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Correct Torque Spec for Spark Plugs

11K views 8 replies 6 participants last post by  Them Witches  
#1 ·
Hey guys,

I know this topic has been mentioned quite a number of times, but I haven't been able to find a clear answer and I didn't want to revive dead threads so I figured I'd ask again in a fresh post.

What is the correct torque spec for the spark plugs of the RSX? Specifically, the RSX type-S (2002, k20a2 motor), if it matters. Not sure if the k20a3 sparkplugs have different torque specs.

I will be installing the NGK IFR7G11KS (NGK 7746 Laser Iridium).

I've read this post from the DIY sub-forum, which states to torque the spark plugs to 17 ft lbs.

Other sources I've read online lists torque specs from a range of 13 - 20 ft lbs.

The shop manual initially states the specified torque to be 18 ft lbs for the listed spark plugs, then proceeds to give an exception for the exact same spark plugs listed earlier to 13 ft lbs.... I don't want to over tighten and strip/cause problems with the aluminum head... or have it loose and create other problems... Can anyone confirm the correct torque spec?
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Also, the shop manual recommends some anti-seize on the plug threads,whereas I think NGK does not recommend putting anti-seize. Which recommendation should I follow?
 
Discussion starter · #3 ·
Hey, thanks for the reply.

So I should be going for about 18 ft lbs? (probably 17 ft lbs if I apply some anti-seize?

And noted about the old thread vs creating new topics.
 
Discussion starter · #5 ·
17.8ft*lbs since you aint gonna stop asking till it is said. I dont torque anything just do it all by feel but my feel be pretty damn accurate. Correction I torque lug nuts to 80ft*lbs everytime.
I ended up doing hand tight + quarter turn, probably a little less than 17 ft lbs, with some anti-seize rubbed onto the threads
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