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Cursor 9L Engine 8097812R

Failure Mode:

    • Head Gasket Leaks

Root Cause:

      • Top deck surface finish was to rough or smooth along with potential peaks and valleys that were out of spec
      • Improper RA or RZ surface finish specs and measuring methods


      • Updated profilometer that measure both RA and RZ
      • Increased measurement area
    Curson 9L surface finish- Before

    Engine Surface Finish – BEFORE

    Cursor 9L engine surface finish photo - After

    Engine Surface Finish – AFTER

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