Engine Compression

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Warm engine to normal operating temperature. Remove all spark plugs. Disconnect ignition coil primary wire connector. Hold throttle plate fully open. Crank engine and note compression pressure.

COMPRESSION RATIO

Application	Specification
626 2.5L	9.2:1

COMPRESSION SPECIFICATIONS

Application

Minimum psi (kg/cm² ) @ RPM

Standard psi (kg/cm² ) @ RPM

626 ⁽¹⁾

142 (10.0) @ 250

203 (14.3) @ 250

⁽¹⁾	Difference between cylinders should not be more than 28 psi (2.0 kg/cm² ).