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Home >> Acura >> 1989 >> Legend Base, 4D Sedan, Automatic >> Repair and Diagnosis >> Engine Performance >> Adjustments - V6 >> Adjustment >> Engine Compression

Engine Compression

Check compression pressure with engine at normal operating temperature, all spark plugs removed, throttle valves wide open and at specified cranking speed. Crank engine at least 6 revolutions to determine engine compression. Compression reading should be as specified. See ENGINE COMPRESSION  table.

ENGINE COMPRESSION (1)

Model Standard psi (kg/cm2 ) Minimum psi (kg/cm2 ) Minimum RPM
Legend 171 (12.0) 142 (10.0) 200
(1) Maximum variation between cylinders is 28 psi (2 kg/cm2 ).