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crankshaft pulley

  1. Please Help, lost two crank pulley's

    Engine Repair, Diagnostics & Rebuilding
    I've done practice this morning and on lap 6 or so I heard a hell of a noise, this was my first crank pulley coming loose. This engine has done a few races already so it can't be something that could happen cause of bad assembly. The marshals later showed me the pulley and it looked like it...