Wheel bearing nuts dicsovery 1

[petergalileo]

I am in the process of renweing brake discs and the double locknut aseembly is giving me a headache.

I tightened the rear nut then backed it of slightly, put on the washer and then put the front nut on.  If I tighten the front nut the rear one turns also ??

When I bend the washer over onto the flats of both washers they seem to be able to turn reasonably easily still, does that sound right ?

Peter

[hobbit]

The locking tab should only need one face on the inner nut and one on the outer to hold it, the washer should not turn at all as its shaped to fit onto the hub

Wind the second nut on witht he washer in between, making sure that you dont move the inner one, then bend one side upagainst the inner nut, then you can tighten the outer up, and bend another face over theouter nut

The outer nut should be fairly tight up against the washer, so the washer should not turn when the outer one is being tightened

Are you using a nut box spanner?

[petergalileo]

Well it only moved a little but being 2.5 tonnes a wheel bearing failure proberbly isnt a good idea so I wanted to be sure.  

I have the box spanner.

[hobbit]

Ok, you only need a little bit of end float on the bearing

When refitting after new bearings etc, wind the inner nut up tight, then back off to the corect play, then washer on, then spin the other nut on, so it touches the washer if you get a bit of movement on the inner nut, just take note of the position of one of the flats on the inner nut, and move it back to that position if it moves. bend one tab in onto the inner nut, tighten outer nut, and tab out

How are you measuring the end float?

[petergalileo]

Endfloat is being checked by that usefull peice of kit the eyes !  

I havent replaced the bearings but I had leaky seals on the back which I have replaced and I have changed the discs on the front.

[Range Rover Blues]

If you've fitted new oil seals correctly that peice of kit shown in the manual doesn't work too well, I use a feeler guage and lever the hub away using a screwdriver under the lockwasher once both the nuts are in place.  If you have renewed the bearings there is a revised procedure for NON-ABS cars only, but it doesn't work with used bearings.  Also the ABS cars had much less endflaot even though they use the same hubs and bearings.  This is because of the revised CV joint design.