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| MR_JAMES Member Since: 10 Oct 2013 Location: ESSEX Posts: 248   
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That sounds like thread sealant to me.. to stop drips! 1953 80"
1987 mini city e 2011 90" |
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7th Jul 2018 10:33am |
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| SJM2018 Member Since: 06 Jul 2018 Location: Bristol Posts: 296 
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Doh! Should have probably guessed that!
Do you change them everytime you do the oil? I’m getting the pinion seal changed by Steve Hill in Bristol next month; maybe I’ll ask him to change them then. Also, is it ‘normal’ for the rear diff to get that hot cruising at 65mph unloaded on the motorway? |
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7th Jul 2018 10:40am |
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| ozzie1989 Member Since: 25 Feb 2009 Location: Wales Posts: 282  
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I've never had to put sealant on the diff plugs on any of my landies - I believe they are taper thread so shouldn't need it - Unless someone has damaged the threads previously or fitted the wrong plugs.
I'd change them to get rid of the rubbish that's on them and they should last you many many uses. I've never changed a plug either! As for the diff getting hot, can't say I've ever felt it but it always amazes me how hot the transfer box gets so it wouldn't surprise me. Now: 2010 2.4 TDCi 110 Utility Wagon Then: 2004 2.5 TD5 90 Hard Top (X-Tech Edition) |
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7th Jul 2018 2:50pm |
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| Mdm Member Since: 11 Sep 2013 Location: Sunny Lancashire Posts: 1601
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yes it gets hot .more so if its low on oil or got the wrong oil in it.
it may well be the seal or even the flange that's worn. heres one of mine both hand brake and the diff end where leaking  Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge |
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7th Jul 2018 8:56pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20376
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Rear diff pinion oil seal is a real pain, mines leaked multiple times. $W33T $0U7H3RN $UG4R
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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7th Jul 2018 9:10pm |
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| zsd-puma Member Since: 09 Aug 2016 Location: Kent Posts: 2720 
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I its blue/green its probably Hylomar, you shouldn't need it on a Defender, but some of the other Land Rover products specify it for diff plugs, front diff on the L322 for example.
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7th Jul 2018 10:33pm |
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| sako243 Member Since: 08 Jul 2014 Location: Wales Posts: 1218 
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The rear diff pinion seal is prone to getting dirt and crap in it. Nige at Xcess4x4 has designed a "Superflange" that protects the pinion seal. The rear part of the flange is flared to sit over the seal with a small gap (by small we're talking thou here) and therefore protect it.
Now obviously not everyone sets up the pinion as fastidiously as Nige so although we'll within spec not all pinions have the same height so he's also got a load of precision washers that are used to space it out. Note if you need the shims it's not that the pinion is set up wrong, it's just LR tolerances... Thought I had a better picture of one but you can just about make it out in the photo below. Note the revolutionary new form of diff guard. Long lead time on those and not cheap unfortunately. I sold the last batch for £850 each 
Click image to enlarge Edit: Better picture Click image to enlarge Ed 82 Hotspur Sandringham 6x6 95 Defender 110 300Tdi |
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8th Jul 2018 7:59am |
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