ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Valve Clearance > < Spark Plug Gap|Page 986
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Compression Check: Specifications

NOTE: Compression pressure should be checked at normal operating temperature with spark plugs removed and throttle plate wide open. Cylinder
compression pressure is considered within specification if lowest cylinder reading is at least 75 percent of highest cylinder reading.

Valve Clearance > < Spark Plug Gap|Page 986