Changed my plugs after 38k (PICS) - Toyota Yaris Forums

Bluevitz-rs · 04-17-2011, 08:25 AM

hopefully you used some sort of anti-seize on the threads, or come next time you change them they might be "welded" to the head. The metal in the spark plugs tends to react with the aluminum in the head causing them to bond together.

auxmike · 04-17-2011, 01:33 PM

Quote:

Originally Posted by Bluevitz-rs

hopefully you used some sort of anti-seize on the threads, or come next time you change them they might be "welded" to the head. The metal in the spark plugs tends to react with the aluminum in the head causing them to bond together.

I put a little Mobil 1 on the threads before installing. I'm sure there's still plenty of that cosmoline stuff stuck inside the hole threads.

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04-17-2011, 08:25 AM	#1
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	hopefully you used some sort of anti-seize on the threads, or come next time you change them they might be "welded" to the head. The metal in the spark plugs tends to react with the aluminum in the head causing them to bond together.