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Bad plug, anyone see this before?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by jimmy88, Sep 2, 2002.

  1. jimmy88

    jimmy88 1/2 ton status

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    click on bad plug

    Here is a pic of the #6 plug. All the others are ok. It only has about 1000 miles on it. I can't figure out how that can happen in such a short time and the motor still runs ok. The plug that came out before this one was the same way, don't know how long it was in. Wonder what the piston and the combustion chamber look like!! Anybody see this before? Motor doesn't knock, it uses a little oil and does have a coolant leak, did the bars stop leak to get me through the summer.

    PS is there a way to link to the new gallery that doesn't give the register screen?
     
  2. 79Beast

    79Beast 1/2 ton status

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    I think you found your coolant leak. Try replacing the head gaskets. When you do, check the valves on that cylinder and make sure the heads are not warped.
     

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