[Tigers] Distributor Rotors

[Buck Trippel]

Dan Walters discovered a strange parts problem that might effect any of us.

When trying to trace an engine misfire, we about to replace a rotor when Dan
noticed that the two looked different. He ended up chucking a rod the sized of
a distributor shaft into the lathe and placed the black rotor on it. It fit
snugly. Then he moved a cutting tool so that it just made contact with the
tool.
(you can see pictures on CAT Forum
http://www.catmbr.org/VB_forum/showthread.php?p=310#post310 )

Later he removed the first rotor and inserted a blue one. He did not move the
tool but there was a large gap between the tip of the rotor and the tool. The
gap measured .084".

Has anyone else noticed variations in rotor sizes supplied for Ford
distributors?