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Home >> Mercedes Benz >> 1978 >> 450SL >> Repair and Diagnosis (Single Page) >> Engine Performance >> Tune-Up >> Tune-Up Procedures - V8 >> Engine Compression

Engine Compression

Check compression pressure with engine at normal operating temperature and throttle valve fully open. Crank engine a minimum of 8 revolutions.

ENGINE COMPRESSION SPECIFICATIONS

Application Pressure
Normal Pressure 130-144 psi (9-10 kg/cm2 )
Minimum Pressure 108 psi (7.5 kg/cm2 )
Maximum Variation 21 psi (1.5 kg/cm2 )