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.

hard to start when warm

Discussion in 'The Garage' started by tarheel, Apr 26, 2004.

  1. tarheel

    tarheel Registered Member

    Joined:
    Apr 11, 2003
    Posts:
    65
    Likes Received:
    0
    Location:
    GA
    hey guys. i did a search but couldn't come up with anything useful. /forums/images/graemlins/crazy.gif any how, my bone stock 350 starts great when it is cool even in cold weather, but it takes a few trys before it will start if the engine is still warm/hot. i'm runnin' a 4mv quadrajet. could it be a problem w/ the choke? HELP!!! /forums/images/graemlins/ears.gif
     
  2. ramjet gmc

    ramjet gmc CK5 Staff Staff Member Moderator GMOTM Winner

    Joined:
    Dec 19, 2001
    Posts:
    3,370
    Likes Received:
    0
    Location:
    Milltown NJ 08850 NJ sucks
    is it a will not turn over or will not fire type of thing /forums/images/graemlins/dunno.gif
     
  3. bigyellowjimmy

    bigyellowjimmy 1/2 ton status

    Joined:
    Jan 15, 2004
    Posts:
    2,105
    Likes Received:
    0
    Location:
    Chandler, AZ
    Is the choke on when warm?
     
  4. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

    Joined:
    Aug 28, 2002
    Posts:
    9,097
    Likes Received:
    144
    Location:
    california
    [ QUOTE ]
    is it a will not turn over or will not fire type of thing /forums/images/graemlins/dunno.gif

    [/ QUOTE ]
    Ditto. /forums/images/graemlins/thinking.gif
     
  5. 79Beast

    79Beast 1/2 ton status

    Joined:
    Dec 9, 2001
    Posts:
    1,155
    Likes Received:
    0
    Location:
    Georgia
    I agree...is it hard to turn over when warm? I would definatley check the timing. We really need to know if its spinning over fast and not catching or if its just spinning over slowly.
     
  6. tarheel

    tarheel Registered Member

    Joined:
    Apr 11, 2003
    Posts:
    65
    Likes Received:
    0
    Location:
    GA
    SORRY... ITS TURNING, BUT IT WONT CRANK. STARTER IS WORKING LIKE A CHAMP, BUT THE DAD GUM ENGINE WONT FIRE UNLESS I FLOOR IT AND THEN ONLY AFTER 2-3 SECONDS OF TURNING. AFTER IT DOES START, IT BILLOWS SMOKR FROM THE TAILPIPE AND RUNS ROUGH LIKE IT IS ALMOST FLOODED. WTF!!!??? /forums/images/graemlins/confused.gif
     
  7. tarheel

    tarheel Registered Member

    Joined:
    Apr 11, 2003
    Posts:
    65
    Likes Received:
    0
    Location:
    GA
    OH YEAH... I ALREADY ADJUSTED THE TIMING AND PUT NEW SPARK PLUGS IN. STILL DOIN' IT. /forums/images/graemlins/thinking.gif
     
  8. bigyellowjimmy

    bigyellowjimmy 1/2 ton status

    Joined:
    Jan 15, 2004
    Posts:
    2,105
    Likes Received:
    0
    Location:
    Chandler, AZ
    IS THE CHOKE ON WHEN THE ENGINE IS AT OPERATING TEMPS? /forums/images/graemlins/thinking.gif
     
  9. Blue85

    Blue85 Troll Premium Member

    Joined:
    Jul 26, 2000
    Posts:
    9,086
    Likes Received:
    487
    Location:
    Grand Rapids area
    Mine does kind of the same thing. If it sits for like 45 minutes, it doesn't want to start and when it does, it blows a puff of black. If it sits a long time or a really short time, everything is fine.

    I think it has to be one of two things:
    1) The choke wants to engage because the carb has cooled, but the engine is still warm
    2) The engine heat makes some gas spill over into the intake while it sits. If I waited longer, it would evaporate. I have been meaning to look in the carb sometime while it sits hot.
     
  10. shane74

    shane74 1/2 ton status

    Joined:
    Feb 12, 2002
    Posts:
    4,100
    Likes Received:
    0
    Location:
    Vancouver, WA
    I had that problem in a couple trucks. Both times it was the starter getting too hot to spin fast enough. One on truck I had manifolds w/ duals. On the other it was headers with duals. On both rigs, I had to wrap the starter in the heat sheild stuff. After that, they worked like a champ. May not be the case here, but that is what it was for me.

    On this blazer, when I had the exhaust put in, I asked him to run it as close to the frame and as far away from the starter as possible. No issues with this one.
     
  11. diesel4me

    diesel4me 1 ton status Premium Member

    Joined:
    Jul 24, 2003
    Posts:
    17,568
    Likes Received:
    943
    Location:
    Massachussetts
    It could be that the carb has leaky metering wells,allowing fuel to drain into the intake.They had a kit to fix that problem years ago,a little foam dewhickey you stuffed under the bottom of the carb.I think you can use epoxy too.There is probably some info on how to do this on this site somewhere. /forums/images/graemlins/grin.gif
     

Share This Page