Spark plug torque
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Joined: Mar 2002
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Spark plug torque
I know there has been a lot of talk on blown spark plugs. I have not seen a cause for sure as of yet. Some say it happened with original plugs and some have had them changed. Have I missed the reason? Has Ford put out a TSB on the subject? I am going to have to change my plugs soon. I am wondering what the torque is on the plugs? Any tips on making it easier?
Sorry for all the questions but I can't afford a new head.
Rob
Sorry for all the questions but I can't afford a new head.
Rob
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Joined: Jan 2002
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From: New Orleans
I dont have a new engine, but on my 5.0, I just tighten them by hand as hard as I can, then just give them like a 1/4 turn with the ratchet. They are in there good, and this is how I was always taught to tighten plugs. Dont overtighten!!!
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Joined: Jun 2002
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From: Under the flightpath of old ORD 22R
Re: Spark plug torque
From another thread
Originally posted by TexfordD
stay with the motorcraft,go with the ford performance 9MM wires,gap should be .054",with torge on the plug at about 110 inch pounds....that is Inch Pounds
stay with the motorcraft,go with the ford performance 9MM wires,gap should be .054",with torge on the plug at about 110 inch pounds....that is Inch Pounds
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Joined: Apr 2002
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From: Dallas
84 to 164 Inch Pounds....
I've always stayed around 110 Inch Pounds and have had no problems..the Lightining motors would go higher because of the stress placed on the plugs by the blower...heres the conversion table between Inch Pounds and Foot Pounds....1 Inch Pound=0.08333 Foot Pound...1 Foot Pound = 12 Inch Pounds...so 11Ft/Pds= 132 In/Pds..the 84/164 Inch Pounds comes from another manual and the center of that referance is 124 In/Pd....IMHO I'd rather have snug than stripped 
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Joined: Apr 2002
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From: Columbus, Ohio
Peterbilt - I pretty sure the torque setting won't change depending on whether or not anti-seize is used. Anti-seize is just so you will be able to more easily remove the plugs the second time you change them.
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Joined: Sep 2002
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From: Austin, Tx.
Thanks for the reply guys. I always use anti-seize myself, but several Ford mechanics I talked to said Ford says not to use it. Of course, they probably would like for you to destroy your heads. The other thing I'm concerned about is if I change my plugs using anti-seize and blow a plug Ford will say you messed with the plugs and not warranty it. It's always something
Pete
Pete
