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Home >> Triumph >> 1981 >> TR8 Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up - V8 >> Compression Pressure
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Compression Pressure

Check compression with engine warm, spark plugs removed, and throttle wide open. Crank engine through at least 4 compression strokes before taking reading. Minimum pressure should not be less than 135 psi (9.5 kg/cm2 ).