Ken Powell wrote:

Paul,
About a year and a half ago I asked the group how they cleaned rotors.
Well, this is a really great group and the response was overwhelming -
so much so that I was sort of embarrassed that I couldn't figure out a
better way.  But the fact remains that cleaning the rotors is by far the
most difficult part of rebuilding a wankel and is a real b*****.  Let
use know how the walnut shell works.  BTW, if the synthetic oil that AL
is using has a very low ash content he may get away with injecting the
sump oil.  He could perform your famous 'oven test' and get a good idea
of what residue will be left on the rotors.

Ken Powell

Sure is. I tried out the walnut shells in my blaster today and they get most of
the thick stuff off but leave most of the baked on varnish. I think
I am going to use glass beads and clean it thoroughly after that. I am sure 
my measly 2 HP air compressor cannot imbed glass beads in cast iron.
 
More about oil injection later today.

Paul Lamar

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