Rebuilding Harley Davidson Flywheels
Mel 'The Dragon Man' Bernstein demonstrates the process of installing nickel alloy valve seats into Harley Davidson cylinder heads using a Sunnen Headmaster machine. He emphasizes the importance of custom fixtures, precise cutter setup for interference press fits, and the use of a pilot shaft that follows the valve guide for accuracy. The video highlights the durability of nickel alloy seats, especially for modern fuels with high alcohol content, and showcases specialized tools developed by Bernstein for this task.











