Loctite on Spark Plugs

Old Jan 13, 2004 | 05:09 PM
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ncfirefighter1's Avatar
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Question Loctite on Spark Plugs

Has anyone put medium strength loctite on spark plugs trying to stop the plug blow out problem?
 
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Old Jan 13, 2004 | 05:33 PM
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Thats an idea.I'm a pipefitter by trade and when we have problem threads on pipe or want a 100% leakproof/high pressure joint we use a product called "XPANDO". Its a powder that you add water to,to make a liquid type paste.But,you have to work with it quick or it will dry up! This stuff is like Superman and Batman in a can! To break the threads loose you have to hammer them! Anyway,if you torque the plugs to the factory specs they should be ok. BTW,I think they improved the spark plug holes on your year motor!
 
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Old Jan 13, 2004 | 05:34 PM
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I have not. Anti-seize is what is normally used. I do not know if medium loctite is even heat-rated for an application like that. We are alway's looking for test rats to try something new and let us know if it hurts. Hurt me, beat me, make me write bad checks...
 
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Old Jan 13, 2004 | 08:36 PM
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Originally posted by BlueOvalFitter
BTW,I think they improved the spark plug holes on your year motor!
Is that true? I thought it was with the new 2004 model. Can anyone confirm that they made the change in 2002? How would I find out if mine has the new improved version?
 
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Old Jan 14, 2004 | 11:09 AM
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When you go remove the plugs how will you clean off the excess loctite from the threads in the head? Remember the plugs sit deep. torque to spec. in order to not blow a plug out of the head.
 
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Old Jan 14, 2004 | 11:41 AM
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Originally posted by Rikster
Is that true? I thought it was with the new 2004 model. Can anyone confirm that they made the change in 2002? How would I find out if mine has the new improved version?
I think that the new heads were made in dec 2002. Not sure when they started making there way on to the production run trucks though.
Jes
 
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Old Jan 14, 2004 | 12:58 PM
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Loctite and most epoxy breaks down at about 400 F.
 
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