Palmer YT-1 Cuno timer rotor sloppy

Author Message   narrabay2 Senior Member Username: narrabay2 Post Number: 266 Registered: 10-2019 Posted on Thursday, November 02, 2023 - 12:04 am:        I am doing a light resto on a friends YT (disassemble, media blast, paint, oil seals, check clearances, rings, adjust rod bearing clearance, lap the valves, etc). I noticed how much slop there is the the cuno timer rotor. The shaft is D-shaped and so is the thru hole on the rotor. My own YT is the same way. Has anyone tightened these somehow? I was thinking of machining something. Since it moves by like about 15 degrees, thats a lot of timing variability. https://youtu.be/NPqBhdD7D8A?si=4kWOfosvc-DYGVdA

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