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Home >> Volvo >> 1985 >> 740 Base, 4D Sedan, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Adjustment >> Tune-Up - Diesel >> Testing >> Engine Compression
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Engine Compression

Check compression with engine at normal operating temperature, spark plugs removed, throttle valve wide open and at normal cranking speed (250-300 RPM). Crank engine at least 6 "puffs" per cylinder.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.8:1
Compression Pressure 114-156 psi (8-11) kg/cm2 )
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