Spark Plug Torque 5.4

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Oct 10, 2006 | 02:15 PM

#16

stevenn1

Senior User

Joined: Sep 2003

Posts: 411

Likes: 2

From: KS

Quote:

Originally Posted by FORDDIEHARD

.....Also does anyone use either anti seize or thread locker on the plugs since there is only 4 threads that hold them in....

Thanks
Tim

Do use anti-seize.
Do NOT use any thread locker - blue or red.
Torque around 12-15 ft/lbs should be good enough (check Haynes manual).

Oct 10, 2006 | 05:22 PM

#17

FortyFords

Post Fiend

Joined: Jan 2002

Posts: 5,859

Likes: 7

From: USA

Quote:

Originally Posted by Big Orn

I bet that's not all your pop used to dust that **** of yours, Rich...

Yea his belt ,Mr Big !
Don't say that to loud nowadays or the parenting police will get us!
Rich

Jan 14, 2022 | 10:46 AM

#18

TallTexAustin

Trailering

Joined: Dec 2017

Posts: 20

Likes: 0

Old thread but still applies in 2022.
If in doubt review this guy's yt videos. He has a lot of content on Ford engines and tips/tricks. His #1 tip is use only Ford spark plugs and over torque them, yes, over torque and do not go by the OEM guide book. OEM says 15? ft/lbs, Ford Tech guy says 20-25ft/lbs so the plugs will never vibrate loose and you get a spark plug blowout scenario.

FordTechMakuloco
638K subscribers

Jan 14, 2022 | 08:26 PM

#19

lshort

Laughing Gas

Joined: Mar 2002

Posts: 951

Likes: 343

From: Newton Illinois

I have had plugs blow out of my 03 5.4 2 valve when they had never been removed from the factory, I have had them blow out when I torqued them to 15 foot lb, I have had them blow out when torqued to 28 ft pounds.

I really do not think it matters what you torque them to

Jan 15, 2022 | 11:34 AM

#20

WE3ZS

Moderator

Joined: Jul 2010

Posts: 12,052

Likes: 1,550

From: Media PA

Quote:

Originally Posted by lshort

Were any of the blowouts on the same cylinder(s)? There is a good chance of thread damage from a blowout and just reinstalling a new plug in a damaged hole isn’t the best solution. Have you done any insert repairs?

Jan 15, 2022 | 11:37 AM

#21

jetty

Tuned

Joined: Dec 2017

Posts: 293

Likes: 29

From: Houston

I re-torque my 5.4 2V plugs annually as part of my preventative maintenance program. If I was driving lots of miles, I would re-torque every 6 months.

Jan 15, 2022 | 04:39 PM

#22

lshort

Laughing Gas

Joined: Mar 2002

Posts: 951

Likes: 343

From: Newton Illinois

Quote:

Originally Posted by WE3ZS

I never tried to screw one back in, I either used a self threading repair insert or a time sert insert, I think I finally solved this problem for the last time on a NAPA replacement engine that was doing the same thing when I put cal-Van inserts in all 8 cylinders.