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Halllo,

i have a 914ul engine that have 373.2 hours (2007) on, with upgrading my pistons with a big bore kit from edgeperfomance.no. While cleaning and inspecting all the part before re-assemble the engine we found the 2 of the eight hydraulic lifters have small cracks on. if you take your finger nail and feel on top of the lifter U can feel it catching a crack. Is this normal on this on this amount of hours on the engine?

Regards,
Donald
  • Re: Hydraulic Lifters

    by » 8 years ago


    If it is a fracture then NO, Not Normal!

    Are you sure it is a fracture and not a casting seam?
    In either case, a photo would be helpful.

    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Clicking the "Thank You" is Always Appreciated by Everyone.


  • Re: Hydraulic Lifters

    by » 8 years ago


    The top of the lifter should be smooth.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


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