 | Home > Puma (Tdci) > Rear diff failure |
 
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| andrewlandy Member Since: 07 Feb 2016 Location: Graz Posts: 82   
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I cant offer any advice on this at all. But it looks shocking and I wish you all the best with the fix! Makes me want to sell mine.
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2nd Feb 2019 3:25pm |
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| Moneypit Member Since: 27 Feb 2018 Location: North Yorkshire Posts: 271 
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Speak to Nigel at xcess4x4 about a new setup, he'll steer you in the right direction.
Last edited by Moneypit on 2nd Feb 2019 5:51pm. Edited 1 time in total |
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2nd Feb 2019 3:33pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5426 
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Agree with above. Talk to Nigel
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2nd Feb 2019 3:55pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3616  
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what ever you choose to do consider an Ashcroft ATB as they cost about the same as a new 4 pin centre for the diff DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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2nd Feb 2019 5:26pm |
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| BogMonster Member Since: 05 Feb 2008 Location: Stanley Posts: 391  
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That's proper ferked!
Possibly the pinion nut/bolt has been out at some point to take the flange off to replace the seal, and either no loctite was put on it so it came loose, or it was overtightened. As that is also what retains the pinion, matters would go downhill quite quickly... I just stripped my factory front diff and there was no loctite on either the crownwheel bolts or the bearing caps, so it's entirely possible that it was a Monday morning job from the factory! Either Ashcrofts https://www.megasquirt-v8.co.uk/diff_axle.php or Nige at Xcess https://www.megasquirt-v8.co.uk/diff_axle.php --- 2006 Defender 110 SW 300Tdi • 2011 Ford Ranger XLT crewcab • 2015 Defender 110 Station Wagon Utility TDCi |
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2nd Feb 2019 5:40pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19635
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Can't beat Ashcroft from the parts I've had so far.
It certainly is the pinion fixing that's came loose, I'd take a look at that and see what type it was or if it was indeed the correct type. Main thing is I'd be grateful for if I was in your shoes was that the driver was okay, if she had been travelling at speed it could have been very dangerous indeed. And for vehicle behind if anything let go not to mention collateral damage on the 110 too on top of the Diff etc. I would take a very close look at the culprit that caused it and following on from there who last had their hands on it if it had any repairs done at all. Diesel$ Live$ Matter. ⛽️🛢️👨🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧 |
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2nd Feb 2019 6:23pm |
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| mata Member Since: 24 Jan 2014 Location: Manchester Posts: 150 
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So some progress. Ahead of schedule my new pegged ATB diff, HD half shafts and HD drive flanges arrived from Ashcrofts yesterday.
Going to be fighting that back in to place over the weekend.  Click image to enlarge |
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21st Feb 2019 6:23pm |
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| Bluericky Member Since: 26 Jun 2014 Location: Cornwall Posts: 647 
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That’s the proper job !
I had my front diff explode on me two weeks ago so I know how little faith it leaves . I wish I could have stretched to a full ashcroft kit , looks the bees knees . https://www.instagram.com/hustynminepark/ |
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21st Feb 2019 7:26pm |
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| Bluericky Member Since: 26 Jun 2014 Location: Cornwall Posts: 647
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I went for one piece half shafts on the rear, figured there’d be less fretting without the flanges ! https://www.instagram.com/hustynminepark/
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21st Feb 2019 7:27pm |
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| LR90XS2011 Member Since: 05 Apr 2011 Location: bickenhill Posts: 3616
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will be interested to see what you think of the ATB DEFENDER 90 TDCI XS,
I hope everyone is well and your land rovers make you happy |
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21st Feb 2019 8:42pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7706
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in my experience def the right way to go with Ashcrofts. you didn't consider their low pinion rear HD diff then?
i run one of their Air lockers and Ashcroft shafts and drive members in my 110 and wouldnt look back. ref the failure, i am aware of one other rear diff failing like that on a 2.4 puma 80k miles on it. no previous diff removal or any part of. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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21st Feb 2019 9:59pm |
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| mactheknife Member Since: 08 Jul 2016 Location: Somerset Posts: 51 
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This happened to me just before Christmas , except on the front. I had some play in the drive flange, so I replaced it, the oil seal and dirt shield. It was torqued back up to spec. Ran sweetly for another 1000 miles and then bang! Again, low speed, in my case as I turned off a main road into my street. The drive shaft had come adrift from the diff, the flange bolt had sheared. The pinion fell into the diff and caused carnage.
I had to get the AA to help remove the prop shaft as the bolts seized. The AA chap suggested that incorrect end float might be the cause.. I did not set the end float when I replaced the flange. I rebuilt the axle 2 months ago with a reconditioned diff, new half shafts, bearings, seal, and drive flanges. I also replaced the front propshaft after finding some play in the splines. There is still a small amount of backlash in the system. I'm considering taking the diff off and resetting the back lash in it. As that appears to the root if it, however there was zero backlash when I fitted it. If I ever have to replace that input shaft oil seal again I'll be removing the entire diff and checking everything! On the plus side I now know how to rebuild an axle! |
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21st Feb 2019 10:32pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16923 
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There should be zero end float on the pinion, in fact there should be a small amount of preload on the bearings (3 to 4.5 lbft without the oil seal fitted). Similarly there should be a small amount of backlash between the pinion and crownwheel (around 5 thou).
Pinion height is also important and if incorrect can cause the crownwheel teeth to break. |
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21st Feb 2019 11:54pm |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6041 
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Quick question...
those Ashcroft HD shafts, with the bigger drive members... will they fit underneath an alloy (deep dish) wheel? |
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22nd Feb 2019 8:19am |
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