Paul wrote:
Can't be done. I looked at this awhile back and the tension bolts
interfere with the front cover and inner passages. Also you still need
RTV on the bolts to damp the violin string vibration.
>
> Of course if you start with a clean sheet and do a custom front
cover
> like Everett Hatch did no problem.
>
> Paul,
It looks as if both end housings were custom. Did he have external oil
and water pumps?
Fred O.
I don't know. I would say probably.
Everett wrote an article on this engine for EAA Sport Aviation
mag. I would love to get a scanned copy of that article or just a
zerox if
possible.
Paul Lamar ...No rotor no motor.
Paul,
I mentioned this in the Deep Dark Past, Time Fastener Co. They do the
best insert for use in aluminum I have ever found. They were sold
through Kawasaki dealers in the '80s and might be still.
WWW.Timesert.com <http://www.Timesert.com> gets you there. These are
the best inserts ever made. The best part is that due to a unique timed
thread system they are no thicker than Heli-Coils, but the thread is
MUCH stronger. They make a range of metric and inch sizes. In an
aluminum end housing these will prevent pullout. As an engineering
upgrade to the regular threads they will greatly improve the threads. As
a repair they produce a thread superior ot the original! I would also
consider a external oil pump and feed. For everybody's information.
Bill Jepson
Bill,
Timeserts win. Also, the front plate we are designing does not look like a
Mazda part, as it has no intention of going in a car. Different oil system,
water pump and accessory drives....
Larry
--------------------------------------------------------------
Larry, Bill Jepson is building a 3 rotor powered RV10 and lives in your neck of the
woods. Perhaps you guys can get together.
Also I have some experience designing casting patterns using
3D programs. I did some intake manifolds.
I would like to build this two piece end housing and try
out the idea. Similar to what Richard Sohn is doing. (Last four jpgs.)
I work with American International foundry in San Fernando. Would you be
interested in hogging the pattern and core boxes out of aluminum? I would keep the
patterns simple by doing away with all side ports and a lot of the front
cover stuff similar to the way Everett Hatch did it. I am sure we can sell
a bunch of these things to the one rotor guys that have a severe weight
problem.
Paul Lamar ...No rotor no motor.
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