- To lube Car wheel nuts / Studs or not?
Bit of copper slip on my wheel studs-good job too as the monkeys that fitted my last set of tyres did a double run round all the studs with the flippin impact gun!!Posted 5 years ago
When I came to undo them and torque them up properly they were done up to over 200 lb/ft!!!!
And the so call professional fitter fitted short valves, glad I complained to their head office over their ‘premier fitting centre status’.
Blackcircles.com replied back very quickly to my bad feedback with details).
VRS autos in Coventry be ashamed, very ashamed!MacavityMember
“Must admit I’d rather be able to get them off easily that deal with seized bolts.”Posted 5 years ago
The recommended torque figures will be based on the fastening either being lubricated or not – if you follow the correct guidance then you cannot over tighten it.
If the fastening is intended to be used dry and you lubericate it then the actual torque applied can be much higher…
“The torque value is dependent on the friction produced by the threads and by the fastened material’s contact with both the fastener head and the associated nut. Moreover, this friction can be affected by the application of a lubricant or any plating (e.g. cadmium or zinc) applied to the threads, and the fastener’s standard defines whether the torque value is for dry or lubricated threading, as lubrication can reduce the torque value by 15% to 25%; lubricating a fastener designed to be torqued dry could overtighten it, which may damage threading or stretch the fastener beyond its elastic limit, thereby reducing its clamping ability.”Posted 5 years ago
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