Since New ,25-35 k amsoil 0w20 oil changes with eao11 filters,amsoil pi every 5 k miles ,never an issue with plugs ,copper anti-seize,torqued to 29 ft lbs just did 5th set ,treated 5.4 to New cops for the first time at 500 k,zero engine issues,OEM trans imploded tc @68 k,2004 e250 5.4,great engine!

 

You're less than half way there. Ever Google "Million Mile Van"? I believe the engine went to over 1,150,000 before it went and I think the trans went to almost the same, or close. Heads and pan never were off and trans pan was NEVER off!!! '98 E-250 5.4L
Your '04 is 2V right? That is a great engine, more old school, not the 3V and no cam phasers.

Update: Just checked and it went 1,299,986 before the engine died and 1,211,950 before the trans had to be overhauled. He has said that he had trans. flushes done every 50K mi I believe but that the pan had never been off it! It was a '97, not '98.

 

antisieze on these plug threads can cause false torque values....

 

I honestly believe the first set at 118 k cane out so easy due to thd religious use of Sunoco fuels amsoil pi

 

Good point,I'm **** on the anti seize,at least they were consistently inaccurate,differential serviced at 118 then 200,300,400,and now 500.trans was filtered and flushed at 118 with optional v-10 trans aux cooler in line,then at diff intervals.obviously with amsoil fluids.I'm shocked it still runs as well.as running strong.troyer tunes since 1800 miles.I run the snot out of this van

 

The thing that concerns me with antiseize is the possibility it will help the plugs loosen by themselves. However, at 29 ft/lb torque you are minimizing that possibility. Motorcraft plugs don't really need antiseize because the threads are nickel plated to minimize the dissimilar metal issue.

The 2V plugs don't stick - and being an 04 you probably have 8 thread heads, which also minimizes blowouts.

 

I always use Anti Seize and never had an issue. Just make sure they are torqued correctly!

Wayne

 

What year and engine?

 

Right and that particular two valve has the upgraded heads. Carried over from the late 03 MY's. 2 X's the threads in the plug chambers.

I have the same motor, - maybe the same trans that MM van had (E40D) ? Not sure. But this engine has gone the longest from what I've owned in the past. 307,000 miles, -compressions real close from one cylinder to the other. Heads have never been removed, It's never used oil between changes and it hasn't leaked anywhere so far. The trans will leak a little if I let it sit for 3 months. It always takes 3 months lol.

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Openclass... ? Yea, I think I've heard of yuh.. That's a good Torque #. The only thing I might worry about is breaking the plugs seal. Have you seen the old plugs before new? The ceramics get carboned up when they leak. Reason I ask, when you incorporate Anti Seize, your suppose to reduce torque by around 30%. I'm not sure how far you can push the plugs before you'll compromise that seal. (?)

Anyway, - Congrats

 

Every plug change I do reguardless of year, make or model.

Wayne

 

That's not something you should always do for specific reasons. The 4 thread Triton heads are one of these exceptions.

Further details at www.blownoutsparkplug.com, FAQ's # 51 and 52.

 

I disagree to that, I owned 4 thread heads and was pushing 12# of boost and used anti seize. I believe its all in proper torquing.

Wayne

 

No offense, but I think I'll listen to a Ford master tech who has turned fixing blowouts into a very good side business. Not doubting your competence or expertise, but these guys are specialists.

 

I to know Ford Master Techs and they use it on there personally Lightnings. Go over to Lightningrodder.com and i bet you will understand where i come from. Do you know what steel plugs and aluminum heads do to each other?

http://www.lightningrodder.com/forum...ght=anti+sieze

Wayne

 

I agree.

Yeah, he's not a Tech and probably hasn't been. That's alright. Ford Tech's don't use a anti-seize procedure with plugs. Neither does the manufacturer. It may have been different with the three valves; I haven't talked with a Tech about those in particular. But generally, they use a formula for torque if the part comes with it pre-applied. Pre-coats are common - Loctite (under the Ford Part#) is pre-applied often by the bolt supplier. Anti-Seize is pre-applied by Bosch, not sure about Motorcraft on some O2 sensors. The correct Dielectric is pre-applied in some part connectors. This usually isn't done by service unless it's TSB'ed.

The plug manufacturers like to see 12-15' lbs, but the yield is much higher. I think it's around 35- 40' lbs (just a guess). The higher you go, the more you stress the spark plugs integrity. The seal and porcelain. To use Anti-seize on a four or five thread plug chamber that uses a tapered seal vs compression can have some adverse effects for sure. One, there is a lot of plug thread reveal and that anti-seize will be pumped out by the exhaust stroke coating the O2 sensors. It may get burned off eventually, but most likely,- not without a hick-up or two. At 29' lbs with anti-seize in a 4 thread, your pushing yield and stressing the plugs. Spark plugs do fracture in a way that's hard to detect. Add in 30% and your close to 38' lbs. It's a gamble installing them with that procedure. No, they probably won't blow out, but there's other effects to be considered that should be. Specially w/boost. It's different with taller thread chambers.