Ken Powell wrote:

Leon,
I know that I do not have the experience with rotary engines that you
have; however, I have disassembled 4 13b's.  All came from cars with
less than 125,000 miles and NO body damage.  These cars were in the
junk yard because the engines were DEAD.  Upon disassembly, 3 of
these engines had apex seals that were obviously stuck - I can not
say for certain that rust was not involved but if so, I could not see
it.  Carbon appeared to be the cause.  The forth engine had broken an
apex seal but was in pretty good shape otherwise.  I might add that
what little oil left in the pan (the yard drains all liquids) was
filthy.  Without a doubt, filty mineral oil will ruin an oil injected
rotary engine.  I maitain that for aircraft use a good grade of
marine 2 stroke oil should be mixed with the gas.  It can't hurt and
will almost certainly help.  Besides, there is less to go wrong - no
oil pump or oil lines.

Ken Powell

 
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