I am thinking of offering a device to measure and  record
the compression on a rotary engine.
Price would be  about $60 for the sensor, power supply and spark plug hole
fitting.  It would require a $90 Hytek data aq module.
http://www.hytekautomation.com

Similar systems  from:

http://rotarydiagnostics.com/model_rect-03b.htm

cost $364 + $20  for shipping and handling.

Handy to check the condition of that  engine
before you buy it. Use an impact wrench on the
front e-shaft nut to turn the engine over.

What do you  think?

Paul Lamar

Just a note of caution.
A big impact  wrench applied to a small Go-Kart Wankel engine will brake
the eccentric  shaft. We have seen it.
The inertia of the eccentric and Rotor is too much  for the shaft to
handle such extreme accelerations.
Turn the impact  feature off if you can or use a steady torque driver
such as a hand  drill.

Rolf Pfeiffer

Thanks for the tip Rolf.

That  certainly does not apply to the Mazda. One can barely
get that nut off with  a 3/4 drive impact wrench :)


Paul Lamar


-- Why the impact wrench, why not just run the starter motor???
Rich

You can run the starter motor but a lot of engines are sitting
alone in junkyards.

Paul Lamar

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