Mercury Workshop Service and Repair Manuals > Cougar/XR7 V8-4.6L VIN W (1997) > Engine, Cooling and Exhaust | Engine | Tune-up and Engine Performance Checks | Spark Plug | Component Information | Specifications

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Spark Plug: Adjustments

Using a suitable spark plug gap tool, adjust spark plug gap to 1.3-1.4 mm (0.052-0.056 in) following tool manufacturer's instructions.

Mercury Workshop Service and Repair Manuals