Sorry I dint get back sooner Tim, yard work comes first you know.
There are only about three standard diameter woodruff keys in
the 3/16" width, a 605, 606 and 607 and they're only
a few penny's so if I didn't have an old one to use
as a sample I'd just pick up one of each and try
them. I've got two engines on stands but I'm not gonna
pull the dampers to check the size of the key. Besides, I'd bet
our OP has already found his and had the damper on by now.
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 06/06/2014 2:09 AM.