Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

17056228 First Test

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blazer74:
Also, Do you Have any 48k rods laying around for my 17057204   carb,  52k too much with 77 jets. I have to turn apt way out past spring tension  to get rid of hesitation and to get tip in correct.

Thanks Craig

blazer74:
OK, found i had nozzle drip on passenger side,  turning in mix screw stopped it but makes mix to lean. Swapped from ported to full vacuum, backed out idle screw and readjusted mix to 4.5 turns out. Smooth idle no drip. Good news, but there's always a twist.  If the truck sits after about 15 minutes after running it will not start unless pedal held wide open.   Pumping pedal doesn't work, Swell.

Craig

Cliff Ruggles:
I'll have to look for 48K metering rods, might have some used ones in spare parts?  I don't use they "K" series rods as they limit the control with the APT within a .005" range.....Cliff

blazer74:
Hello, been messing with this carb off and on  and still not right. currently have 72/44 combo, apt 4.5 turns, mix turns 5.  Getting nozzle drip on the passenger side at low step of fast idle cam  , getting black smoke when stabbing throttle and tailpipes lightly sooty. passenger side likes about a turn less on the mix for same result as other side. And slight hesitation off idle. I believe the nozzle drip is causing stumble of Idle. Otherwise runs good. Suggestions?  Had nozzle drip prior on passenger side and went to straigt vac to distributer and back out idle screw, thougt I cured it but.

Thanks Craig

Cliff Ruggles:
Check to see if the throttle plate on that side is open further, or not seated as well as the other side.....Cliff

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