X-Mozilla-Keys:                                                                                 

<snip>

I have also located a lapping firm on the East coast that will lap a
set of
housings and have them re-nitrided for about $250.00. I should have a
sample of their work to look at by Friday

<snip>

That lapping and nitriding sounds like a good deal. Probably
better than the Mazda induction hardening process.

tcarrico wrote:
I thought we ruled this out due to warpage during nitriding?  tc

Well if they can do it and not warp it more power too em.
Perhaps they do a final lap after nitride. One thing about
old cast iron. It is more stable then new cast iron.

Paul Lamar

Tracy Crook wrote:
It was my understanding that Mazda used the nitriding process on 86 and
later engines.  They had no problems with warping.

Tracy

 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org