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Torquing spark plugs.

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10 replies to this topic

#1
EV0300

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The manual say 25nm but only my micrometer goes 25nm is there a trick to adapt a sparkplug socket to 1/4 drive?

#2
Ian91

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1 ugga Dugga on the impact gun is 25nm...

#3
vr401

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Always did them by hand.
Lancer Evolution 7 GSR '01

#4
VIN18M

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Turn them by hand, then half rotation with the ratchet

#5
evo-gsr

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Same. Dunno why they would need to be torqued?
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#6
evo-gsr

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1 ugga Dugga on the impact gun is 25nm...


What if you get a little trigger happy.....?
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#7
EV0300

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i usually do it by hand myself but the way the box says to do it feels really tight and i'd hate to strip the head threads.



#8
bazeng

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The plugs need the correct torque to work as designed. It's all about heat dissipation to the head. Not enough torque = not enough crush and potentially contact surface area not as per original design.

I'm a bit fussy as I've always worked in the engineering area and everything is somewhat needed to be controlled and quality checked.

Check out the NGK faq page. All explained there.

#9
EV0300

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cheers Baz will do



#10
bazeng

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Most cases people will get a feel for it with experience but for the extra effort of a minute or two, measuring the torque will give you tha piece of mind that it's not too tight or too loose.. As Goldie locks would say.. Just right...

#11
rigby

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I've always just done mine up until they started to feel tight and couldn't be turned with a lazy wrist movement. As long as they are pretty firmly in without applying a lot of pressure you'll be right


An expert is a man who tells you a simple thing in a confused way in such a fashion as to make you think the confusion is your own fault.


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