Oil on Spark Plug threads...Switch to Iridium?
Oil on Spark Plug threads...Switch to Iridium?
I just swapped out my NGK platinums for some NGK iridiums...
Has anyone else used iridiums? What are your thoughts? It feels to me that I have less torque in the low end now that I have iridiums (vs. the platinum NGKs). I am considering going back to double platinum...
Also, I have read that oil on the threads can be caused by leaking valve seals. I am not sure how to replace these. Can anyone help?
Has anyone else used iridiums? What are your thoughts? It feels to me that I have less torque in the low end now that I have iridiums (vs. the platinum NGKs). I am considering going back to double platinum...
Also, I have read that oil on the threads can be caused by leaking valve seals. I am not sure how to replace these. Can anyone help?
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Joined: Dec 2005
Posts: 33
I just put in the NGK iridiums too, had the platinums before and i've noticed a big change thru out. The car idles better and is more responsive so personally i'd stay with the iridiums.
As for the oil on the threads its caused by leaking valve seals, havn't changed those on a max but different cars and usually u just unbolt the valve cover and the seals are on the inside and there rubber rings that sit at the bottom of the spark plug shaft thingie.( can't think of the right name for it) Hope this helps.
As for the oil on the threads its caused by leaking valve seals, havn't changed those on a max but different cars and usually u just unbolt the valve cover and the seals are on the inside and there rubber rings that sit at the bottom of the spark plug shaft thingie.( can't think of the right name for it) Hope this helps.
Originally Posted by nutty dredd
I just put in the NGK iridiums too, had the platinums before and i've noticed a big change thru out. The car idles better and is more responsive so personally i'd stay with the iridiums.
As for the oil on the threads its caused by leaking valve seals, havn't changed those on a max but different cars and usually u just unbolt the valve cover and the seals are on the inside and there rubber rings that sit at the bottom of the spark plug shaft thingie.( can't think of the right name for it) Hope this helps.
As for the oil on the threads its caused by leaking valve seals, havn't changed those on a max but different cars and usually u just unbolt the valve cover and the seals are on the inside and there rubber rings that sit at the bottom of the spark plug shaft thingie.( can't think of the right name for it) Hope this helps.
Anyone have a picture/writeup about changing the seals? Maybe even an explanation of how to remove the valve cover to get to the seals...???
I think I will give the Irids a little longer...
Originally Posted by zeeman
i had plats b4. I noticed no change whatso ever after chaning to iridiums.
Your description parallels my experience. As I said before, I even feel like I LOST torque...
A few more things to check, I suppose...
Originally Posted by MDeezy
I like coppers too. Cheap and perform just as good as the plats for a lot cheaper.
also valve seals on the oily sparks. the fsm can give you a good write up on getting the job done.
also valve seals on the oily sparks. the fsm can give you a good write up on getting the job done.
I'll check the FSM. Anybody done this recently? What kind of time commitment are we looking at (not a novice)? Tools needed?
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