Tip & How-To about 1999 Mercury Grand Marquis

Spark Plug gap & torque

The Motorcraft AWsF-32P plug is designed for this 4.6lit engine
The gap should be set at 0.054 inch.
The torque of the plug should be between (84 to 180 in.lbs.)
anti seize lube should be put on plugs threads before instillation.
Some of the plugs are hard to get to, however if you cut 12 to 16" rubber hose & slide over the plug, it makes the job alot simpler. Hope this helps.
Malcolm Sanford

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should i gap the spark plug the same as the old one i take out for mustang gt 1991


No, you've got no idea whether that is the correct setting. Your car manual should have the correct settings. Failing that, if you google "Spark plugs gap setting 1991 ford mustang" you should get an answer something akin to:-

( .054 inch ) - according to www . motorcraft . com
Read more: http://wiki.answers.com/Q/What_is_the_spark_plug_gap_on_a_1991_mustang_gt#ixzz1UjTk6dqh

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