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Engine Compression

Check compression pressure with engine at normal operating temperature, spark plugs removed, throttle valve wide open and engine at cranking speed. Crank engine until maximum pressure is reached at each cylinder.

COMPRESSION SPECIFICATIONS

Application Specification
Normal Compression Pressure
626 164 psi (11.5 kg/cm2 )
GLC 171 psi (12 kg/cm2 )
Min. Compression Pressure
626 115 (8 kg/cm2 )
GLC 128 psi (9 kg/cm2 )
Max. Variation 28 psi (2 kg/cm2 )