Spark Plug Torque Specs
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Joined: Oct 2008
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From: Avilla, IN
Spark Plug Torque Specs
I am planning on helping a friend change the spark plugs on his 2004.
So thats the year that we want the specs for, but it would be nice to have the torque specs for every year V10 all in one place. If someone would first give the factory specs that would great. Then we can talk about other #'s. I've heard anywhere from 11 lb.-ft. to 32 lb.-ft. and also whether or not to use some sort of lubrication. Anti-Seize?
So thats the year that we want the specs for, but it would be nice to have the torque specs for every year V10 all in one place. If someone would first give the factory specs that would great. Then we can talk about other #'s. I've heard anywhere from 11 lb.-ft. to 32 lb.-ft. and also whether or not to use some sort of lubrication. Anti-Seize?
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Joined: Sep 2004
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I think we should get a sticky with the torque specs. In my search I've seen too many variations. Maybe even set up a poll or something. Then have people post of they have had or haven't had a blow out with the torque spec they used.
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FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
14 ft/lbs is the general consensus.
USE ANTI-SEIZE. If the zinc plating on the plug is nicked or fails, the interaction between the iron plug and the aluminum head is NOT PRETTY.
USE ANTI-SEIZE. If the zinc plating on the plug is nicked or fails, the interaction between the iron plug and the aluminum head is NOT PRETTY.
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Tuned
Joined: Sep 2002
Posts: 408
Likes: 11
From: saline USA
I torqued mine to 14lbs at plug change and six months later had a loose one.
Went to blownoutsparkplug.com and got their information. Torqued to 30lbs and have done it three times since. The plugs came out with no problems and went in great. No damage to the threads.
the guy at blownoutsparkplug.com has torqued them to 100lbs and still didn't strip on the 5 thread heads. I agree with him that the threads don't strip due to over tightening, but they strip because they wallow the threads out when they come loose.
No lubricant. 200,000 on my motor and going strong 2002 two valve V10 van.
andrew.
Went to blownoutsparkplug.com and got their information. Torqued to 30lbs and have done it three times since. The plugs came out with no problems and went in great. No damage to the threads.
the guy at blownoutsparkplug.com has torqued them to 100lbs and still didn't strip on the 5 thread heads. I agree with him that the threads don't strip due to over tightening, but they strip because they wallow the threads out when they come loose.
No lubricant. 200,000 on my motor and going strong 2002 two valve V10 van.
andrew.
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