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Arb nuts?

Started by metz, October 26, 2013, 09:13:25 PM

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metz

Why do the nuts that fasten the arb to the TCA suddenly come loose? i thought it felt a bit weird. sick of torquing them up.

PeteG40

Single use nylocs or pinch nuts. This is why!!!

metz

hmm..need to ring vw on monday and order 2 new ones then. tried every nut i can find and none of them would wind on the arb right.

Jezza-7

nyloc wont hold? thats odd.

Put some thread lock on as well?


metz

I don't think they're nylon fella.

Jezza-7

Have you not tried them then?

metz

the ones that are on arnt nyloc bolts. i have tried a load of others that are same size but the thread pitch must have been slightly different as it wouldnt screw on so had to re use old ones.

Yoof

Tris,

They're a fine pitch bolt (M12x1.5 from memory) M12 standard pitch is 1.75

Only time I've had them work loose is when the nylon bush has seated/moved after a few miles. Torque is quite high on them.

They should have been new nuts- they come with the TCA bushes... my bad!

Pete

Jezza-7

Are these the ones that are torqued to 120nm?

metz

75nm according to haynes. no worries peter. cheers for that. i had to use the car for work sunday so i cleaned the nut and threads put a bit of loctite on and torqued to the correct setting. will see how it goes for the rest of the week. i remember doing the drivers side when i first got the car and that has stayed put

Jezza-7

What ones you talking then? I thought it was the bar to body ones?

                                                                                                         Nm
Anti-roll bar to control arm . . . . . . . . . . . . . . . . . . . -. . . . . . . . . . . . . .  75
Anti-roll bar to body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   30
Anti-roll bar mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  120

metz

nah the bar where it goes through the tca. hence the wheel rocking back and forth in the arch jezza

Jezza-7

Ah i get you now. Confusing myself there.