For the anti-seize does it need to be Nickel based or can it be the normal anti-seize spec'd for aluminum engines?

 

also got to be careful not to put too much anti seize on..

 

I used the Nickel one. The TSB says to use the motorcraft anti seize which has a temp rating of 2400 or something. So you should use something close to that.

 

The Ford stuff is rated up to 2600 F.

 

Ok I read the entire thread. Let me see if I have this straight:

I have 20+k on my car and I'm still under warranty. I should replace the stock plugs asap per the TSB with Champion 7989s(everyone is in agreement that those are ok) and I should use a light coat of anti-seize in the location specified in the TSB and gap them at .054? You guys are scaring me so I'll be very careful and use the Ford carb cleaner and anti-seize.

Thanks to all for this information.

 

I gaped mine to .045. The acceptable range for the stockers are .04-.05.

 

I would agree with this. The gap will only get bigger with time. I also have about 23K miles on my car and all this talk about plug breakage has me worried. But I was thinking of going with the Brisk plug. So I will pose this question. If money is not a consideration...what is the best one piece plug for us to use? If it is Champion than that is what I will go with.
Scott

 

I am running the Champions gaped at .045 and Motorcraft Anti Sieze with no problems. I had 5K on my plugs when I pulled them. Just do not weant the M/c plugs breaking off in the heads.

 

I am running the Champions gaped at .050 exactly how the M/C pulled out at 22K were gaped - car run perfect. no problems at all and I do not have nightmares with braking plugs

 

If anyone finds a decent price on the Champion spark plugs (#7989) please post it. Both Rock Auto and Summit have now increased their prices to $13 -$16 each and I saw one wholesale sight where their cost is about $4.50 each.

 

 

Summit racing has them for $12.98. I just installed them after the fun with the Motorcraft plugs.

No complaints!

 

Did you notice any of the manufacturing "variances" that have been reported? How many miles with them so far?

 

I followed the TSB to the letter. The second plug I tried snapped. I did take it to my Ford dealer , their trained Tech broke off 5 more. 38K miles on the clock.

Now running Champions gapped at .044" and couldn't be happier. I have over 5K miles on the Champions and car runs better than ever.

 

I've been running the Champion #7989 plugs for several months now. I set a .045 gap, put a very light coat 2,600 degree high-temp nickle anti-seize on the upper 1/3 of the grounding shield and a very light coat on the threads as well. They car runs great with them, not a single problem. Out of curiosity I took out a couple of the Champion plugs 2 weeks ago and they came out very easy and looked fine with no build-up on the grounding shield.

 

anyone know the champion part number for the feb 08 and up plugs?

 

From what I understand, they changed the head design on the 4.6 in Nov. 07 and it now has a traditional 1-piece plug (different size plug than on the pre-Nov 07 heads). I don't think you need to change yours out.

 

sweet! ill still need one step colder plugs for nitrous but at least i can use factory style plugs. good stuff

 

Probably would be smart to pull one and see for yourself. You'll know because the new style is not an HT plug.

 

hey guys are the new autolite HT1 plugs one piece????

my dad bought 8 of them on accident, and doesnt need them, so if they are 1 piece than he will give them to me.....


he said they are 1 piece but i dont think he knows the diff.....

i need to know asap before he returns them...

lol