Re: Lifter Hardness

[N197TR4@cs.com]

Matching hardness makes sense....gear hardness falls within a fairly narrow 
band of specification at 58-62 RC.

I wonder also about the depth of hardening (case hardness) on lifters.

Isnt Chuck Gee a metalurgist...Chuck?

Joe (A) 


> Seems to me, there was also an opinion at the time that part of the problem 
> involved the fact that to work, all of the pieces needed to be of similar 
> hardness.  One could not be hard and another soft, etc.  It was felt this 
> was 
> a contributing factor.
> 
> Bill