General Category > Quadrajet Carb Talk and Tips

q jet 17059253 re purposed to boat carb...

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powell rat:
so i rebuilt this carband added .090 bypass air on both sides opened up the idle tubes to .036 idle  mixture screws 3.5 turns out. i did not open up the idle mixture holes to .090.i am experiencing nozzle drip. i am assuming that i probably should open up the idle mixture holes to the book prescribed .090 and tune from that point . do you think the carb has enough bypass air? thanks in advance for your reply     

Cliff Ruggles:
Keep in mind the 79 Old's carb uses metric pitch threaded mixture screws, and tiny holes under them.

3.5 turns out isn't very far, most end up 5-6 turns out, and usually need slightly larger holes under them.....Cliff

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