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Home >> Pontiac >> 1992 >> LeMans VL >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Specifications >> Mechanical Checks >> Engine Compression

Engine Compression

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

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.5:1
Compression Pressure 159.5-188.5 psi (11.2-13.3 kg/cm2 )
Maximum Variation Between Cylinders 14.2 psi (1 kg/cm2 )
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