anyone know the spark plug torque specs? im going to be changing them today along with brembo/PF.

 

turn it 1/4-1/2 turn after the metal gasket contacts the surface of the head

 

2004 Shop Manual here, sry couldn't be a help. I know what you mean, I got to have my work torqued by factory specs. Try http://techinfo.toyota.com/

 

I thought there weren't any torque specs. Just start the plugs off by hand and then tighten then down by hand until you need a wrench. This is done to make sure you do not cross thread them. And when you use a spark plug socket and extension, just do not put too much effort into it. Also, use some anti-seize stuff on the thread of the plugs for easier removal.

 

I seem to remember 12-15ft-lbs

 

18 lb-ft on the 97 3.4

Gadget

 

I'm guessing it would be the same for a my 98 Tacoma 3.4 right?

 

What about torque specs for all the bolts that need to be checked during regular maintance? Don't rememeber what ones right now, I don't have the manual. But I think drive shaft bolts is one group.

 

This is a little non yota related but anyway. I was changing the plugs on my last motorcycle a 2000 Kawasaki ZRX 1100 with new NGK's.. Well one of the plugs either had a crack right above the threads or was made funny. I turned it in by hand and using a 4" ratchet gave it just a little turn to smash the seal tight, well it snapped off in the engine! Motorcycle plugs usually are WAY down in the head! I was able to take my gas tank off and using a long smaller flat screw driver tap it down into the threads and back them out but was afraid that I was screwed! This leads me to another story, a buddy over tightened a plug in his Celica, the engine was still hot and for some un-known reason he cranked the plugs down and stripped the threads out! Im not sure if this was from a previous accidental cross thread or a Heli-Coil that pulled out but regardless it sucked! The moral is don’t over tighten your plugs you do not need to, make sure they are seated snugly and give them a slight turn for good measure! Just my .02

 

Yes, it is the same.

 

You should also use anti-sieze on the plug threads, and conductive grease in the plug boots, to prevent them from getting baked on.

 

Oldie, but a goodie.

I did my 2002 4runner spark plugs last night and torqued them to 13ft/lbs per the service manual. This seemed like an awful lot of torque for spark plugs in an aluminum head. Has anyone had any issues with this torque?

Edit: just put in a new set of plugs, I torqued them to 117in-lb, which is an adjusted lubed-torque (75%) to account for the anti-sieze I put on the threads.

 

Wrong. See post below...

13 ft-lbs is the standard spark plug torque for ALL Toyota aluminum head engines.

I don't use a torque wrench on spark plugs though, never have. That's a rookie move in my book. I've installed dozens of them that way without any issues, so I'm pretty sure by now I've got "a feel" for how tight they should be. A torque wrench just seems like a waste of time to me...just remember..they ain't gotta be super-tight..but too loose ain't no good niether. 13 ft-lbs ain't squat really...

 

snug then a 1/4 turn ? thats what i been doing