HMSPORT said:I worked at Ford dealers for over 13 years. I have never seen a TSB for using lock-tite on spark plugs. Do Not Use It!
The problem on the earlier years 5.4's was a machining problem with the plug threads. Basically, there wasn't enough threads for the plug...hence blowing out the plugs and pulling the threads with it. Under warranteee, we would replace the head. If it was a cp job, the cutomer had the choice of purchasing a new head or we would send the org. out and have it heli-coiled.
MikeZ28 can you give me the SSM #, I can look it up at the dealership.
As for the anti-seize, if you use it make sure that you do not put to much on. If any gets into the combustion chamber or on the eletrode, it will cause detonation. Just my .02 to tell help everyone.
RavenGT said:No, it was because the pre 03 2V heads were a crappy design, when it came to the plug threads. They were designed with only 4 threads around the plug, and in the case of the Lightnings, the increased cylinder pressure from the positive displacement blowers, were forcing the plugs to blow out, and take the threads with them.
The Loctite idea is not only assinine, but not true. The official fix from Ford was to helicoil the head and send the customer on their way. You add hightemp Loctite to a soft metal like aluminum and you are not a question of will it happen again, its a matter of when it will happen again.
Loctite cures the steel plug to the soft aluminum head, and the head will be the first metal to give in the case of failure.
I don't know Mr.Z28, but I know that he will NEVER put a wrench, or tube of loctite to my Lightning.
Joe
MikeZ28 said:personal insults in this thread is uncalled for. if you don't like the idea don't use it. i do it on mine. i do it on cobras and lightings. and none of them have blown out plugs.
I'm sorry was there something having to do with MUSTANG TECH in your post there? Didn't THINK so...rjstaaf said:Hmmm what comes around goes around huh. Seems you like to dish it out but, can't take it. Maybe you should follow your own advice.
Kilgore Trout said:I'm sorry was there something having to do with MUSTANG TECH in your post there? Didn't THINK so...
BAN!
MikeZ28 said:if you guys don't want too do it to your car thats fine. use anti seize on a motor that has a problem with plugs rattling loose and does not have problems with plugs seizing in the head.
n0v8or said:I don't think you will find a Ford TSB, nor will one be issued. If Ford were to publish an opinion, it would be considered "official" and open them to future liability. This doesn't stop them from privately passing the word to the "front line" techs.
seems like this is directed to what i told you happened to my plug/head, and you seem hellbent on making me out to be arguing with you, so why dont you tell me what you think caused my plug to come out of my head and break the coil in the process???Mustang92 said:Strickly your opinion and defintely not fact. Fact is the earlier heads have too few threads for the spark plug and get they blown out if the threads get weakened for any reason. Just because you find a plug sitting on your engine with the coil pack attached does mean it came unthreaded. To make that kind of assumption and to tell people that they should use loctite on an already weak area of the engine is blatently careless.
Sure is amazing how in most cases where the plug is blown out it is still sitting inside the coil boot...the same boot that supposedly is allowing it to rotate ever so slowly as it backs out.
Bill
MikeZ28 said:your 100 percent wrong.. ford does not want a helicoil repair done for this problem. they said it causes detonation problems. they want the head repalced.
i will be back latterr tonight and post the SSM number and article showing you are wrong on the helicoil repair.
i dont wanna speak for someone else here, but i think hes saying you loctite the plugs before any problem ever occurs. if a problem does occur, then you DONT use a helicoil and you replace the head.RavenGT said:Make up your freakin mind. I thought you said that Loctite was the approved method, not replacement. And I am not 100% wrong, because the dealership did helicoil the heads in question from my previous reply.
You come back with the SSM, or the TSB or whatever freakin acromyn you want to use, for the LOCTITE OF THE PLUG THREADS. Till then, you already proved you're wrong with your above post.
Either way, there is no freakin way in hell you will ever touch my Lightning with a wrench or tube of Loctite. Your advice is dangerous, plain and simple.
joe
SMRcalidiv said:... so why dont you tell me what you think caused my plug to come out of my head and break the coil in the process???
SMRcalidiv said:i dont wanna speak for someone else here, but i think hes saying you loctite the plugs before any problem ever occurs. if a problem does occur, then you DONT use a helicoil and you replace the head.
i know youre not arguing, we're cool...i agree he says to loctite the plugs "pre-op", or better yet, pre-f'up. but i dont think hes saying that if a plug gets shot out that loctite will fix it then.RavenGT said:I don't want to sound like I am arguing with you, because I am not. But his advice was to Loctite the plugs in all mod motor heads, regardless of whether it is pre- or post-pop. That is BAD ADVICE.
joe
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?