buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Compression Check|Specifications|Page 1722 > < Fastener Tightening Specifications|Page 1716
Page 1
background image

Compression Check: Specifications

The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less than 689 kPa (100 psi).  Perform
compression test with engine at normal operating temperature, spark plugs removed and throttle wide open.

Compression Check|Specifications|Page 1722 > < Fastener Tightening Specifications|Page 1716