DIY 6.2 Spark Plug Change

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B E N

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Depends on the factory, NGK calls for 0.030.

Ford spec is 0.042-0.046".

Fine tip platinum

Torqued to 18 ft-lb. Antisieze is the lube for torque spec. (tiny amount, don't glob it on).
 

Ruger

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Depends on the factory, NGK calls for 0.030.

Ford spec is 0.042-0.046".

Fine tip platinum

Torqued to 18 ft-lb. Antisieze is the lube for torque spec. (tiny amount, don't glob it on).

Thanks. I meant the spark plug that Ford recommends - Motorcraft. My 2011 manual doesn't give the plug number but gives a gap of .039 - .043 inch. Things change - Ford Motorcraft Transfer Case Fluid, for example. What's the Motorcradt plug number that Ford is specifying for GEN1 Raptors? Does anyone know?
 

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Owners manual or repair manual? There is a service number (how much the gap should be when worn) and an install number (the initial setting).

It's should be fairly obvious that gap isn't a hypercritical number. More gap can be a little hotter, less gap gets you a little more dwell. As long as your gap isn't wide enough you start getting blow out, or wears to the point of getting blow out your fine.

Ford number is cyfs-12-fp
14mm thread size
0.982" reach
Tapered seat
Platinum fine wire tip
Motorcraft heat range 1
 

Ruger

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Owners manual or repair manual? There is a service number (how much the gap should be when worn) and an install number (the initial setting).

It's should be fairly obvious that gap isn't a hypercritical number. More gap can be a little hotter, less gap gets you a little more dwell. As long as your gap isn't wide enough you start getting blow out, or wears to the point of getting blow out your fine.

Ford number is cyfs-12-fp
14mm thread size
0.982" reach
Tapered seat
Platinum fine wire tip
Motorcraft heat range 1

Is the Motorcraft part number classified?
 
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