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  1. P

    yet another ring design thread, hot vs cold forming

    The Trimble "hot" method for forming rings results in a ring with uniform contact and uniform wall pressure all the way around it when it is compressed into the cylinder, when the ring is not compressed into a cylinder it is not a perfect circle, if it were Trimble could have gotten away with...
  2. Lloyd-ss

    How to fit mismatched rings and piston and cyl bore??

    Hello everyone. New guy here eager to learn and willing to take some educated risks. I am collecting material and parts and pieces for a 52cc horizontal diesel with cross head. It is my first model engine build, but I am ready for the challenge and I hope I am up to the task. A lot of what needs...
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