73 Comet 302ci Stock Carb Tuning Help

Discussion in 'Technical' started by Speed Mafia, Apr 28, 2010.

  1. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    You should make all timeing/carb adjustments with engine at operating temp (except the choke) Set the choke with the engine cold.
     
  2. Speed Mafia

    Speed Mafia Member

    Joined:
    Sep 24, 2009
    Messages:
    44
    Likes Received:
    0
    Trophy Points:
    0
    Speaking of the damn choke, hwo do I adjust that? I see you can loosen 3 screws and move it clock or counter clock and a screw? How do I tune it? It runs great wamed up but when its cold I can keep it running? Any
    thoughts
     
  3. justin has a 74

    justin has a 74 Maverick bandit official

    Joined:
    Sep 18, 2008
    Messages:
    3,758
    Likes Received:
    9
    Trophy Points:
    112
    Location:
    kentucky
    Vehicle:
    74 maverick /71 grabber /72 maverick
    cant remember but i think there is a black circle piece on the side where you connect the choke, you loosen the 3 screws and turn (not sure which way)
     
  4. Mavman72

    Mavman72 Gone backwards but lookin' forward

    Joined:
    Apr 24, 2007
    Messages:
    6,759
    Likes Received:
    272
    Trophy Points:
    273
    Location:
    Buffalo N.Y.
    Vehicle:
    1972 Maverick 2 door.Original V-8 3 spd std shift.Also a 72 one owner Sprint sporting a 351 Windsor
    The choke housing (black round thing) should have: R llllll L stamped on the top facing edge and a corresponding hash mark on the metal housing or it will say "Rich lllll Lean" on it. Turn it to the rich side one more hash mark than where it is now(after loosening the 3 set screws)Tighten set screws after making adjustment, and see if it functions well. The Bi-metallic spring in em wears out(looses it tension) with age/heat, and may need to be replaced if you cant get an adjustment that workes well. Set it cold (you may need to turn the fast idle up or down as well)...let the car run and warm up. Watch to see that the choke opens up as the car warms up.Once choke is opened, blip the throttle and make certain the fast idle pulls off and the low idle is as desired. Generally the choke is set 2 hash marks to the rich side from center on a new properly functioning set up. Good luck!!!
     
  5. diddie

    diddie Member

    Joined:
    Nov 20, 2009
    Messages:
    259
    Likes Received:
    0
    Trophy Points:
    75
    Location:
    indiana
    Vehicle:
    two 1977 Maverick 2drs.
    i'm sorry! i fogot i cant read :cry:
     
  6. Speed Mafia

    Speed Mafia Member

    Joined:
    Sep 24, 2009
    Messages:
    44
    Likes Received:
    0
    Trophy Points:
    0
    No edelbrock here
     
  7. baddad457

    baddad457 Member

    Joined:
    Feb 24, 2007
    Messages:
    5,861
    Likes Received:
    141
    Trophy Points:
    171
    Location:
    Opelousas La.
    And after setting the timing, you'll need to go back and tune the carb again. Always set the timing first, then tune the carb. Timing, then idle speed, then mixture, then idle speed again, if the mixture raises it to much. The stumble may(probly will) go away after advancing the timing. If it doesn't, take a look at the accellerator pump linakge and take out nearly all the slack. If all that doesn't work, you may need to add more pump volume or look at bigger squirters.
     

Share This Page