back helping to start.
also make sure you got a fully charged battry.
 

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I'd be really leery about pouring a cup of incompressible trans fluid into the carb. When the tranny fluid flows into a cylinder with an open intake valve, and the piston tries to compress that fluid, things can break, like rods. Remember that the head has about 60 (something) CCs of combustion volume, a cup is about 237 CCs.

And bringing compression back up has nothing to do with starting a flooded engine.
 

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sounds flooded, hold the gas pedal to the floor and crank it til it fires off. might want to check plugs change if needed.
 

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Discussion Starter #6
Battery is fully charged and almost brand new.
Plugs were fine(going to double check this morning), and checked the spark, constant and hot.

And the fuel was just filled with new gas.

As for flooded, left it for a bit went back nothing same issue. And while trying to get it to start did wot, still wouldn't even attempt to try and start.

Going to try again this morning, recharged the battery last night.
 

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Have you checked the carb to make sure it is getting gas? Take off the air cleaner and look down the carb to make sure it is getting gas. Give it a shot of starting fluid, should run off of that if you have good spark.
 

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'88 XLT. 2" lift, 3G, Saginaw Pump, Headers, High flow 3" cat, 3" exhaust, 6 litre tune, K&N
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I second the starting fluid. Add it to the closed air filter assembly and not the open top carb. That stuff starts nasty fires.

If you have good spark, (bright blue not yellow), and timing it should fire off starting fluid. I always pull cap and rotor and look for condensation and clean, on any motor that has sat and not started.

Other things to check:

lost timing? broken timing chain? Crossed spark plug wires? Engine grounding cables?
 
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