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gazman

Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

Oil leak and play on front diff

Big leak and play in the front diff input shaft (pinion shaft?) Can it be tightened or is it better to just get the full diff out of something else and fit That? 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r

25th Sep 2018 8:39pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3616

2011 Defender 90 Puma 2.4 XS CSW Galway Green

I believe the pinion bearings are set up with shims , hence play means the bearings are probably kaput so a rebuild or replacement is on the cards DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

25th Sep 2018 9:07pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

You can check if the inputshaft nut is still tight. If so it probably would be better to take the diff oout and check the whole diff. Play etc.
If the nut is loose tighten it and if the play is gone you just need to change the oil seal. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

25th Sep 2018 9:08pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19645

IIRC if the bearings are shot the diff has to come out for access to the bearing.
There shouldn't be excessive lateral movement, only way of telling is if the pinion bolt is loose, if it is the seal it may be damaged and leak if torqued up unless replaced.

Hopefully a more knowledgable member will be along shortly. Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧

25th Sep 2018 9:16pm

gazman

Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

Yeah it's lateral movement. Had a horrible feeling it would be a replacement 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r

25th Sep 2018 9:39pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 19645

I'd just get a new seal, replace it and tighten up or get it done.
Then see how it goes, if it still gets lose or leaks again, get it out.

I've had mine repaired on the rear multiple times, not particularly loose but leaking. The seal keeps going, the pinion has been changed as well and still does it around every 20k so far.
There never seems a plausible reason for it, unless it's due to prop angle on the rear on the Puma with there transfer box nose down to the front.

At least try the cheaper option first, if I was you.

Diesel$ Live$ Matter. ⛽️🛢️👨‍🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧

26th Sep 2018 12:34am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 16927

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

^^^ Next time mike up the part of the flange the seal runs on at several points across its diameter. I have found quite a few which have been sigificantly out of round which will cause premature seal failure.

26th Sep 2018 7:00am

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