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Home >> Mazda >> 1991 >> MX-6 DX, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Controls - Specifications >> Mechanical Checks >> Engine Compression >> RX7
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Engine Compression: RX7

  1. Warm engine to normal operating temperature. Disconnect crank angle sensor connector. Hold throttle plate fully open. Remove both trailing spark plugs (the 2 top spark plugs). Connect Compression Tester (49-F018-9A0) to upper spark plug hole of front rotor housing.
  2. Crank engine for 5-10 seconds at specified cranking speed. Note the compression of the 3 combustion chambers. Repeat procedure at the rear rotor housing.
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