<< Richard Ramsey wrote:
 >
 > I am working on a digital compression tester that will interface to my
palm pilot
 > to capture and display the samples. You can buy a palm III for about
$150.00 and
 > transducer and circuit will run about $250.00 at qty 1. I recently bought
another 3
 > rx-7s and need to better check the compression.
 >
 > Richard Ramsey >>

Does Richard plan to make this available? How about it guys?

Marc Wiese 20B in something this way comes.....

Bill Freeman wrote:

Please explain to this uneducated non-Mazda owner why anyone would
even consider spending this amount of time and money for a
compression checker?  Is there something I missed.

Bill

In a regular compression checker there is a one way valve so as the
engine rotates each chamber adds pressure. With a Mazda specific compression
checker you can tell which chamber is bad or even if only one chamber
is bad.  One of the tricks to remove the one way valve (looks like a tire
valve) and watch the needle bounce as each chamber comes around.
If you get three equal bounces in a row for each rotor you know your engine
is in pretty good shape.

Paul Lamar
 
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