fatbaldboy

I'm off to Munich. Just arrived at LHR and as I pulled into the car park I could feel/hear that there was probably a seized calliper.

Felt the wheels. Rear offside is warm but easy to touch.

Then I notice that a wheel nut is missing. Check the others on the wheel and they're not loose by hand but I had to torque them up a bit with the wheel wrench.

It's the locking nut that has gone so I've replaced with a normal nut that was in the boot.

There's very little chance (never say never) that I left them untorqued...but I find it hard to believe that the heat (of which there wasn't much when I touched the wheel) could be responsible.

Thoughts?

WinFreak

Could well be, you won't believe how many people lose wheel nuts or even wheels on trackdays because the wheels get hotter.

fatbaldboy

Really?

I guess the nut material expands more quickly than the bolt then?

WinFreak

Its the wheel alloy that has a different expansion rate to the wheel nut and stud.

Nick Graves

In my case, the heat transfer of a track day melted the powdercoating in the nut recesses & hub flanges, sufficiently for them All to go wobbly.

And I tend to only 'just' torque the locking nut, so it would be the first to go.

So, yes.