Running rich SUs. I have rebuilt these carbs twice and still have trouble with running rich. The sad part is--- I think I am so smart when it comes to these cars. I am looking for a second opinion on what I could be missing. I got the kits from Joe. The engine in new with probably 3 hrs on it, and I believe everything is correct, timing, points ect…What I have not done is take the car out and drive it, so that it gets plenty of air. Most of what I have done is in garage. I have driven around the block a few times, but not on the open road, and when I get back from going around the block the plugs are carboned up.
I had my nephew who is a modern mechanic help me. We got it idling nice with clean plugs after a couple of attempts and when we lifted the piston pins the car would shut off like it was lean, so carefully moved the jets one flat at a time until it would idle ok (when lifting pins no raise up in idle trying to keep it on the lean side), but when I pulled the plugs it is back to rich carbon. He felt I needed to get it out of the garage and drive it and open it up to get air going through it.
Anyways my experience is these cars seem to run rich; I figured it is the quality of fuel today. Do others have this rich running problem especially on new motors?
The running rich is usually the choke with these cars and maybe I am over choking with this new tight motor on startup to keep it running and the carbon comes from that, and maybe if I got it out on the road with air moving through at like 3 or 4K the carbon would fall off. Any ideas? Does my theory sound right, maybe kinda sorta. I might just have to go for it, and if I break down--- deal with it. Can anyone help me push……
Steve
I had my nephew who is a modern mechanic help me. We got it idling nice with clean plugs after a couple of attempts and when we lifted the piston pins the car would shut off like it was lean, so carefully moved the jets one flat at a time until it would idle ok (when lifting pins no raise up in idle trying to keep it on the lean side), but when I pulled the plugs it is back to rich carbon. He felt I needed to get it out of the garage and drive it and open it up to get air going through it.
Anyways my experience is these cars seem to run rich; I figured it is the quality of fuel today. Do others have this rich running problem especially on new motors?
The running rich is usually the choke with these cars and maybe I am over choking with this new tight motor on startup to keep it running and the carbon comes from that, and maybe if I got it out on the road with air moving through at like 3 or 4K the carbon would fall off. Any ideas? Does my theory sound right, maybe kinda sorta. I might just have to go for it, and if I break down--- deal with it. Can anyone help me push……
Steve