wheel nuts

[froggy]

Hi, anyone know what size the wheel nuts are on my S1 Xantia. The boy at the the tyre shop has over tightened them with his air gun! I have a torque wrench but don"t know what size socket it is . I need to be "David Hay " to undo them ! cheers Terry.

[Stewart(oily)]

19mm

[Hell Razor5543]

Terry, whereabouts are you (apart from too far from CitroJims')? If you are near Reading I have both am extendable wheel wrench and a torque wrench (and the Xantia wheel nuts need to be done up to 110NM).

[CitroJim]

Hi Terry, how are you? Long time no hear!

Xantia wheel nuts need to be done up to 110NM.

And not Mega Ultra FT as most tyre places seem to believe..

I've seen threads stripped in hubs before now due to over-tightening...

[myglaren]

I was rather taken aback and pleased when I had new tyres fitted last wheel and once the wheels were on and windy-gunned into place, the fitter then checked all the nuts with a torque wrench.
This was by no means a national chain, which is perhaps why.

I did check them when I got home and they were correct.

[Hell Razor5543]

I was rather taken aback and pleased when I had new tyres fitted last wheel and once the wheels were on and windy-gunned into place, the fitter then checked all the nuts with a torque wrench.
This was by no means a national chain, which is perhaps why.

I did check them when I got home and they were correct.

Yikes! Post them in the Recommended Garage section. A tyre fitter that does their job properly. Worth knowing about.

[Mandrake]

Terry, whereabouts are you (apart from too far from CitroJims')? If you are near Reading I have both am extendable wheel wrench and a torque wrench (and the Xantia wheel nuts need to be done up to 110NM).

Duly noted. Now that I have a torque wrench next time I am tightening the wheel nuts I'll use it...

( I have a feeling I actually over tighten them... )

[Hell Razor5543]

It is 110NM for steel rims. I do not know if that is the same for alloy rims.

[Mandrake]

It is 110NM for steel rims. I do not know if that is the same for alloy rims.

Oh. Anyone know the official figure for alloys ?

[ACTIVE8]

I was rather taken aback and pleased when I had new tyres fitted last wheel and once the wheels were on and windy-gunned into place, the fitter then checked all the nuts with a torque wrench.
This was by no means a national chain, which is perhaps why.

I did check them when I got home and they were correct.

If they are air gunned on I hope they wind down the pressure down on the adjuster on the gun, as if they don't then they are whizzing them on and, then checking them when they are already too tight, and above the torque figure hence the torque wrench clicks, and in effect they are doing it for show.

[Hell Razor5543]

I have got to check my numbers. According to the Haynes BoL, the wheel bolt torque is 90NM, no mention of steel or alloy rims.

EDIT, Found this website;

http://www.aabroncs.hu/files/hirek/nyom ... la2007.pdf" onclick="window.open(this.href);return false;

[Jodyone]

Good find, that Continental chart. I've always torqued wheel bolts up to 110-110NM, in the absence of specific specs, and that chart seems to make that ok! Thing is, a torque wrench is only accurate whilst tightening- you can't really check afterward, because that only tells you if it's tighter than spec. To check, you should loosen the bolt then tighten it again (which isn't really checking, its just redoing it..!)

[myglaren]

I was rather taken aback and pleased when I had new tyres fitted last wheel and once the wheels were on and windy-gunned into place, the fitter then checked all the nuts with a torque wrench.
This was by no means a national chain, which is perhaps why.

I did check them when I got home and they were correct.

If they are air gunned on I hope they wind down the pressure down on the adjuster on the gun, as if they don't then they are whizzing them on and, then checking them when they are already too tight, and above the torque figure hence the torque wrench clicks, and in effect they are doing it for show.

Final tightening was with the torque wrench, watched them from the office and they were right outside.

I backed them off then re-torqued to 90Nm.

[Old-Guy]

A properly equipped tyre shop will have (and use) sockets with torque-limiting shafts for their windy-guns. These may not be absolutely correct for a given vehicle as there is a fixed limit for each socket size, but at least they prevent gross over-tightening.

However, long ago I stopped using a certain local tyre 'specialist' when I spotted one of their fitters tighten up one set of wheel nuts 'properly' as above - and then, before I could stop him, heave them as tight as possible with a 'spider'. When I got home, I had to use a big breaker bar to undo all 4 - with the wheel off, 2 or 3 were stiff near the bottom of the stud threads - possible stretched studs. Promptly ordered a new set of studs (cheap enough) and fitted ASAP. The nuts seemed OK on the new studs.

[froggy]

Iam very well thanks Jim..........hope you are ok. c.c.c. misses your monthly colomn.