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Old 03-20-2013, 03:25 PM   #1
Geoff Peace
 
Drives: Yaris 1.33 litre 2011
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Spark plug torque

Does anyone know the correct torque for the spark plugs on the new Yaris. 1.33 litre. 1NR-FE engine? I have the information the plugs are ILKAR7B11. (NGK). and the torque is 15 - 20 Nm. This seems high to me, can anyone supply the correct information please?
Regards Geoff Peace.
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Old 03-20-2013, 03:28 PM   #2
Yarflana
 
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I would not know why it would be different than a 2007/2008. I just changed mine and I think the ft/lb torque is 22. I pulled the TSB from the Micro Image forum DIY pages. You should be able to Google it as well right?
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Old 03-20-2013, 03:29 PM   #3
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http://www.yarisworld.com/forums/showthread.php?t=36527

You may recognize yourself here:).
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Old 03-21-2013, 01:35 PM   #4
Geoff Peace
 
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Quote:
Originally Posted by Yarflana View Post
Oh yes! I quite forgot about that. Must be old age! However I never did get a definite answer as the information given was for the 16mm.plug, the new Yaris has 14mm. The torque I have been given is 15 - 20 Nm. which seems high especially as the plugs have an anti-seize coating to prevent corrosion. Just trying to get the correct information to prevent damage by overtightening.
Regards Geoff Peace.
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Old 03-21-2013, 02:00 PM   #5
CTScott
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38. INSTALL SPARK PLUG


(a) Using a 14 mm spark plug wrench, install the 4 spark plugs.


Torque: 20 N•m (204 kgf•cm, 15ft•lbf)
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Old 03-22-2013, 02:44 PM   #6
Geoff Peace
 
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Quote:
Originally Posted by CTScott View Post
38. INSTALL SPARK PLUG


(a) Using a 14 mm spark plug wrench, install the 4 spark plugs.


Torque: 20 Nm (204 kgfcm, 15ftlbf)
Thankyou C.T. If anyone is to be relied upon for the correct information it is your good self. Thankyou again.
Regards Geoff Peace.
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Old 08-16-2014, 07:21 PM   #7
bad
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I have an '08 hatch back. 1.5 liter. My spark plugs don't fit in a 14 or 15 mm socket. They fit in a 16 mm socket.
_
I could be wrong, it could be the burnt carbon, but I think it is taking me 22 ft*lbs to take the old ones off.
_
I'm going with 15 ft*lbs of torque. Is 15 ft*lbs incorrect?
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Does the addition of an extension have to be taken into account when calculating the torque?
_
there is this that I found too:
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http://www.autolite.com/media/11853/torquespecs.pdf
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It only gives specs for 14 or 17 mm. Is this a sign that even though mine don't fit in a 14 mm socket, that they are called that anyway?
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Last edited by bad; 08-16-2014 at 07:24 PM. Reason: added link
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Old 08-16-2014, 08:06 PM   #8
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Honestly ur putting way to much thought in to it ...just change ur plugs ,use antsieze and snug them up that's it

sent from my S4 on Mars
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Old 08-16-2014, 08:36 PM   #9
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Thanks, I did use antiseize btw. I'm still curious to any other answers though.
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Old 08-18-2014, 02:24 AM   #10
268i
 
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apparently NGK Reccomend AGAINST the use of anti-seize provided you don't leave them for 150K+ miles. Nonetheless I used it when replacing my stock ones with NGK Iridium IX plugs..
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