Torquewrench settings!!!!!

[Cole@MBS]

Remember, when you have new tyres fitted, dont let them muppets use airguns, wind them on lightly, then torque them to the correct torque, if they dont this happens, £180 for hub and bearing!!

 

[turbopete]

could the broken studs not be removed by removing the disc and using molegrips or similar? or had they stripped the threads in the hub or something? ive never seen an airgun do that! big socket bar, yes, never an airgun tho! im amazed and curious at the same time!

 

[television]

It is not the air gun that breaks them when doing them up,its when you try and undo them that they break, by then no recourse on the ones that did it

 

[Cole@MBS]

No turbopete, after the pic was taken, we drilled them out and knocked the last bits of thread in but the threads were past it, nothing leaves until we are happy thats its safe, new hub and bolts, then its safe!!!!!

 

[turbopete]

dont blame you for that SAM, especially as its a safety issue! its actually a common belief (especially among cumbrian farmers in my experience) that tighter is better, when in fact all it does is stretch the threads etc on the bolt/stud till 1 day it snaps and the problem you show in the pictures is all too real. and all too expensive too, considering it should never have happened in the 1st place! 5 minutes care now could save a lifetime of pain later!

 

[television]

While talking about this, When I lived in Sweden, if you had alloy wheels on and changed a wheel at say -40C come summer it was almost impossible to undo them and broken studs are more common over there.

The reverse situation takes place in the Summer if you do not take car, under torqued wheels fitted at +40c are positively loose at -40c

 

[Cole@MBS]

I agree, i didnt think any of them were coming, if you look close to the other 3, you can just make out how damaged the thread are!

Cannot ever chance that with them threads, as you say, couple mins extra and all would be fine!

 

[Cole@MBS]

While talking about this, When I lived in Sweden, if you had alloy wheels on and changed a wheel at say -40C come summer it was almost impossible to undo them and broken studs are more common over there.

The reverse situation takes place in the Summer if you do not take car, under torqued wheels fitted at +40c are positively loose at -40c

Interesting Malc!:neutral:

 

[turbopete]

i suppose its logical in a way though, heat expansion, cold contraction etc. incidentally, both my dad and myself ran fords prior to becoming joyful merc owners and i believe that as a rule of thumb the torque settings are the same (85Nm) and we once used a torque wrench to tighten the wheels up. compared to tightening them up ourselves with the wheelbrace supplied with the car, the nuts were very loose. almost frighteningly so! dads car was brand new, mine was 6yrs old. (bored on a weekend, we decided to experiment through curiousity!) in a way, im surprised it doesnt happen more! on a wheel free ramp, using a "4 leg spider" type wheelbrace, i could tighten wheelnuts beyond 85Nm with the wheels in mid air!

 

[haroonz7]

That's some scary stuff. Does anyone know what the torque setting is for my c250 td ? May as well check them my self

 

[television]

That's some scary stuff. Does anyone know what the torque setting is for my c250 td ? May as well check them my self

Off the top of my head around 90, they are only 12mm bolts on a 202

 

[Dosco]

Buy....

... a torque wrench even if you only use it for your wheels, it is a good investment. There are products available at a good price point no need to go wild and spend £100's.

The annoying thing is that you can set the torque so the air wrench clutch releases the drive at the required level. The problem is that the users set them at the high end to cover all eventualities because it saves them time and of course they (sometimes) need the 'extra turning power' to undo over-tight wheel nuts.

A couple of years ago I had a wheel come off my caravan, fortunately I was slowing down for a set of TL's so speed was very low. The cause according to the emergency breakdown guy was overtightened wheel nuts three of the four had sheared clean off and the other had worked loose on both the outward and return journeys. He maintained that the three sheared studs had in fact started to fail at the point just as the wrench stopped.

The c'van repair centre denied all saying I must have done it myself - as they would never ever do such a thing.

 

[CL500Wizard]

what is the torgue setting for the S or CL class .. anyone knows or is it the same across all C upwards ranges?

 

[television]

The 221 is 150Nm

124,129,168,170,171,202,208,209. = 110Nm

140 and 163 =150Nm

 

[Cole@MBS]

I was going to look that up later,

Saved me the job, cheers Malc,

See ya tomorrow Sir!

 

[television]

I was going to look that up later,

Saved me the job, cheers Malc,

See ya tomorrow Sir!

Always a pleasure

 

[CL500Wizard]

The 221 is 150Nm

124,129,168,170,171,202,208,209. = 110Nm

140 and 163 =150Nm

and 215?

 

[television]

and 215?

I though that you would ask

150Nm sir

For others reading the 230 is 130Nm

 

[CL500Wizard]

Thank you Sir you are always a great help.

 

[turbopete]

any idea for the setting for 203 and 210/211's i havent a clue where i got 85nm from! obviously wrong though!