Seized Spark Plug

texadelphia said:
So what I'm hearing is take out all the plugs I just installed, put a dab of anti-seize on them, and torque them to 11 ft-lbs.
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Nope. You do as your want. We just say what you we did. I would do as you wish..If they are in and snug your good. :)

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texadelphia said:
So what I'm hearing is take out all the plugs I just installed, put a dab of anti-seize on them, and torque them to 11 ft-lbs.
Click to expand...
You certainly can, although I don't believe it to be absolutely necessary. Nor have I ever applied anti seize to mine before. Just be careful when torquing the plugs and you should be just fine.

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alumarine said:
I'd start with your plan to soak it in penetrating oil and then work it very slightly back and forth.

Spray, wait and repeat.

Just went through this on my town car. I did it with the motor cold.
It has aluminum heads.
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☝️is proper way to remove In warm air temps.
Under 32 degree air temp warm vehicles for couple min , turn it off of course then follow above
 
Philz said:
☝️is proper way to remove In warm air temps.
Under 32 degree air temp warm vehicles for couple min , turn it off of course then follow above
Click to expand...

Well I ran an errand, got home, let it sit for an hour and tried to take it out. Still only turned 1-2 rotations and then froze up again. Going to get some liquid wrench on it tonight and let it sit overnight.
 
brillo_76 said:
I been anti seizing them for years.. I just tighten them down and that is it..:-)
No torquing required at all. Maybe the anti seize keeps my threads clean..

This is just how I been doing it for the last 33 years. You can do it however you see it fit for you. No problemo :-)
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My method as well. I replace the plugs every 25,000 miles (NGK BKR5EKB-11). Anti-seize and hand tighten quite snuggly once I feel the crush washer make contact. No issue in 21+ years & 517,800 miles. :)


Andreas
 
Did some more digging. Denso's website says torque spec is 15-22 ft-lb in an aluminum head or to do the 1/4-1/2 turn past contact if you don't have a torque wrench. FSM says 13 ft-lb. Denso also doesn't say to not use anti-seize like NGK. They just say to reduce torque spec by 30% if using anti-seize. So I think I might pull them all back out once I get this stuck one out, put a light coating of copper anti-seize on them, and reinstall to 9 ft-lb (109 in-lb). Wish I would have done all this digging before I installed them the first time and crushed all the washers but it probably doesn't matter that much.

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texadelphia said:
Did some more digging. Denso's website says torque spec is 15-22 ft-lb in an aluminum head or to do the 1/4-1/2 turn past contact if you don't have a torque wrench. FSM says 13 ft-lb. Denso also doesn't say to not use anti-seize like NGK. They just say to reduce torque spec by 30% if using anti-seize. So I think I might pull them all back out once I get this stuck one out, put a light coating of copper anti-seize on them, and reinstall to 9 ft-lb (109 in-lb). Wish I would have done all this digging before I installed them the first time and crushed all the washers but it probably doesn't matter that much.

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Click to expand...
This is all a part of the learning experience. And from this point forward you'll always know what to do and can even lend assistance to others doing it. All a part of the game!

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Got it out! Got back from a drive and gave it another shot. It didn't come out easily and I was holding my breath the while time but I just kept working it back and forth with quarter turns.

Hopefully about 45 minutes with the hood up is long enough for it to cool back down before I install the new one because I need to head back out in a bit.

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JoeT4R said:
This is all a part of the learning experience. And from this point forward you'll always know what to do and can even lend assistance to others doing it. All a part of the game!

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Click to expand...
Funny thing is I've been working on cars casually for like 25 years and just never ran into a stuck plug before.

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texadelphia said:
Funny thing is I've been working on cars casually for like 25 years and just never ran into a stuck plug before.

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Just wait till you come across a cross threaded spark plug. Then you really have fun. :(

Is it only one spark plug that's snug or several of them?

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It was the entire passenger bank. The driver side came out easily but interestingly enough, that side also looked like the valve cover gasket had been replaced while the passenger side looked original.

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