Rotor button removal

JasonNC

I've developed a miss in my 262 that the Pertronix tech rep tells me may be due to the round disc having lost a magnet.  He suggested I take the disc out, turn it a few notches, and put it back on.  If the miss moves to another cylinder, then it needs to be replaced.  The problem is I can't get the rotor button off the distributor shaft.  I thought that it just set down on the shaft and would be easy to just lift off.  No such luck.  Is there a set screw that holds it on that I've forgotten about?  Any help will be greatly appreciated.  

JasonNC

I took a screwdriver and pried on it for a little bit. It eventually came off but it acted like it had been lightly glued on the shaft.  I guess it got hot and thus made it difficult to remove....