Spark plug torque spec?

[jdub]

With spark plugs yeah. Anything on the head of this car, you beter tq correctly except the head bolts/studs. Always 75+ with those, factory, or the preferred ARPs.

Close...ARP head bolts = 75 ft/lbs...technique for the factory head bolts is the same.
ARP spec is 81 ft/lbs for studs. All are using moly for lube.


TRSM torque spec for the spark plugs is 13 ft/lbs.
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?Section=IG&Page=8

(Can't believe no one looked it up yet :3d_frown: )

 

[3p141592654]

I always get irritated when I can't find the torque spec for a particular fastener. Examples are the A/C bracket, and the turbo water pipe-to-thermostat housing.

It would be interesting to see what torque consistency the 'do it by feel' guys achieve.

 

[RacerXJ220]

Oh no, the fastener debate should remain dead, this is about spark plugs!

 

[Big Wang Bandit]

http://www.ngk.de/Tightening_torques_for_spark_p.652.0.html

I'd rather listen to an NGK engineer than you douchebags.

:rofl:

 

[QWIKSTRIKE]

I always get irritated when I can't find the torque spec for a particular fastener. Examples are the A/C bracket, and the turbo water pipe-to-thermostat housing.

It would be interesting to see what torque consistency the 'do it by feel' guys achieve.

I have been doing it this way since 1994, and nothing ever happened because I didnt use a mfg torque spec on he AC bracket, or the spark plugs, or the coil packs, or the coil pack cover, or the water housing. Lets get real if you are inexperienced "mechanicaly challeneged" at assembling the parts, and need a torque spec go ahead. It definitely won't hurt to do so, however you don't need a F/N torque wrench on every part that I mentioned unless you really are a newb mechanic. A good mechanic can assemble those parts, and have no problems what so ever. You also have to be an idiot to tighten the plugs until they strip, and if you do you shouldnt be working on the damn car any way!:aigo:

 

[SySt]

Close...ARP head bolts = 75 ft/lbs...technique for the factory head bolts is the same.
ARP spec is 81 ft/lbs for studs. All are using moly for lube.


TRSM torque spec for the spark plugs is 13 ft/lbs.
http://www.cygnusx1.net/supra/Library/TSRM/MK3/manual.aspx?Section=IG&Page=8

(Can't believe no one looked it up yet :3d_frown: )

I can't beleive you didn't see the 7th post on the first page where I looked up and presented the 13 lb/ft torque specification on the spark plugs.

And for the whole discussion. I fully understand the engineering aspect of torqueing a fastener properly. However from my experience and the experience of any professional mechanic I have met, it does not make a difference when not torqueing a fastener to spec. Of course, as I have been saying, aside from critical bolts.

 

[QWIKSTRIKE]

I can't beleive you didn't see the 7th post on the first page where I looked up and presented the 13 lb/ft torque specification on the spark plugs.

And for the whole discussion. I fully understand the engineering aspect of torqueing a fastener properly. However from my experience and the experience of any professional mechanic I have met, it does not make a difference when not torqueing a fastener to spec. Of course, as I have been saying, aside from critical bolts.

Agreed...but do as you feel the need. We are seasoned enough to know how to torque to the feel, but others may not be so gifted. In that case by all means follow the book.:biglaugh: