Andrew Mueller wrote:

I recently signed up to be on your mailing list for rotary conversions.  I
am a rotary rebuilder for the automotive industry and am sifting through the
200+ emails I received over the last few days.  I am responding to the
letter that was written below.

Are you aware that MAZDA will sell you a rebuild kit for rotaries...if you
know the part numbers up front?  These kits come with everything except the
front and rear main seals and oil control rings and rubbers, and do not
include any parts to rebuild the rotors or any internal springs.  What it
does have are the inner and outer water seals and ALL o-rings for the
completion of the engine, all for around &100 a kit.  If you need part
numbers for these and other pieces, let me know, I'll be happy to give them
to you.  Also, MAZDA parts are the best there are provided that, like any
other engine, yours is run within operating temps and pressures.

As for reusing the inner water seal, be very careful when removing the seal
if the engine has been fired up and heated in any way.  As you may know this
multi-layered seal will separate and if it is reused in this condition, you
may experience a water leak some time in the future.  And to ensure that the
seal lasts as long as possible, go to MAZDA and get the heat shields for the
inner seal.  These are small slivers of creased metal that are placed along
the inner edge of the seal to help deflect some of the heat generated by the
combustion possess.

I know many tricks to building these engines.  Things that you will not find
in any manual and I have little reason to keep them all to myself.

Andy Mueller
amueller@jps.net

Andrew Mueller wrote:

Sorry Guys,

The heat strips I talked about in an earlier letter should go on the outside
of the inner water seal closer to the water jacket and should only be used
on engines that require the seals to be placed into the aluminum rotor
housings (1986 and newer 13B rotaries).

Thanks Leon!

Andy

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