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Thread: blow by 66 Wildcat 425

  1. #1

    blow by 66 Wildcat 425

    Hi there,

    There's some blow by out of the drivers' side breather on top of the valve cover. A little bit of oil is coming out too when the engine is reving.

    Is this serious? What does it say? Are the valve seals worn?

    Thanks,


    Jake

  2. #2
    Join Date
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    If you have alot of blowby with oil most of the time it's worn or broken piston rings.. time to do a cylinder compression test ( a dry and a wet test ) to find out for sure. HTH

  3. #3

    Thanks!

    thanks! I will try that
    Jake

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