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To determine lobe centerline, measure at 0.050 on either side of maximum lobe lift and take your readings from the degree wheel. The average of those numbers is your centerline. For example, if your readings are 60 degrees when the lifter is 0.050 before maxium lobe lift (A) and 148.5 degrees when the lifter has dropped 0.050-inch after maximum lift (B), then your centerline is at 104.25 degrees. View Related Article
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