Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Q-jet Problemo. Flooding?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by pontiacratrod, May 4, 2007.

  1. pontiacratrod

    pontiacratrod Registered Member

    Joined:
    Dec 8, 2006
    Posts:
    14
    Likes Received:
    0
    Location:
    palatine, IL
    I Just Rebuilt A '78 Q-jet And Put It On My Truck And Now It Idles Really Rough At Low Rpm's, Smooths Out Nice At Higher Rpm's But When I Put It In Gear It Dies Instantly. The Other Thing I Noticed Is That Light Smoke Is Coming Out Of The Carb Air Horn After Its Shut Off. Ive Seen This Before On Emissions Carbs But It Usually Goes Away After A Couple Seconds. On My Truck However, I Think I Stopped Counting At Twenty Minutes Before It Finally Stopped. Lastly When I First Pulled The Carb Off To Rebuild It, I Was Confused By The Fact That There Wasnt Any Gas In The Bowl. I Would Appreciate It If Anyone Would Throw Their Two Cents In...
    Thanks
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

    Joined:
    Jul 22, 2001
    Posts:
    16,217
    Likes Received:
    1
    Location:
    Mesa , Arizona USA
    I would say it needs to be opened up again , and triple checked as you put it back together .

    Foreign matter or something bent could interfere with the rods doing their thing into the jets .

    Are the well plugs epoxied ? They are known to leak fuel into the intake .
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,979
    Likes Received:
    189
    Location:
    Roy WA
    Do a good visual inspection. Be especially concerned with vacuum problems.
     

Share This Page