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Thread: compression

  1. 10-29-2007, 12:19 PM #1
    thumper492
    thumper492 is offline Member
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    Question compression

    what should the compression be on a mxr90 before you rebuild it any help would be great thanks
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  2. 10-29-2007, 05:00 PM #2
    hookedonpain
    hookedonpain is offline Junior Member
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    compression

    I believe it to be 165 psi.,that is what ours was just after we bought it,and just after our rebuild.Be careful though,I got that reading and two days later the skirts were cracked off the piston,in other words this may not be a true indication of what is going on below the rings.
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  3. 10-30-2007, 08:05 AM #3
    thumper492
    thumper492 is offline Member
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    thanks for the help
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