Crazy negative compression cam?

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  • ChicagoRob

    #1

    Crazy negative compression cam?

    I ebay'd a used head that came complete. (Cams, buckets, shims, everything.) After cleaning it up and installing it I got vacuum instead of compression! I was perfect on the timing marks, but no compression. It was driving me nuts.

    Then I decided to compare the new cams with the old and here is what I found




    Bad new is on the left. The gear with the timing mark was 180 degrees off.

    Ever seen such a thing before?

    Rob
  • Guest

    #2
    Are you sure that the head that you bought had the cam sprockets on the proper cams? or was it just installed 180 out?

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    • TeamDar
      Forum Sage
      Past Site Supporter
      • Nov 2008
      • 1137
      • St. Louis, MO

      #3
      It didn't come from Suzuki that way. That would be the P.O.

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      • ChicagoRob

        #4
        Originally posted by TeamDar
        It didn't come from Suzuki that way. That would be the P.O.

        Yeah, I think that you're right. The bolts that held the gear on were loose. I have no idea why anyone would take that off, though.

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        • Guest

          #5
          Cam sprockets are off 180.
          Just switch them around.
          I've done it

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          • AJ

            #6
            It would've been funny if it weren't so much extra work!

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