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2 balance shafts?

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    #1

    2 balance shafts?

    so im doing a whole timing belt and seal change and other stuff, but isn't there 2 balance shafts so i would need 2 balance shaft seals and retainers?
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    #2
    Originally posted by theone&only View Post
    so im doing a whole timing belt and seal change and other stuff, but isn't there 2 balance shafts so i would need 2 balance shaft seals and retainers?
    Yes there are two balance shafts, they spin opposite directions of each other to cancel their own vibrations, and they spin at twice the speed of the engine to cancel out the secondary vibrations caused by the unbalancedness of inline 4's in general. Yay Mitsubishi for inventing them...

    The most common reason they are deleted, is for engines that rev higher then they are normally rated for, since they spin at twice the speed of the engine, when your doing 6k rpm's, their already spinning at 12k, plus when bypassed they relieve the engine of the work to spin them up and down, thus freeing up a few hp that would normally be used to spin them.
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      #3
      Originally posted by theone&only View Post
      so im doing a whole timing belt and seal change and other stuff, but isn't there 2 balance shafts so i would need 2 balance shaft seals and retainers?
      You can see the front balance shaft on the left, and the wheel that turns the back balance shaft is on the right. It's hidden behind that wheel.

      Originally posted by Mishakol129
      Do not disrespect my intelligence. I am the smartest person I know : )

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        #4
        Originally posted by theone&only View Post
        but isn't there 2 balance shafts so i would need 2 balance shaft seals and retainers?
        Only the front balance shaft needs the seal an retainer.
        So you only need 1 seal and 1 retainer


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          #5
          Originally posted by evil_demon_01 View Post
          Only the front balance shaft needs the seal an retainer.
          So you only need 1 seal and 1 retainer
          okay thanks

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            #6
            Originally posted by cloudasc View Post
            Yes there are two balance shafts, they spin opposite directions of each other to cancel their own vibrations, and they spin at twice the speed of the engine to cancel out the secondary vibrations caused by the unbalancedness of inline 4's in general. Yay Mitsubishi for inventing them...

            The most common reason they are deleted, is for engines that rev higher then they are normally rated for, since they spin at twice the speed of the engine, when your doing 6k rpm's, their already spinning at 12k, plus when bypassed they relieve the engine of the work to spin them up and down, thus freeing up a few hp that would normally be used to spin them.
            so when people do balance shaft deletes they remove both or just one?

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