Subject: Lapping Housings
From: Paul
Date: 8/3/2000, 5:33 PM


<< Yes but Lapco will re-nitride. PL

 > >> LAPCO
 > >> 5440 HWY. 55 East
 > >> Lake Wiley
 > >> South Carolina
 > >> (803) 831-0761    Bob or Dick Pasture >>

I heard recently that re-nitirding is not being recommended anymore by Lapco
as the outside vendor that did it for them is no longer satisfactory. There
is a place in NC that does nitriding but I have not sent them anything. Lapco
said that after nitriding the side housing has to be AGAIN lapped! It was
recommended to me to forget the re-nitirding and go with it as it is. Guess
it depends on how deep the original nitride was-most textbooks say not very
deep-

Marc Wiese 20B in something this way comes.....

I am not surprised. Things usually have to be finished ground after
heat treating. I am not sure about the nitriding temp but as I recall
it is only about 750 degrees F. That should not warp cast iron much.
I am sure I can find a place here in LA to do it. 

Paul Lamar
 
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