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what is wrong with this??????

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by mudhog, Mar 1, 2002.

  1. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    can anyone tell me what is wrong with this and yes it was in a running 350 (not mine) <a target="_blank" href=http://community.webshots.com/photo/11220173/32156055nkHkYXUuKS> bad plug</a>

    wheeling pics
     
  2. denver75k5

    denver75k5 1/2 ton status

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  3. fortcollinsram

    fortcollinsram 1/2 ton status

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    It looks like he might be burning a bit of oil...what do the other plugs look like?


    Chris

    Was that a speed bump? No, just a Rice Rocket </font color=red> <a target="_blank" href=http://coloradok5.com/gallery/fortcollinsram>My 87 Blazer</a>
     
  4. muddin4fun

    muddin4fun 3/4 ton status

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    Carbon is usually what builds up like that, isn't it?

    <font color=red>Stupid people shouldn't tell other stupid people how not to be stupid</font color=red>
    <a target="_blank" href=http://www.bluefox.tv/~lara>My Wonderful Site</a>
     
  5. Ddragggon

    Ddragggon 1/2 ton status

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    .... and people wonder why I drop the 99 cents/ea, and buy new plugs once a year....

    -Rich

    My truck isn't ugly, you have a skewed sense of beauty

    <font color=blue>Its a Wheelbase Thing... You Wouldn't Understand</font color=blue>
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  6. 87GMC

    87GMC 1/2 ton status

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    Must big a big engine to fit that plus. Seriously, if it's white it is usually antifreeze.
     
  7. 87GMC

    87GMC 1/2 ton status

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    Must big a big engine to fit that plug. Seriously, if it's white it is usually antifreeze.
     
  8. shawnboy

    shawnboy 1/2 ton status

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    That's an ash deposit. Bad gas, fuel additives and oil as well would cause this.
    Shawnboy.

    <font color=red>If you are having too much fun it's probably illegal.</font color=red>
    <font color=red>Because I, Am, Canadian!!!</font color=red>
     
  9. fortcollinsram

    fortcollinsram 1/2 ton status

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    Okay...this is directly from the Haynes Manual in there "Common Spark Plug conditions" section in the back...

    The picture you have looks most like ash deposits...
    "Symptoms: Light brown deposits encrusted on the side or center electrodes or both. Derived from oil and/or fuel additives. Excessive amounts may mask spark, causing misfiring and hesitiation during acceleration"

    "Recommendation: If excessiv deposits accumulate over a short time or low mileage, install new valve guide seals to prevent seepage of oil into the combustion chamber. Also try changing gasoline brands."


    Chris


    Was that a speed bump? No, just a Rice Rocket </font color=red> <a target="_blank" href=http://coloradok5.com/gallery/fortcollinsram>My 87 Blazer</a>
     
  10. 83bowtyblazer

    83bowtyblazer 1/2 ton status

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    Ash deposits. I had the exact same thing with my truck. #3, 5 &amp; 7 cylinders. IT's cause by leaking valve guide/stem seals. Haynes says changing them will cure the problem. It also says low octane fuel may cause it too but they lean more towards the seals. Hope this helps.

    Ryan

    Never knock on DEATH's door. Ring the bell and run...he hates that!!!!
     
  11. calvin

    calvin 1/2 ton status

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    Ash is right on. Definetely not antifreeze or water. That looks like some took a steam cleaner to (in essence that's what happens)

    <a target="_blank" href=http://irocz.cz28.com>http://irocz.cz28.com</a>
    79' Chevy Custom Deluxe shortbed K10, 396 ,pics on site
     
  12. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    OK then Shannon now we get to guess what chamber it came from I say 8.[​IMG]

    <font color=blue> I'd rather have a bottle in front of me, than a frontal lobotomy!
     
  13. Hossbaby50

    Hossbaby50 3/4 ton status

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    #7

    My Chevy isn't broken, its just out of gas. <a target="_blank" href=http://coloradok5.com/gallery/albuo73>My K5</a>
     
  14. BurbinOR

    BurbinOR 3/4 ton status

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  15. mudhog

    mudhog THEGAME Staff Member Super Moderator

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    ok it came of a friend of mine's running 350 and the very back plug on both sides was like this lol i think it was time for a tune-up[​IMG]

    wheeling pics
     
  16. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    So me and Hossbaby were both right...[​IMG]

    <font color=blue> I'd rather have a bottle in front of me, than a frontal lobotomy!
     
  17. BurbinOR

    BurbinOR 3/4 ton status

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