Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor
Smokey idle, and surging at cruise speed.
Cliff Ruggles:
The bowl can syphon dry if you are missing a pair of upper idle airbleeds.
I have ran into a couple of bad castings that leaked down as they were defective internally, but that is very, very rare and would show up if you filled the fuel bowl with fuel on the bench with the needle sitting in the seat......Cliff
Mudsport96:
Have it apart right now, and found FUEL in the idle air bypass chambers on each side of the primaries. And when I pulled the pcv hose off there was gasoline dribbling out of that port too. I will try the thick gasket that came in your kit to see if that helps. Unfortunately I can't seem to get my pictures small enough to fit in the post so I'll work on that as well
Mudsport96:
Still cant get picts to post, but, I got the idle a little better. Took it for a 30 mile drive today after putting the thicker airhorn gasket on the carb. Had zero problems the first 15 miles no surging, and zero problems until i got back to town and stood on it to ooen the secondaries. Wound it through first, and for to the too of second gear and she started fumbling and stumbling. And wanted to doe if I let off all the way, so I kept it half throttle till it cleared up and then stood on it and she pulled to 5000 in high gear.
Got home and pulled the pcv hose off the base plate and had fuel in it again. And fuel in the side chambers where the bypass air flows through.
I'm about ready to get a rebuild kit for the old 1901that was on the car before, even with the base plate needing bushed she didn't have these problems haha. I'm betting the bodies warped on this one. I didn't have a good straight edge when I did this carb build.
Thoughts?
Mudsport96:
Mudsport96:
Ha, got them. As you can see. Remnants of fuel, where fuel shouldn't be.
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