Crankshaft needle bearing race Mark WT..hell ? Urgent.

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  • c&c
    • Feb 2026

    #1

    Crankshaft needle bearing race Mark WT..hell ? Urgent.

    it is located inside the race and every time a needle bearing passes over it it thumps.
    It is located beside the oiling hole on top.
    Its the exact same width as a needle.
    When the engine is upside down you feel it when you turn the crank.
    I doubt you feel it when the right side up because of the crank weight.

    Is this mark normal?

    DSC_0147.jpg
  • TeamDar
    Forum Sage
    Past Site Supporter
    • Nov 2008
    • 1137
    • St. Louis, MO

    #2
    It is NOT normal. It is called Brinelling. It will fail very soon if you try to use it. Find a different crank or send that one to Pearson Racing for rebuild.

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