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My K5 is dieseling when I shut it off.

Discussion in 'The Garage' started by badmix, Jan 27, 2007.

  1. badmix

    badmix 1/2 ton status

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    Its a 305cid w/ 120k on it. It seems to have started when I was monkeying with the carb. But b4 I do anything, I wanna check here and see what ya'll think or recommend. I dont wanna be chasing my tail on this.

    1) Could carb cause this? If so, why? And what adjustments should I make , go lean or go rich?

    2) Could it be a fluke that it does it when I adj. carb and it is really something else, like timing?

    3) If it is timing what is the correct timing for this?

    I appreciate any advice, suggestions, help or comments. :D
     
  2. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    When you were "monkeying" with the carb, did you bump up the idle? Too high of an idle causes run-on.......
     
  3. Leper

    Leper 1/2 ton status

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    If it started right after you messed with the carb, go un-mess what you just did.
     
  4. resurrected_jimmy

    resurrected_jimmy 1/2 ton status

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    Dieseling can be caused by the engine running too hot. Messing with the carb could definitely cause this if you have gone to a lean condition. Carb adjustment in conjunction with checking your timing would probably cure it.

    Something that may be helpful to others posting is if you tell us why you were messing with the carb to begin with
     
  5. badmix

    badmix 1/2 ton status

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    I was messing with it when I went up to WV this xmas time. The air temps and altitude made the truck run bad. So I monkeyed with it to get it run good up there and then when I got back here I re-monkeyed with it. lol. I used the vacuum gauge approach to adjusting the carb. I guess I need to take my time and monkey some more with it. lol.
     

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