Paul wrote:
It just occurred to me that not everyone on here has seen the inside
of a used rotary engine. It is a wonder the seals don't stick long before they
actually do. The major two day job overhauling a rotary is cleaning the rotors.
Every body has their own way of doing it and just about every chemical
has been tried. Some will eat the rotor bearings. Here is a picture of
a couple of typical rotors. Here too is the temp distribution on
the face of the rotor. 200 C is about 372 F well above the coking temperature
of most motor oils.

Paul Lamar

Larry Hendrix wrote:

Paul,

I don't know if you are interested in trying different solvents for cleaning rotors and other parts, but here are a couple that I have used in connection with printed circuit resist removal.  They
are *very* aggressive, and may start to pit the rotors if soaked rather than brushed.  They are also aggressive to human skin, so if you decide to use some, use with care.

        Lonco (London Chemical Company) Alkaline Stripper
        Oakley Chemical Alkaline Stripper
Larry Hendrix

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