Engine Compression
WARNING: This page is about a different car, the 1997 Jaguar XJ6. However, it is still accessible from the selected car via links, so may be relevant.
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open.
CAUTION:
Release fuel system pressure before checking engine compression.
COMPRESSION SPECIFICATIONS
| Application | Specification | ||
|---|---|---|---|
| Compression Ratio | 10.0:1 | ||
| Compression Pressure (1) | 157-167 psi (11.0-11.7 kg/cm2 ) | ||
| Maximum Variation Between Cylinders | 10 psi (.70 kg/cm2 ) | ||
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