Engine Compression
WARNING: This page is about a different car, the 1995 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
To check engine compression, bring engine to normal operating temperature. Disconnect distributor electrical connector(s). Remove all spark plugs. Remove air intake hose from throttle body. Fully open throttle. Ensure engine cranking speed is at least 250 RPM when measuring compression.
COMPRESSION SPECIFICATIONS
| Application | Specification |
|---|---|
| Compression Ratio | 10.0:1 |
| Compression Pressure | 185 psi (13.0 kg/cm2 ) |
| Minimum Compression Pressure | 156 psi (11.0 kg/cm2 ) |
| Maximum Variation Between Cylinders | 14 psi (1.0 kg/cm2 ) |