> Lapping it or grinding it is no problem but it might
     > go through the nitride surface layer. You should
     > think about
     > re nitriding it.
     >
     > Paul Lamar

    Paul:  What is the approximate cost of doing this to a
    Mazda rotor housing and whom does it best?
    Kevin Richey



    I don't know the cost.
    Mazdatrix does a good job. It might be cheaper to replace the
    housing with
    a good used one that does not require .004" removed.


    Paul Lamar ...No rotor no motor.

Paul, Kevin,
A .004 inch cut will certainly go through the nitride. Nitrided
surfaces
are as thin as .0005 thick. On the iron/steel housings it will be a
little thicker, (due to the porosity), but won't be near .005 thick.
Bill Jepson

I believe Racing Beat will only remove .002.  If the housing needs more
than that its an anchor. T.W.


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