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Home >> Jaguar >> 1982 >> XJ6 Base >> Repair and Diagnosis >> Engine Performance >> Specifications >> Tune-Up - 6 CYL >> Engine Compression

Engine Compression

Check compression pressure with engine at normal operating temperature, throttle valve wide open, all spark plugs removed and coil wire disconnected.

COMPRESSION SPECIFICATIONS

Compression Ratio 8.1:1
Compression Pressure (1)
Max. Variation Between Cylinders 5 psi (.35 kg/cm2 )
(1) Compression pressures vary from engine to engine. The critical factor is pressure variation between cylinders.
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