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Slight clunk in brand new Timken hub bearing
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Harry365
 


Member Since: 25 Aug 2018
Location: Lincoln
Posts: 373

United Kingdom 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3
Slight clunk in brand new Timken hub bearing

Evening

I'm just about to fit a new timken front hub. Giving a test spin on the bench, there is a tiny clunk every 60 degees of turn (6 clunks per rotation). You can't hear it, it feels like the equivalent of a wrist click (it's not my wrist). Other than that, it feels tight and smooth, unlike the one it's replacing.

Very much regretting not testing this at Rimmers before I walked out the store.

Anyone think this is normal?
  
Post #227574929th Jan 2022 7:53 pm
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Hardware
 


Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12721

United Kingdom 2011 Discovery 4 3.0 SDV6 XS Auto Sumatra BlackDiscovery 4

I thought some of the more experienced chaps on here would have replied by now but seems wrong to me.

Perhaps it's because there is no load on it but 6 clicks per turn would surely equate to an annoying vibration out on the road?
 .


Dean
====================================

2011 D4 XS - OBD port protection, RLD spare wheel protector, All LED interiors lights, Timed Climate enabled, iiD tool paired.
2011 D4 Landmark - Stolen from same dealer before I paid for it
2011 D4 GS - Stolen whilst at dealer Sad ... All LED interiors lights, DRLs, Spare Wheel protector.
1996 300Tdi - Eaten by tin worms 
 
Post #227577729th Jan 2022 9:27 pm
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Lee Trinder
 


Member Since: 12 Aug 2018
Location: Henley in arden
Posts: 515

2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Hi there, I bought a timken wheel bearing a couple of weeks ago, I’ve not had time to fit it yet but I was surprised at how hard it is to turn and how notchy it is,
  
Post #227578629th Jan 2022 10:14 pm
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Harry365
 


Member Since: 25 Aug 2018
Location: Lincoln
Posts: 373

United Kingdom 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3

Yes Lee, that's exactly how it feels..

The stiffness I'm ok with, I put this down to newly packed grease, cold and stiff. But the notchyness of it doesnt seem right. Seems like the bearing is "low resolution".

I can't see how any notching or backlash in the bearing won't result in quick wear.

I've fitted it as I don't really have a choice but will be monitoring it closely. I will report back with noise an feel.

I am also going to go to Rimmers again next week and have a play with a few samples of a few different brands and see how they compare.
  
Post #227578729th Jan 2022 10:19 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Most bearings are notchy when there is no load applied to them

The CV joint is held tight by the nut on the end of the stage, applying a preload to the bearing. Without this preload, the bearing doesn't run 100% true*

It will be tighter to rotate anyway, and the clearances are much less, and with fresh grease

*I'm more than a few gins in, and that's the best I can explain it at the moment Laughing
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #227578929th Jan 2022 10:33 pm
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Harry365
 


Member Since: 25 Aug 2018
Location: Lincoln
Posts: 373

United Kingdom 2007 Discovery 3 TDV6 XS Auto Zermatt SilverDiscovery 3

Perfect, Mikey. Thanks

Preload etc all makes sense. The play is on n x-axis resolved by the hub nut I assume or something or other.

Enjoy the gins
  
Post #227579929th Jan 2022 11:27 pm
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galwaygreen
 


Member Since: 30 Oct 2011
Location: plymouth
Posts: 6525

United Kingdom 2016 Discovery 4 3.0 TDV6 Graphite LE Auto Loire BlueDiscovery 4

youve done your bit in fitting new...let it bed in and test in a week or so
  
Post #227581430th Jan 2022 1:24 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8118

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Genuine LR products have 2 years warranty regardless of who fits them, keep your receipt safe Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #227583730th Jan 2022 9:49 am
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