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Old 01-13-2022, 04:06 AM   #1
ellisjay2
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Join Date: Feb 2014
Location: marietta ga
Posts: 147
Carb fuel delivery problem holley 4150 do....

I'm having fuel delivery problem with carb. I did a deep cleaning, soak, cleaned out passages, new gaskets etc. Problem now is fuel is only spraying out secondary nozzle size (28) which is what it was before, but it only sprays when I push down with finger on gas pump arm, I've already moved linkage cam to the number one position and it still doesnt lift linkage enough, Im thinking check diaphragm, but I put back same size as before, kit did come with one extra alittle thinner. And before changing cam size my question is why would anything change if all went back the way it was???


As far as primary spray nozzle, no fuel is squirting, and I cleaned metering block and passages good. For some reason it's not making it through. I e adjusted both float bowls to proper levels.........

Something about security token won't let me post pics...so irritating...
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: Eli540

86 gmc 2500 longbed Carb 5.7, rwd,
400 tranny.
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