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Engine Compression

Check engine compression with engine at normal operating temperature, all spark plugs removed and throttle wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
VIN 7 9.5:1
VIN 8 9.3:1
Compression Pressure
Normal (1) 185-205 psi (13-14.0 cm2 )
Minimum (1) 180 psi (12.7 kg/cm2 )
(1) Manufacturer recommends a minimum of 10 "puffs" or gauge needle bounces when measuring compression.