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Engine Compression

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

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 8.1:1
Normal Compression Pressure 149 psi (10.5 kg/cm2 )
Minimum Compression Pressure 114 psi (8.0 kg/cm2 )
Maximum Variation Between Cylinders 7 psi (.5 kg/cm2 )
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