buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Valve Clearance > < Spark Plug - Gap Information|Page 260
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Compression Check: Specifications

Minimum, 2068 kPa (300 psi) @ 200 rpm. The lowest reading cylinder should not be less than 80% of the highest. Perform compression test with
engine at normal operating temperature, glow plugs removed and throttle wide open.

Valve Clearance > < Spark Plug - Gap Information|Page 260