I have the "Lamina" aluminum wheels that were standard on the 2000 model. What is the correct torque setting for them?

Thanks!

 

Torque = 88-102 Nm / 65-75 lbf.ft

Graham

 

It is recommened to put a bit of "grease" on the wheel to keep the two surfaces from corroding together, I guess. I don't worry about it here, but the wheels can be damaged by over-tightening, so you don't need that extra push like we do on all steel wheels and hubs.

 

+1

You'll probably be familiar with 'Copaslip' anti-seize grease? An excellent product but the copper colour looks dreadful if it gets on aluminium wheels.

There's an equivalent aluminium based anti-seize called 'Zeta Grease' available from Land Rover dealers. Aluminium coloured, it doesn't show up against the wheels.

Graham

 

I know about the torque specs on these wheels but have always been very concerned when steel wheels are torqued to 110+ and tire monkeys use a 250 ft lb air wrench until it stops. Seventy Foot Pounds is just past hand tight IMO.

And I always thought that oil or anti seize shouldn't be used on lug nuts/bolts. Perhaps you are referring to where the aluminum wheel meets the steel hub.

 

Yeah 70 ftlbs seems a little light. I usually torque my lug nuts to 90-95 ftlbs. Also I am not using OEM bolts because I have aftermarket OZ wheels. Antiseize is OK to use once in a awhile to keep threads from galling.

 

Yes - I put a thin coating on the face of the hub and rear of the wheel where they contact. Can't recall seeing Jaguar recommend this but it's standard practice with Rolls Royce / Bentley.

The Highways Agency in the UK has a great love of road salt. Wonderful stuff for seizing wheels to hubs over the winter. The grease stops this.

Graham

 

Thanks guys. I set mine to 80 lb. as a guess - pretty close.

 

The two-piece lug nuts can be damaged with too much torque as well. The ones from Jaguar go for about $35 each. Also, if you take it to a shop, request removal and tightening of the lug nuts by hand.

 

After you request hand treatment of the lug nuts don't leave sight of your car.

 

According to XK8 Workshop Manual - Third Edition 2003 - for model 2003 to 2006 4.2L, 4.2L S/C VIN A30645 to A48684 - Torque should be 102Nm (see attached image of the page 212 of 1920 in manual)

102Nm torque wheel nuts 2003 - 2006 model XK8 /R

 

torque is usually rated for lug nuts/bolts with dry threads, no lubrication including anti-seize. adding any sort of thread lubricant requires less torque to be applied as the tensile force will be greater, much greater, for lubricated threads. there is no effect just using something to prevent hub to wheel corrosion. it is not correct that the air wrenches at the shops bang them on at 250 ft.lbs. most are set at about 80 for clockwise rotation.

 

As I posted in #2.

Interesting thing about torque setting. It's NOT a range. The higher figure is for new fixings (unstretched) and the lower figure is for used (stretched) fixings.

I sometimes wonder what they teach engineers nowadays.

Graham

 

+1, about engineers and their education at least in the states.

technically the initial stretching is performed at factory torquing of the nuts/bolts. some manufacturers actually require a dealer performed pre-delivery re-torquing to complete the stretching of frame mount fasteners and other critical things.

 

 

I'm learning new things every day!...thanks to all you guys.

 

Kevin,

Is it wheel nuts or lug nuts in New Zealand?

Graham

 

ahem...it's Trevor actually not Kevin LOL
We call them wheel nuts...just like you do in the UK.
All our terminology is based on UK English in fact.
My Dad's from Basingstoke UK, mum's Scottish, no such people as genuine Kiwis only imports really LOL

 

Apologies for that Trevor.

Graham

 

I too have to replace distorted lug nuts. I ordered the Toyota version and they are too small and the wrong thread pattern. What are my options for an 05 XK8, other than OEM jaguar?

Thank you.