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Freely2



Member Since: 29 Jul 2017
Location: Gold Coast
Posts: 33

Australia 
Differential modification

My MY2011 Freelander 2 has gone through its third rear differential in 135 000km.
The last time the pinion bearing was replaced (with Timken bearings) the Haldex wasn’t filled adequately and gave trouble (clunking when reversing and turning).

This was rectified by cleaning the filters and pump and filling it correctly. The Gen 4 ECU was updated with the latest software.
That was 30000km ago. Now the Rear differential has gone againa ndvthere amid metallic shavings in both the Haldex and differential oil.

So I feel I should replace both the Haldex and the differential.

I know Bell Engineering has been upgrading the pinion bearing with bigger bearings.
Bristol Transmissions also say on their site that they put in bigger bearings which they tell me are 5mm deeper bearings accommodated by a smaller spacer.

Can someone please tell me if this is necessary and what is meant by “bigger bearings”. Also are there any haldex mods that are necessary.

I don’t want to change the differential every 30000km!!!

Post #372080 15th May 2019 4:34 am
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blacktiger



Member Since: 31 Oct 2015
Location: St.Leonards on sea
Posts: 543

England 2012 Freelander 2 SD4 HSE Auto Santorini Black

Simply put, a bigger bearing can carry a larger load. Like the difference between a match stick and a 6" branch. MY13 Santorini Black SD4 HSE

Post #372101 15th May 2019 5:45 pm
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Boxbrownie



Member Since: 17 Mar 2019
Location: Looe
Posts: 402

United Kingdom 2007 Freelander 2 i6 HSE Auto Stornoway Grey

I believe I read the updated bearing installed by Bell Engineering is 30% stronger/more durable etc. Regards

David

Please let me know if anything in my post offends you, as I may wish to offend you again......

Post #372104 15th May 2019 7:02 pm
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Freely2



Member Since: 29 Jul 2017
Location: Gold Coast
Posts: 33

Australia 

Thanks - the pinion “bearing” is a circular based prism with a hollow, somewhat like a donut.

What I am asking is whether the upgraded bearing is larger in diameter or in thickness.

I am also asking whether Bell Engineering and Bristol transmissions are doing the same thing.

Bristol transmissions have told me they put in a thinner crush sleeve to accomodate the larger bearing, which is 5mm thicker than the original. I am wondering if this is the same as what Bell do?

Post #372111 15th May 2019 8:45 pm
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blacktiger



Member Since: 31 Oct 2015
Location: St.Leonards on sea
Posts: 543

England 2012 Freelander 2 SD4 HSE Auto Santorini Black

If it's just "bigger" but the same type i.e. single row ball bearing, then it'll be bigger in all dimensions except the internal diameter.
https://www.nbcbearings.com/common/images/...iagram.jpg

If they've just gone wider then they might be fitting a double row ball bearing.
https://www.bearing-king.co.uk/data/images/38881.jpg MY13 Santorini Black SD4 HSE

Post #372138 16th May 2019 12:07 pm
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Cobramark



Member Since: 18 Dec 2018
Location: WEST YORKSHIRE
Posts: 10

United Kingdom 2009 Freelander 2 TD4 XS Auto Stornoway Grey

What are the key signs of the bearing going?

Humming, rumbling, what should one look for?

Post #372143 16th May 2019 8:31 pm
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Badger51



Member Since: 01 Mar 2014
Location: Coffs Harbour
Posts: 289

Australia 2008 Freelander 2 TD4 SE Auto Nazca Sand

blacktiger wrote:
If it's just "bigger" but the same type i.e. single row ball bearing, then it'll be bigger in all dimensions except the internal diameter.
https://www.nbcbearings.com/common/images/...iagram.jpg

If they've just gone wider then they might be fitting a double row ball bearing.
https://www.bearing-king.co.uk/data/images/38881.jpg


The diff bearings are taper roller bearings, not ball bearings! 2008 Freelander 2 (Nazca Sand) SE TD4
133000 Km as of 05/19
Superchips Bluefin Flash
Nanocom Evo II

Post #372148 16th May 2019 11:44 pm
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Badger51



Member Since: 01 Mar 2014
Location: Coffs Harbour
Posts: 289

Australia 2008 Freelander 2 TD4 SE Auto Nazca Sand

Cobramark wrote:
What are the key signs of the bearing going?

