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setting the spark plug gap

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Old 09-01-2017, 07:34 PM
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setting the spark plug gap
2005 Ford F-150 XLT 4.6ltr v8.
what is the best plugs to use and what do i gap then too?
 
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Old 09-01-2017, 08:13 PM
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Motorcraft SP493, .054, torque to 28 ft/lb, NO antiseize.

Use a small amount of dielectric grease in the coil boots.
 
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Old 09-01-2017, 08:27 PM
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Not to start an argument, but the service manual states to torque to 11 lb-ft.
 
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Old 09-01-2017, 10:50 PM
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www.blownoutsparkplug.com

FAQ 51 and 52. Factory torque spec is too loose, leads to plugs loosening and blowing out, stripping the threads in the head.

LONG thread you may want to read:

https://www.f150online.com/forums/v8...t-problem.html
 
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Old 09-01-2017, 11:14 PM
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That's some good info there. Thanks for the links. I was sceptical at first because 38 seems like a lot for an aluminum head.
 
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Old 09-02-2017, 09:17 AM
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You probably have a typo but it's 28, not 38.
 
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Old 09-05-2017, 12:23 AM
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Yea, that's probably what it was. Sometimes i type faster than my head thinks. 28 sounds much better than 38 anyways.
 
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