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Home >> Lexus >> 1995 >> SC 400 >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Controls - Specifications) >> Mechanical Checks >> Engine Compression

Engine Compression

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WARNING: This page is about a different car, the 1995 Lexus SC 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
SC300 Compression Ratio 10.0:1
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