FixVault

Engine Compression

Test compression with engine at normal operating temperature, spark plugs removed, throttle valve wide open and engine at cranking speed (300 RPM).

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
FWD - 1.5L 9.6:1
RWD
1.5L 8.7:1
1.8L 8.5:1
Compression Pressure
FWD 178 psi (12.5 kg/cm2 )
RWD 171 psi (12 kg/cm2 )
Minimum Compression Pressure
FWD 125 psi (8.8 kg/cm2 )
RWD 120 psi (8.4 kg/cm2 )
Maximum Variation Between Cylinders
FWD 7 psi (0.6 kg/cm2 )
RWD 9 psi (0.6 kg/cm2 )