Hi folks, I have a 292 thats giving me a sore head.I only imported the vehicle into New Zealand in November, after filling up the gas it was running well, ticking over, starting nice,good oil pressure,absolutely no smoke even under hard acceleration. Then it got a gas leak in the tank, I drained and fixed the tank, put new fuel lines and fuel pump on and an inline filter,cleaned out carburettor, new coil,plugs,points,leads,rotor, it started up well and ran well, took it around the block and running brilliant came back to my house,up a steep drive, stopped it, restarted it then it cut out and the only way to get it going again is to drain out carburettor,blow out jets,take out over fueled plugs, then it starts and looks like its never going to stop, go on a 10 minute drive,come back, same thing happens again, this has happenned about 5 times now, when its running doesnt look rich and idles, stops and starts again good, hardly any turn of the starter motor and runs as if theres no tomorrow. Admittedly I havent checked the timing yet or done the rocker adjustment - but when its running it runs so good it doesnt seem to need anything. Have changed oil etc The starters a bit worn and it throws out as soon as it attempts to fire so thats a problem too - any ideas folks ?

 

What comes to my mind is an incorrect float level. Or maybe the float needle isnt seating well.

 

Hi,thankyou very much for your reply, I've only just started looking at this site and its a wealth of information. I have had a bit of trouble with the float needle, when you push the clip down to secure the float the floats up and down movement is a bit stiff through the needle, maybe its a bent brass axle ?, and I've changed the float level alot as well but its back to factory set-up now..Could I ask you though, why does this influence your answer, is it because its flooding the carburettor ? Thanks, Craig.

 

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I'm with 46Y. After you start it, you are using fuel, and the float is lowering and raising(continuously moving) ... as you go down the road. Pull up in the drive, shut it off, the float is supposed to stay at one position. The residual fuel pressure in the system could leak past a float that was working well enough to be able to drive. The fuel dumps into the intake, and fouls the plugs. Either a binding rod or needle, or the seat could be worn. Some engines will literally pour fuel out the vent onto the intake at idle or after they are shut off if the float valve is leaky.
tom

 

I agree w/ A & B...and less likely, but possible, C- a dented or leaking float. You mentioned that when you fixed the tank & did the other work, you cleaned out the carb. All sorts of funny things can happen there....I've seen carb cleaner strip off varnish/crud that was sealing an old float. All of a sudden your rebuild takes a step backward.

That kind of stuff is the reason for my signature.

 

Hi, thanks alot to everyone for their advice, its hard to go down to a carshop in New Zealand and talk about V8's littleown Y-blocks. OK I set the float correct (.465 at low point ), checked spark at plugs, good blue spark, tried cranking it over - nothing. Took out float,blew out jets,blew out accelerator discharge ( making sure the ball bearing didnt blow out ) tried cranking it over - nothing. Checked spark again at points - nothing ? Turned it over a few times -checked spark at points - good spark !tried cranking it and it started straight away, took it for a drive - brilliant, came back and I've started and restarted it hot and cold all day, so its going good at the moment - not sure why at one point there was no spark at points - maybe I'll try a new condensor - god bless america ( and its cars ) Regards, Craig

 

Craig, it sounds like to are running this problem down as well as a lot of us could. While you are working on the condensor examine the primary wire for cracks or other problems. Look also at cap for crack or indications that it and rotor needs replaced.

 

Once driving down the 8-laned Dan Ryan expressway in Chicago, I had the engine just flat stop. Wow. Talk about changing lanes quickly! The pigtail that entered the side of the distributor decided that was a good time to flex its last. No spark. Cars whizzing by at 65 mph a few feet from my back side. Figured it out, stripped the wire and connected to the points, drove home with a new respect for guys that work on cars at the side of the road. ... Whew!
tom

 

Not only were you able to fix it on the spot, you had the necessary tools on board to correct the situation. Great job.

 

That Loadomatic dizzy is notorious for a wire wearing off the insulation and shorting under and to the breaker plate. It happend to me on I-93 coming thru Boston during rush hour in my flatty powered 53 Vicky.
After about a half hour of fiddling to localize the damn intermittent the rush hour fix was unwrapping some electrical tape from around some other poorly insulated wires and forcing in thru the hole