<VV> clutch disk ware

[BobHelt at aol.com]

Randy,
It's best to measure the thickness of the clutch disk with a micrometer.  
The procedure and dimensions are in my book, THE CLASSIC CORVAIR which I know 
 you have a copy of. In addition a worn clutch is usually a combination of 
a worn  disc and a weak pressure plate. so they both should be replaced.
 
Now for the rivets......As I remember, the disks that have rivets should  
not be used. There is an article in the Tech Guide as I remember on this.
 
In a message dated 10/9/2015 8:12:36 P.M. US Mountain Standard Time,  
virtualvairs at corvair.org writes:

Question:   What does a worn out clutch disk look like?  
Now for the part about the clutch disc.  The grooves are  really shallow.  
But the kicker-  a couple of the rivets are just  starting to rub on the 
flywheel.  Without knowing how thick they are  supposed to be, its'  the rivet 
part that concerns  me.