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Home >> Jeep >> 1973 >> Commando 5.0L Eng VIN H >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Tune-Up - V8 >> Compression Pressure

Compression Pressure

With engine at normal operating temperature, spark plugs removed, throttle and choke valves wide open and engine at cranking speed, variation between cylinders should be no more than 10 psi.