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Thread: motor pops through the exhaust

  1. #1
    Junior Member APPRENTICE
    Join Date
    Feb 2007
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    16

    motor pops through the exhaust

    trying to time my motor ,but it kee4ps popping through the exhaust.
    big block ford 460,any help would be appreciated

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Nov 2004
    Location
    Port Sulphur, La.
    Posts
    139

    timing

    If You think the timing is close, 1st thing I would do is compression check it to see if anything is funny in the valve train. 8)

  3. #3
    Junior Member APPRENTICE
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    Feb 2007
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    16
    i got 220lbs of cylinder pressure

  4. #4
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2007
    Location
    Orient, OH
    Posts
    384
    220 lbs on all 8 cyl??? I would pop the valve covers off and see if any rockers are loose to indicate a prob with cam or lifters.

    My 468 chevy was popping through the exhaust, I took the valve cover off and found about a quarter of an inch valve lash. This was the result of a broken lifter that wiped the cam lobe...
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

    http://static.racingjunk.com/63/ui/7...247837-479.jpg

    http://www.racingjunk.com/profile/211708

  5. #5
    Junior Member APPRENTICE
    Join Date
    Feb 2007
    Posts
    16
    hey josh everything was fine in the valve train, it wound up being my cap & rotor. thanks for your input.


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