Who you trying to convince?

 

Yup, diesel is best!

 

There's more to the spark plug story than the number of threads. Ford did at least two factory torque-down procedure changes that greatly reduced the occurrence. In effect, I think they were either cross-threading or inaccurately torquing the plugs at the factory. The updated procedures involved physical inspection if the machines didn't see a torque value under or over a certain number of degrees of rotation.

I haven't heard of ANY plug blowouts after a DIY change that involved checking the threads for preexisting damage and correct torque WITH lubrication (anti-seize). Of course, someone will now dig up a report that contradicts that statement

 

I wouldn't use anti-seize. I see quite a few failures of bolts and nut-studs when anti-seize was used. It acts like a lube to torque the fastener normally to tight then dries out with heat making it like a cement in many cases. Just a drop of oil is normally the way to go.

 

If the anti-seize dried up and turned to cement, either it was so freaking hot the metal in it melted or you didn't mix it - it does separate and the oil that floats to the top needs to be mixed back in.

There ain't no way I would ever NOT use anti-seize in an iron/steel-aluminum interface, at least at the temps we're talking about here.

Oil would just burn off, and is definitely NOT the way to go with a spark plug.

 

I know the deal. I've read the the TSBs and threads etc. This whole procedure came around because of the number of threads cut into the head or the lack there of.
I'm not saying that people haven't put the sparkplugs in wrong. I'm saying that if there where more threads then the problem wouldn't be as vast as it was. Its not like it was 100 plugs that got spit. It was a lot. I don't know the number and really don't care. I just know that the problem is in the design no matter how great the human error expanded it.

 

PSD's ROCK !!!!!!!

 

What He Said!^^^^^

 

There were more CPS shut downs with 7.3's than there were V-10 spark plug problems. You don't even want to go to the 6 leaker file, we'd be here till next month sorting them out.

Pap

 

I agree. However, it's not as bad as many portray it to be. Present company not excluded

 

What is the reason out of all the aluminum head out there being used now day only ford had a problem with the V10 head? Is it just less threads then normal like people are talking about?

I use oil on my hondas plugs (because my truck doesn't have spark plugs) and it never dries out of the threads. The plug on my daily driver hardly ever get pulled out. After last years race season I did a checkup on the car and when I pulled the plugs the threads were still wet with oil after being in there a few years DD and racing.

But anyhow if anti-seize works on plugs better than I've seen it work on brakes and exhaust then I am sure it is fine. I'm just saying normally when I see a fastener failure it is because of anti-seize when its not rust.

 

was talking to the head of the local ford garage about the "spiting spark plugs" deal and he laughed his head off. claimed it is almost exclusively operator error that caused it.

Now take this for what it's worth since it is second hand.

His claim and what he was supposedly told by ford was the problem came from the threads protuding into the cylinder and building up carbon on the last couple of threads on the plug. When people pull them out the carbon damages the threads in the head so when you put the new one in it can't hold anymore. Oh and second is pure operator error, pulling the plugs on a hot engine.

His claim is if you just break the plug loose, then spray carb clean into the hole around the plug and let it sit an hour to soak past the threads before pulling the plug it never blows one. Also they supposedly did NOT revise the head to fix the problem all they did was change the plugs. there is the same amount of threads in the later model heads as the early heads that had the problems.


Oh and I wouldn't even think of putting a spark plug into an alum head without anti-seize. Never have never will and never damaged any threads. Actually won't put any steel bolt or stud into alum without it. ONly difference is which type I use. with spark plugs I use the copper everything else the regular anti-seize.

 

I the way i see it and how you said it makes your point null. 99.9 % of the time could be on your way to and from work which could very well be within 10. So you see 3 or so trucks on their way to get loaded. Come to the country and your will greatly change.
As far as my truck goes it just depends. Sometimes its loaded everyday then others its just getting me around. Of course its always hauling tools and supplies.
I think your statement is alittle vast. It can mean so much or nothing at all.

 

I have a small problem w/ this. I know of 3 different cases of spit sparkplugs that where factory. Aight the tech installing could have done goofed up. When you have a situation where the tech is liable to goof then what do you expect average joe at home to do?
In 03 Ford cut 8 threads then in 04 the went to 3v heads on 5.4s then v10 in 05. That was the new plugs and they had their own problems.

 

Spark WHAT