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Mechanical Inspection: Compression

Check engine mechanical condition using a compression gauge, vacuum gauge or an engine analyzer. See engine analyzer manual for specific instructions.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 10.0:1
Normal Compression Pressure 185 psi (13.0 kg/cm2 )
Minimum Compression Pressure (1) 142 psi (10.0 kg/cm2 )
Maximum Variation Between Cylinders 14 psi (1.0 kg/cm2 )
(1) Minimum compression at 300-350 RPM.