I just got my car to run long enough to make enough adjustments so it will run on without someone's foot on the gas and took it out last night for the first time in years. Upon returning home I had a super cool neon like glow on the ground . I popped the hood and was shocked to see the reddest header I've ever seen in my life! I've had this happen on newer cars and usually just "replace" the catalytic converter, but my Chevy doesn't have one. It's barely got mufflers. Do you guys think it could be the driver side muffler backed up. I appreciate the help!
1. THe ignition timing is waaaaaaay to advanced. 2. The fuel curve us waaaaaaay lean. Equal: Glowing Red Headers
Sounds like a timing problem to me. They were red hot on both sides or just the driver's side? Opps a little slow on the draw again.
It was just the drivers side. Sadly I'm a body man, I'm not really good at engine work. If I back off the idle screw a bit should that help? I couldn't even begin to adjust timing, other than turning the Dist. a bit anyway.
If it was just the drivers side I might think it is some other problem other than timing. Turning the distributer is what I had in mind for that. But... Tell us a little more about the mill. Carb intake, new or old motor. It will probably be just a dialing in thing, hopefully.
[ QUOTE ] 1. THe ignition timing is waaaaaaay to advanced. 2. The fuel curve us waaaaaaay lean. Equal: Glowing Red Headers [/ QUOTE ] I second that diagnosis. A blocked header would just stop the motor running.
It's just a '72 Chevy 350. it was rebuilt about 6 years ago and then I put it in my '53 about three years ago it ran great then the car sat for about two years. It's pretty well stock 750 carb and headers are really the only thing that have been added. It still stalls hard when put in to gear but I can gas/brake it till it warms up and it will run ok at that point. Fine tuning is not my thing, I really appreciate all the help for the new guy!
<font color="green">Just the drivers side.... Do you have a single or dual plane intake? May need to adjust the rockers on that side. Are you sure you have matched heads? RASHY </font>
1. If you have to Gas/Brake it to keep it running, the emulsion curcuit in the carb is to lean, OR the choke does'nt work! 2. It IS VERY possible to have one side of the Holley Carb block in the primary curuit, I've had this happen on our race cars in the past. AHotRod
Ya might look for a va***m leak. Get some WD40 and spray it all around on the intake and carb when the car is idleing. If you have a leak it will rev up when you hit it. You might also take a look at the fireing order/plug wires and make sure you don't have one crossed. The order is 18436572. Start with the #1 plug wire and work you way around, clockwise. Headers will glow and sparkle a little especially when your keeping your revs up and not moveing very fast. Red Hot is a problem but a mild glow is no biggy.
Holly Carb block! I can't afford one of them fancy Holly carbs! The only adjustment screw on this thing literally puts pressure on the throttel to open the carb up. Just like if my foot was on my pedal! I'll check the timing and it has an electric choke. I think I should have also mentioned that I've had the thing running prior to adjusting the idle screw and this didn't happen. I'm deffintly going to check for va*** leaks with WD40 I've seen people use starting fluid for that and it always looked like a bad plan!
Retarded ignition will make them hot too. I had a manifold cherry red just running around the block, found the timing 20º retarded somehow, (this was when I still usta chain-drink beers and put stuff together..) set it where it was sposedta be and it cooled off imeiately and cured the have to keep a foot on the throttle problem at the same time.
would seem to me with a dual plane intake one wouldnt have just one header glowing red. perhaps a couple of tubes on one header and a couple on the other would indicate a problem with the carb on one circuit or the other. how long did it sit? what kind of header? or does it have exh. manifolds with a heat riser? perhaps the riser is siezed if it has one, makeing that manifold getvery hot. no riser, steel tube header? perhaps a mouse has built a nest up inside the exhaust on that side and clogged the pipe/muffler just some other things to check out, been there seen that bob g
It sat for a little over two years. The other side doesn't even get a little red. It's a steel tube header. I'm going to look into it as soon as I get out of work and the bar tonight. I'm trying to make it to the Detroit cruise tonight and would rather take the Chevy. The truck just aint cool.
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