I had posted to all a week or so ago that my L69 5.0 H.O. Carb wouldn't start after coming back from paint. Then it started once on a new battery, idled rough with smoke and wouldn't turn over again.

So today, I spent 3 hours changing spark plugs (PITA BTW) with brand new spark plug wires. After changing all of them gaping them .035 (Champion Copper) with Duralast wires, I put the key in and....WALLAH the engine comes roaring to life, sounds better then it ever did, and ran until it was doing the high RPM idle telling you its all warmed up and ready to go. A bunch of smoke came out at first as always, but cleared up and I let it run 5 minutes. Excited by this, I get in the car to move it 6 feet (all I'm trying to do before winter), hit the gas pedal, and the thing dies.

So I turn the key, get a slow turn, then it starts turning but won't start. I hit the gas pedal twice and she came back to life. It ran for about 4 seconds and then BOOM!!!!!!!!!!!! I hear a loud bang from under the hood and see a small amount of smoke coming from under the air filter. Tried starting it again and no go. Just turns over and over and over without firing.

I have a new distributor cap and rotor I have not put in yet, but will do tomorrow. My mechanic said the boom I heard was gas burning in the carb and my rotor may be bad and not providing enough spark to keep it running off the choke.

I guess I'm seeing if anyone else has any input or has experienced this problem. I obviously have fuel and spark, am I missing something else here?

 

I almost forgot to add, the check engine light came on while it was running, went off, and came back on during the second start. When the key is in the on position, it won't disappear now. Also the little plastic ring around the ignition coil where the factory spark plug wires go that has the cylinder numbers doesn't fit with the new plug wires. I don't think this makes a difference, but am not sure.