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Home >> Jaguar >> 1986 >> XJ-S V12-5.3L >> Repair and Diagnosis >> Maintenance >> Tune-up and Engine Performance Checks >> Compression Check >> Specifications
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Compression Check: Specifications


NOTE: The cranking speed must not drop below 300 rpm and the throttle must be wide open.

Compression Pressure 200-220 psi
Differential between cylinders 10 psi (max)

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