Mazda FD3S RX-7 Compression Test

Compression test on a Mazda FD3S RX-7 using an OEM Mazda RE Compression Tester.

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rx7 for sale - compression test

Rx7 Compression Test

RX-7 rotary engine compression test with failed apex seal
This shows how to use a standard compression gauge on a rotary engine. This is not a story with a happy ending -- the results of this test show what you'll see on a good rotor, and on one that has a bad apex seal.

Rx-7 rebuilt engine compression test
i am selling my Rx-7 rebuilt engine and the 88 10th anniversary widebody shell. this video shows the compression test of the engine. both rotors get up to 100 psi.. remember, this compression tester is a regular kind, not rotary specific, so it shows a few erratic readings. also, this is the first time this engine was turned over after sitting in a car for a few years, it still had lots of grease and protection oil inside, and the seals will make an even better seal as the engine starts running and they start moving better.