Just Answer Just Answer
Ask A Question  -  Help  -  Register  -  Login   

Ask Your Car Question. Car Experts Answer You ASAP
(Not a Car Question?)

Question

start fuel air


Sent to Car Experts September 21, 2005 10:38 a.m.
I have a 2 barrel CM rochester carburetor and would like to know how many turns of the air and fuel screws (as a start) I should go when tuning the carb.
Customer (name blocked for privacy)
Status: Closed   Value: $10   
Answer
September 21, 2005 10:54 a.m. (15 minutes and 48 seconds later) 		REPLIED Check Mark
there are many rochester carbs i start at 1 1/2 turns and adjust from there
Dan  -- Auto Service Technician -- 97% Positive Feedback on 159 Car Accepts
master tech
Reply to Dan
Sent September 21, 2005 11:58 a.m. (1 hour and 3 minutes later)
should both screws be turned to 1 1/2? If so which should I adjust first and how far?
Customer (name blocked for privacy)
Answer
September 21, 2005 12:03 p.m. (5 minutes and 44 seconds later) 		REPLIED Check Mark
set both out 1 1/2 turns out start car these only adjust idle mixture what year car? computer controlled?
Dan  -- Auto Service Technician -- 97% Positive Feedback on 159 Car Accepts
master tech
Reply to Dan
Sent September 21, 2005 12:06 p.m. (3 minutes and 8 seconds later)
its a 1965 C-20 pickup with a 283
Customer (name blocked for privacy)
Answer
September 21, 2005 12:13 p.m. (6 minutes and 33 seconds later) 		ACCEPTED Check Mark
wow really i just rebuilt eng and carb on a 65 impala same eng and carb turn it out 1 1/2 turns set idle and slowly turn both screws in or out same amout till best idle is acheived then turn each one in till each screw lowers rpm about 25 rpm so if you lightly put hand over carb it will slightly raise the rpm witch is richening it up slightly they run best at idle just slightly lean
Dan  -- Auto Service Technician -- 97% Positive Feedback on 159 Car Accepts
master tech

Think you can answer this question?
 Login or  Become an Expert









DISCLAIMER: You acknowledge that any information you may obtain from individuals you contact through use of the Just Answer service comes from those individuals, not from Just Answer!, and that Just Answer is not in any way responsible for any of the information these third parties may supply. The site and services are provided "as is" with no warranty and no representations are made regarding the qualification of an Expert. Responses and comments on Just Answer! are for general information and are not intended to substitute for informed professional advice (such as medical, legal, investment or accounting) and do not establish a professional-client relationship. Just Answer! is not intended or designed to address EMERGENCY QUESTIONS which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service.
   Just Answer! > Car Repair
Question List - Become an Expert - Terms of Service - Security & Privacy - About Us
© 2008 Just Answer Corp.