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Home >> Subaru >> 1998 >> Forester Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Specifications >> Engine Controls - Service & Adjustment Specifications >> Mechanical Checks >> Engine Compression
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Engine Compression

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio
All Models 9.7:1
Compression Pressure (1)(2)
All Models 156-185 psi (11.0-13.0 kg/cm2 )
(1) Engine cranking at 200-300 RPM with throttle open fully.
(2) Maximum variation between cylinders is 28 psi (2.0 kg/cm2 ).
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