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ojdefd

Member Since: 02 Sep 2025
Location: Jersey
Posts: 1

2015 Defender 110 Puma 2.2 SW Montalcino Red

Rear hub assembly MY2015 110

Hi all,

Recently undertook a overhaul of the consumable brake parts on my MY2015 Defender 110.

I damaged that the rear ABS sensor was fault and needing replacing (probably due to damage caused trying to remove a broken bolt on the stub axle to diff flange). Upon disassembling the hub to try and remove the seized ABS/ wheel speed sensor, I discovered a separate (self-inflicted) issue with the adjusting nut and spacer washer.

Somehow the spacer washer has been rotating with the wheel and carved a groove out of the stub axle threads

. It also seems like the hub cap was up against the hub nut maybe causing the rotation. Any ideas how this might have happened?

Note I have followed the Haynes manual to the letter with backing off the adjusting nut by 90 degrees once torqued to the required setting, then torqueing the hub nut to the 210Nm as required. There was no rocking in the brake assembly and I'm sure the bearings were seated/ positioned correctly.

I had only driven the vehicle maybe 100m to check the brakes had been bled!

Any help would be appreciated.

Many thanks.

2nd Sep 2025 11:44am

Johan_B

Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 138

2007 Defender 110 Puma 2.4 CSW Tonga Green

To me it sounds as if you have mixed the procedures and also might have the old two nut system.
When you write "spacer washer", is that the washer between two nuts? Or is it a spacer behind the thrust washer? I will assume the former below.

If you have two nuts, then you should first torque the inner nut to 50Nm, then back it off 90 degrees and then torque to 10Nm. Finally you should torque the outer nut to 50Nm. Last you tab over the lock washer on both nuts.

In your description I see three mistakes: Not torquing to 10Nm after backing off. And torquing to 210Nm on the outer, which I guess can damage the threads as the nut is not so thick. And finally not tab over the nuts with the lock washer. Basically, since the inner nut is not torqued, the nuts will be free to move and the washer as well.

2nd Sep 2025 12:11pm

TexasRover

Member Since: 24 Nov 2022
Location: Paris
Posts: 1316

2002 Defender 110 Td5 DCPU Chawton White

Yeah make sure you did not mix up the two old or new systems. Crucially the newer system has a spacer tube fitted between the two inner bearing races and so the tightening torque of the nut is immaterial. After properly tightening you lock it in place with peening and that's it.

There is plenty discussion here about the pro's and cons of each system, but they are interchangeable but you can't really mix them

2nd Sep 2025 12:50pm

Bluest

Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4325

2007 Defender 110 Puma 2.4 XS CSW Java Black

I've not looked for a while, but I think there may be parts of the haynes manual that confuses the 2 systems as well. I'm sure I recall a diagram showing the 2 nut arrangement accompanied by text describing the correct single nut system. 2007 110 TDCi Station Wagon XS

2nd Sep 2025 1:54pm

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