Humming, rumbling, what should one look for?


Plenty of info on the forum re this issue. 2008 Freelander 2 (Nazca Sand) SE TD4
133000 Km as of 05/19
Superchips Bluefin Flash
Nanocom Evo II

Post #372149 16th May 2019 11:45 pm
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BossBob



Member Since: 30 Sep 2010
Location: Bristol
Posts: 588

England 2007 Freelander 2 TD4 GS Manual Baltic Blue

Yeah, but that means using the search function and asking the right questions. Some people just want everything given to them on a plate.
A plate of my reply follows!
Symptoms are road speed variable droning that can come and go. Can be confused with noise from part worn tyres, wheel bearings can give noise dependant on loading with no apparent play.
Even Austen from Bell Engineering wasn’t sure about the state of my diff’ bearing until he’d dismantled said diff’ and showed me the uneven wear in the bearing.


Last edited by BossBob on 17th May 2019 7:48 pm. Edited 1 time in total

Post #372152 17th May 2019 6:51 am
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Badger51



Member Since: 01 Mar 2014
Location: Coffs Harbour
Posts: 289

Australia 2008 Freelander 2 TD4 SE Auto Nazca Sand

The easiest way to confirm if the diff or wheel bearings are shot, is to use a set of chassis ears, these will identify a faulty bearing in an instant. 2008 Freelander 2 (Nazca Sand) SE TD4
133000 Km as of 05/19
Superchips Bluefin Flash
Nanocom Evo II

Post #372153 17th May 2019 8:16 am
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SouthamFL2



Member Since: 08 Jan 2019
Location: Banbury Borders
Posts: 413

United Kingdom 2013 Freelander 2 SD4 HSE Lux Auto Baltic Blue

^^ what he said. Preferably Steelmans (wireless) MY13 HSE Lux.......faultless since new.

Post #372154 17th May 2019 8:45 am
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Boxbrownie



Member Since: 17 Mar 2019
Location: Looe
Posts: 402

United Kingdom 2007 Freelander 2 i6 HSE Auto Stornoway Grey

Badger51 wrote:
blacktiger wrote:
If it's just "bigger" but the same type i.e. single row ball bearing, then it'll be bigger in all dimensions except the internal diameter.
https://www.nbcbearings.com/common/images/...iagram.jpg

If they've just gone wider then they might be fitting a double row ball bearing.
https://www.bearing-king.co.uk/data/images/38881.jpg


The diff bearings are taper roller bearings, not ball bearings!


Exactly, hence the crush washer. Regards

David

Please let me know if anything in my post offends you, as I may wish to offend you again......

Post #372156 17th May 2019 9:09 am
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blacktiger



Member Since: 31 Oct 2015
Location: St.Leonards on sea
Posts: 543

England 2012 Freelander 2 SD4 HSE Auto Santorini Black

Badger51 wrote:
blacktiger wrote:
If it's just "bigger" but the same type i.e. single row ball bearing, then it'll be bigger in all dimensions except the internal diameter.
https://www.nbcbearings.com/common/images/...iagram.jpg

If they've just gone wider then they might be fitting a double row ball bearing.
https://www.bearing-king.co.uk/data/images/38881.jpg


The diff bearings are taper roller bearings, not ball bearings!


Ah, OK, I didn't know that. I now wonder if they're wearing out early because they weren't set right in the original build. MY13 Santorini Black SD4 HSE

Post #372160 17th May 2019 11:39 am
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Freely2



Member Since: 29 Jul 2017
Location: Gold Coast
Posts: 33

Australia 

Thank you all for your answers.

I am going to get the differential modified with bigger bearings and replace my probably faulty Haldex, keep my fingers crossed and hope that I don’t have to replace to diff every 30-50000 km!!

Post #372250 19th May 2019 9:21 am
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MRRover75



Member Since: 13 Jan 2017
Location: Sandnes
Posts: 209

Norway 2007 Freelander 2 TD4 HSE Manual Tambora Flame

To install a wider bearing, the housing need to be modified to accept the wider bearing together with a smaller crush spacer. Austen does this modification. Its a misunderstood thing that you can just install a larger/wider bearing into the unit as-is.
Seems to me that the later diffs with a wider bearing also fails.

You may find some usefull info regarding the rear diff rebuild here: http://www.freel2.com/forum/topic29814.html

Post #372312 20th May 2019 11:15 am
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