Wheel bearing assembly

[Gary57]

When I pulled off my discs to get measurement to get them made I noticed something wrong with the wheel bearing locking nut. When I tightened the nut there is nothing to space it to spilt pin. So there is nothing to keep the nut tight. What is it meant to go like?? Could someone maybe post the page from the FSM??

The nut was still tight when I took it off but its not a nylock nut nor a crown nut and I just think something is wrong.

[Vlade]

Yeah rather check it out... I had a wheel bearing failure over the weekend with my Polo... not a nice feeling.

[Gary57]

Could someone please post the page from FSM showing the assembly.

[veecee]

there should be a place for a split pin to go in (a hole in the stub axle), but its not a castle type nut.

its also quite toight hey. i remember sheering a half inch drive stud off trying to remove that nut the first time i ever tried.

had to go buy a 3/4 long handle power bar and the appropriately massive socket!!!!

[Gary57]

Yes but when the nut is tight there is about 2mm gap before the split pin hole, which will allow the nut to loosen.

[Draco]

That is fine, it shouldn"t loosen more than that, remember if you make it too tight you will damage the bearing and it will seeze, thats the way I found out, you tighten it and the loosen a bit to the split pin then it is right.

[Gary57]

you tighten it and the loosen a bit to the split pin then it is right.

there is a 2mm gap maybe even 3mm. If I looses it till the split pin its too loose.

[veecee]

you tighten it to the recommended torque spec in the manual.

its quite a lot of nm's!!!

but thats the normal assembly.

the nut does tighten against the fancy washer. the washer cant rotate because of its slotted type hole, maybe thats why the nut wont turn loose.

the split pin is there for safety reasons then.

trust me you will feel a loose nut immediately.

[Gary57]

I have always done as Draco says. Tighten it then loosen it slightly.