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Home >> Jeep >> 1972 >> DJ5 Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Tune-Up - 6 CYL >> Compression Pressure

Compression Pressure

With air cleaner and spark plugs removed, and throttle and choke wide open, crank engine through at least four compression strokes. Compression should be 185 psi with a maximum variation of 25%.