I have a 2014 F Type S. I am looking for torque specs for the lug nuts. I've looked in my owners manual and generally online, can't seem to find them anywhere. Anyone have that info?

Thanks, Henry

 

92 ft-lb.

 

Thanks!

 

I've torqued up at least 1,000 lug nuts in my life, I've never used a torque wrench and instead I have always used the "two grunts and a fart" method, and I have never rounded a nut or snapped a lug (yet!). You quickly get the feel on each new car for when each lug nut is done up "just right". On the other hand I have had three snapped lugs from "mechanics" over-tightening lug nuts with an air gun.

 

 

I'm an experienced mechanic and still use a torque wrench - testing has found that (in general) people's "butt dyno" as it relates to fastener torque is not very accurate.....to say the least.

I've done thousands of lug nuts with nothing but a wheel wrench and my arms idea of "gudintite" but I realize a torque wrench is a much better way

JMHO

Dave

 

+1. I always wrap up the job with a torque wrench.

 

 

I use the German torque spec of "gutentight"










jk. I use a torque wrench

 

As it seems the majority opinion so far is "you should use a torque wrench" I just did a little test with my rarely used torque wrench, and guess what?
19 of the 20 lug nuts were smack on 125 Nm, and one was on 120 Nm (it's now on 125).
Seems my old fashioned "it feels right" method wasn't too shabby after all!

 

 

remember that measuring breakaway torque on a fastened lug is not the same as measuring rotational torque when in the act of fastening. The former doesn't account for the friction that has to be overcome to turn the lug.

 

Far better than the average IME.

Cheers,
Dave

 

I just bought a 1/2" torque wrench, what socket do I need?

 

19mm (at least my original lug nuts are 19mm)

 

Actually I emailed my service advisor and he finally got back to me. He said they are 21mm. I have 20" rims maybe that's why?
Anyway I'll pick up a socket tomorrow and see if it fits.

 

To the best of my knowledge all OEM Jag wheel nuts, including the F-Type, are/have been 19 mm for many many years.
Either your service advisor has no clues or you have after-market wheel nuts.
Before you splash out on an expensive socket get one of those cheap cross-braces that have a different size socket on each corner - usually 17 mm, 19 mm, 21 mm and 13/16", and see which one fits.

 

 

Determining which size socket your lug nuts take shouldn't be a difficult question to answer. If you stop in at most any tire store or even a high end car dealership (M/B, BMW, Lexus, Acura, etc>) and ask them if they could determine the lug nut size, most any of them would be happy to help you out....at least that's my experience on simpler questions, which this surely is. As far as torquing your wheel lug nuts, you would be a complete fool if you didn't comply with the manufacturer's instructions. Regardless of what anyone might say, the gut check method is poor at best. You risk warping the brake rotors with too much torque (big bucks on that one) and if you ever do have a flat in a rural area, maybe no cell phone service) and have to change that flat tire out with your spare, most manufacturers provide the wimpiest lug wrench "want to be" that was ever created....simply stated, you won't be able to get the lug nuts off if they are over torqued. Then what do you do??
If the manufacturers of automobiles didn't think torquing wheels was important, they would never provide that info in the owners manual. If you have an owners manual for your car, look harder (probably in the "how to change a flat" section of the manual) , it will be in there.

 

Yep, it's in the "Wheel changing" section of the Owner Manual and all it says is:

"At the earliest opportunity, have the wheel nuts tightened with a torque wrench to 125 Nm (92
lb.ft). This torque must not be exceeded."

Gotta love how it says "have the wheel nuts tightened....", as though no owner can or should do this themselves!