Bad knock from worn rod bearing?

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  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #16
    Originally posted by LJ851
    ^ your mic is not accurate enough. You need one that reads in .0001 inches or metric equivalent. Measure each journal at 4 positions: left side of journal 12o clock to 6o clock, and then 3o clock to 9o clock. do the same on the right side of the journal. You want to find out if the journal is oval or tapered. I wouldn't run it if it has more than .0003- .0004 inches of either.
    Correct! In addition to checking for out of round or taper you need to precisely know the journal dameters in order to pick the bearings by color code. Tenth reading micrometers are essential.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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