Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem
Rich idle
kenn:
Thanks Cliff
kenn:
Hello I have been fighting this thing to the point of despair.
The carb seems to run fine now after I get the engine warmed up but I have to nurse it there.
After it sits over night there is no pump shot ?
Now I have checked and double checked the obvious things that I have learned from reading this sights posts and I am no dummy but this is the last hope before I break down and by a new carb which I don't want to do.
Float level is .25 , Cliffs ACC cup and the ball does not drain down after two days when the carb is apart.
429bbf:
i think you have a fuel delivery problem . easy way to check this. get an electric fuel pump . napa sells them for about 40.00. also get (if you dont have these parts )a fitting to screw into the carb. 5/16 0r 3/8 hose to 3/8 inverted flare thats the carb fuel line thread. put a couple of wires on the pump to reach the batt. get a bucket of fuel (quart ,gallon whatever you have and hook it right to the carb. turn it on for 30 seconds and try fire it up . this will help you fiqure out whats wrong. maybe a bad fuel pump something in the line . its anybodys guess .fwiw
kenn:
Thanks for reply
I will check fuel delivery system.
429bbf:
one other thing you might try. they make a fuel filter that goes right in the carb that has a check valve.its exactly like the one in the carb except it has a check valve this would help determine if you have a bleed back problem.(ex no vent on the gas tank, restricted fuel line all kinds of stupid little things
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