quick question, loctite on spark plugs

OleYellarGT · May 25, 2005

which one? Trying to keep from buying a new head....

SilverGTV8 · May 25, 2005

NO LOCKTITE!!!!!!

A tiny big of antiseize on cold heads and everything should be good.

OleYellarGT · May 25, 2005

alright, was just wondering....seeing posts on how the plugs are backing out of the threads, blowing out, taking the threads with them. The fix has been said to be loctite....I was going to use antiseize

mrvax · May 25, 2005

NO LOCKTITE!!!!!! Agreed!
In addition, use an inch pound torque wrench to tighten the plugs. After a day of using the car, recheck them.

SilverGTV8 · May 25, 2005

It has to do with a possible head flaw. Loctite will just keep the plug from unthreading, not pulling out the threads.

300bhp/ton · May 25, 2005

OleYellarGT said:
which one? Trying to keep from buying a new head....

PUT THE SPANNERS DOWN - AND WALK AWAY FROM THE CAR!

OleYellarGT · May 25, 2005

ahhhh, ok.....feeling much better now. How much torque (in/lbs)?

Kilgore Trout · May 25, 2005

MikeZ28 is a Ford tech and he said that lock tite SHOULD BE USED...

OleYellarGT · May 25, 2005

so then my question remains. Which one?

Kilgore Trout · May 25, 2005

I have a question also, I used light anti seize. Will I have to wipe it off and apply lock tite? Does anti seize prevent lock tite from working? What color lock tite???

Mike97gt · May 25, 2005

SilverGTV8 said:
NO LOCKTITE!!!!!!

A tiny big of antiseize on cold heads and everything should be good.

YES locktite. the problem is not with the plugs seizing in the problem is with them blowing out of the head.. this is already a tsb and recomended on PDI in the lighting.

locktite your plugs

OleYellarGT · May 25, 2005

Ok now that we have the issue resolved on using loctite....WHICH ONE?? or should I say color?

Mike97gt · May 25, 2005

Kilgore Trout said:
MikeZ28 is a Ford tech and he said that lock tite SHOULD BE USED...

i do this now too ALL customer 4.6's and 5.4's that i do plugs on. it may be a little harder too get the plugs out the next time but they will stay in the head.

somewhat on topic.. i ran a lighting once a few months ago on the street. and his motor was ticking real loud when we ran. we were side by side and i got out of the gas and motioned for him too pull over. he did and i told him about the noise i heard. he said he will look into it and asked if i wanted too run again??? WTF i just told him his plug was going too blow out of the head any minute and he wants too run. of course i said no. anyways i used too see that lighting all the time on the strip we cruise now i don't see it anymore. truck was out of warrenty with a young kid driving. i bet he can't afford the repair now.

Mike97gt · May 25, 2005

OleYellarGT said:
Ok now that we have the issue resolved on using loctite....WHICH ONE?? or should I say color?

use the blue removeable locktite. the red will come apart too but it's much much harder.

Kilgore Trout · May 25, 2005

lock tite + anti seize = BAD???

OleYellarGT · May 25, 2005

Thanks Mike....will change plugs next week and will be using loctite.

Mike97gt · May 25, 2005

Kilgore Trout said:
lock tite + anti seize = BAD???

locktie and antiseize counter act each other. no anti seize on our motors. on a old iron head 5.0 use anti seize.

Kilgore Trout · May 25, 2005

I already used anti seize last time I changed plugs

Mike97gt · May 25, 2005

Kilgore Trout said:
I already used anti seize last time I changed plugs

well you can take the plugs out and clean them off with some brake clean. dry them off put blue locktite on then reinstall.

ModMotorRacer · May 25, 2005

MikeZ28 said:
YES locktite. the problem is not with the plugs seizing in the problem is with them blowing out of the head.. this is already a tsb and recomended on PDI in the lighting.

locktite your plugs

Are you serious? tell me which dealership you work at so i can get my plugs changed and then new heads after you ruin mine. You are EXACTLY why I don't let Ford techs touch my car. Anybody who is reading this thread....DO NOT PUT LOCTITE ON YOUR THREADS!!!!

Adam

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