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Home >> Geo >> 1997 >> Metro Base >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications 1.0 & 1.3L >> Mechanical Checks >> Engine Compression

Engine Compression

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

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 9.5:1
Normal Compression Pressure (1) 199 psi (14.0 kg/cm2 )
Minimum Compression Pressure (1) 156 psi (11.0 kg/cm2 )
Maximum Variation Between Cylinders (1) 14 psi (1.0 kg/cm2 )
(1) Checked at 250 RPM.