Preferred anti-seize compound for spark plugs? - Toyota Yaris Forums

RMcG · 09-02-2021, 03:14 AM

Hello everybody,

I replaced my 4 spark plugs today. The NGK plugs that had been in the vehicle since I bought it new 13 years & 111K miles ago came out without a problem. I had driven the car about 4 miles though, so the engine was hot. Pictures of the old spark plugs are attached. They look pretty good, there is some carbon there, but no oil or wetness. Because the old spark plugs came out so easily, I decided not to use any anti-seize, even in small amounts.

I had obtained a "loaner" torque wrench under an auto parts store chain loaner program, but the wrench did not work. Apparently the ratchet mechanism had been stripped, so all it did was spin in when you tried to turn in the tightening direction.

So I used my "feel technique" using my battery operated bathroom scale: my ratchet wrench handle is about 6.5 " long, so I tried to feel what 26 lbs of pressure on the bathroom scale with my fingers felt like (in order to deliver about 13 ft lbs of torque). Anyway, I am glad I had this alternative method of applying torque. The car seems to be running OK.

Thanks again to everybody. A local car repair place here told me they charge $150 USD to change the spark plugs, so I figure I saved about $115 by doing it myself.

R.

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09-02-2021, 03:14 AM	#1
RMcG Drives: Yaris manufactured after 2007 Join Date: Nov 2010 Location: North America Posts: 250	Hello everybody, I replaced my 4 spark plugs today. The NGK plugs that had been in the vehicle since I bought it new 13 years & 111K miles ago came out without a problem. I had driven the car about 4 miles though, so the engine was hot. Pictures of the old spark plugs are attached. They look pretty good, there is some carbon there, but no oil or wetness. Because the old spark plugs came out so easily, I decided not to use any anti-seize, even in small amounts. I had obtained a "loaner" torque wrench under an auto parts store chain loaner program, but the wrench did not work. Apparently the ratchet mechanism had been stripped, so all it did was spin in when you tried to turn in the tightening direction. So I used my "feel technique" using my battery operated bathroom scale: my ratchet wrench handle is about 6.5 " long, so I tried to feel what 26 lbs of pressure on the bathroom scale with my fingers felt like (in order to deliver about 13 ft lbs of torque). Anyway, I am glad I had this alternative method of applying torque. The car seems to be running OK. Thanks again to everybody. A local car repair place here told me they charge $150 USD to change the spark plugs, so I figure I saved about $115 by doing it myself. R. OldSparkPlugs1.jpg OldSparkPlugs2.jpg OldSparkPlugs3.jpg