Engine Compression
Ensure battery is fully charged. Check engine compression with engine at normal operating temperature, at specified cranking speed, all spark plugs removed and throttle wide open.
COMPRESSION SPECIFICATIONS (1)
| Application | psi (kg/cm2 ) | |||
|---|---|---|---|---|
| G20 | ||||
| Standard | 185 (13.0) | |||
| Minimum | 156 (11.0) | |||
| Maximum Variation Between Cylinders | 14 (1.0) | |||
| Q45 | ||||
| Standard | 186 (13.1) | |||
| Minimum | 144 (10.1) | |||
| Maximum Variation Between Cylinders | 14 (1.0) | |||
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