wheel nut torque

[ukcerb]

Just putting spiders from a T350 onto my cerb.I`ve got new wheelnuts from Racing Green but I am not sure what the recommended torque is. Anyone know? (I have tried a search but nothing)

[Flashheart]

In the Cerbera servicing manual, Wheels & Tyres section, page G4, it recommends 50-55 lbft. It does, however, show a drawing of the old RL5 as used on the very first Cerbs.

[Brummmie]

i use 75Lb here.

ETA Jeep recommend 100lbs/ft so you wont be stretching studs at 75.

Edited by Brummmie on Sunday 1st February 09:26

[kojak]

100 Newtons.

Had this question a year ago.

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

Edited by kojak on Sunday 1st February 11:57

[ukcerb]

Thanks for all your answers. I am going with 75lb and a little smear of copperslip.(at least my new £50 torque wrench will start earning its money now!)

[VPower]

ukcerb said:

Thanks for all your answers. I am going with 75lb and a little smear of copperslip.(at least my new £50 torque wrench will start earning its money now!)

Don't let the copper slip get onto the alloys!!!!!

There is a special ally slip for alloy wheels!!

[gcpeters]

what does copper slip do to the alloys then?

[VPower]

It will encourage electrolytic corrosion and eat the alloy away.
It discolours the ally as well being copper colour.
I'm sure Halford's sell the ally slip!

[ukcerb]

Ok thanks for that although I only ever put it on the stud but maybe a bit of allyslip on the mating face between nut and wheel would be good too.

[gcpeters]

VPower said:

It will encourage electrolytic corrosion and eat the alloy away.
It discolours the ally as well being copper colour.
I'm sure Halford's sell the ally slip!

well i never knew that!

ill have to get some ally slip!

[VPower]

This is the type of stuff if you can get it.

http://www.solvitol.internext.co.uk/tech_aluantise...

BUT also be aware that greasing the wheel studs means that any torque figure should be reduced to 80% (sort of industry guideline in general Engineering).

ALL Torque figures are given for dry threads, unless otherwise stated!

I just use "feel" so I don't over do it!

[ukcerb]

I knew about the electrolytic reaction between metals, the nearer they are to each other in the elementary table the less the reaction, so if my wheel were made of lead then copperslip would have little effect on them and as an addded bonus the extra weight would prevent the car from turning over when cornering hard.