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Home >> Infiniti >> 1997 >> QX4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing 3.3 >> Preliminary Inspection & Adjustments >> Mechanical Inspection >> Compression
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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.

V6 COMPRESSION SPECIFICATIONS

Application Specification
Normal Compression Pressure 173 psi (12.2 kg/cm2 )
Minimum Compression Pressure (1) 128 psi (9.0 kg/cm2 )
Maximum Variation Between Cylinders 14 psi (1.0 kg/cm2 )
(1) Minimum compression at 300-350 RPM.