Dennis Hawkins wrote:

To remove caked on carbon from rotors, pistons, cranks, lifters,
or whatever, use Easy Off oven cleaner.  Spray it on and let it
set for about 1/2 hour, hose off and repeat if necessary.  The
carbon washes right off.  Its simple and easy to come by.

When done, spray it thoroughly down with WD40 to get rid of the
water.  I don't know if this method will tarnish the rotor
bearings or not, but it doesn't seem to bother other bearings.
Maybe somebody with an old set can try it out and let us know.

The last time I rebuilt a rotary, I used a wire brush and it
took forever and never really got the job done.  Should I ever
rebuild another one, I'm using the easy off.

Dennis.

Dennis Hawkins (n4mwd@amsat.org)

 
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