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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Transfer case output seal
The rear seal on the TD5 is leaking so time to replace it. I know the seal sits a little bit back from the front of the flange, but how far back is right?

From memory 36mm socket for the output nut? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #192837 11th Dec 2012 9:21pm
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Jimb1978



Member Since: 05 Sep 2012
Location: Huddersfield
Posts: 808

England 2002 Defender 110 Td5 Black LE Java Black
I did mine a few thousand miles ago, can't remember the socket size and just shoved the seal back in to match the position of the old one. It hasn't started leaking yet!


That is the easy bit though, the handbrake shoes are a pain in the arse. I took mine off to clean the oil off them properly and could not get those securing spring clips back on for love nor money. I believe you can get a proper tool to do it but I had to rely on brute force and voluntary knuckle skin removal!
Post #192839 11th Dec 2012 9:49pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Thanks. That's what I did last time but was the old seal installed far enough back last time? Who knows! 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #192843 11th Dec 2012 9:59pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1776

France 2008 Defender 110 Puma 2.4 CSW Alpine White
Is not polishing the area on the drive flange or replacing it as important as position?

If its damaged it will carry on leaking.

Keith
Post #192846 11th Dec 2012 10:04pm
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pope10001



Member Since: 15 Oct 2011
Location: Dulverton
Posts: 489

United Kingdom 1992 Defender 90 200 Tdi HT Zermatt Silver
Re. the handbrake. Time for an X-brake? Smile
Post #192887 12th Dec 2012 7:14am
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pope10001



Member Since: 15 Oct 2011
Location: Dulverton
Posts: 489

United Kingdom 1992 Defender 90 200 Tdi HT Zermatt Silver
Re. the handbrake. Time for an X-brake? Smile
Post #192888 12th Dec 2012 7:15am
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Zinke



Member Since: 27 Jan 2009
Location: Scunthorpe
Posts: 670

United Kingdom 2003 Defender 90 Td5 HT Epsom Green
Remember to check the breather is clear before you start pulling seals out.

Pete.
Post #192902 12th Dec 2012 8:17am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
ickle wrote:
Is not polishing the area on the drive flange or replacing it as important as position?

If its damaged it will carry on leaking.

Keith


I am not sure what you mean by 'Is not polishing the area on the drive flange or replacing it as important as position?"

I agree if it is damaged it will leak. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #192903 12th Dec 2012 8:20am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
I did check the breather by blowing down the pipe (extended breathers fitted) and got some resistance as I released the pressure there was a slight hiss of air. This was the same for front diff & rear diff. So I suspect thats because the air can't escape?

As I had the seal. I had a go at replacing the rear output seal on the transfer case. Removed the prop shaft OK.
Then had fun and games removing the cross head screw holding the drum on. I had to break out the impact driver as head was starting to round off using a normal screw driver.

Removed the 30mm nut using the buzz gun. Replaced the seal but think the seal is too far in, so may have to do it again!

Looking at the flange and where the seal sits, there is a raised bit on the flange, is this where the seal will (should?) site once tightened up / installed correctly?
If so, is there a reason why I can't fit the seal to the flange and then put the flange and seal back in place and then tighten the nut etc? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #194114 16th Dec 2012 7:43pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1776

France 2008 Defender 110 Puma 2.4 CSW Alpine White
Hi John,

I think if you rely on the flange seating the seal, it will not seat deeply enough and pick up and fail quickly.

I bought a recon box years ago for my 100" and asked the guys there about a leak I had on a transfer box, they showed how they polished the surface where the output seal runs to remove the score marks, I bought polished flanges from them and had no leaks on the box from that point on.

Don't forget to lube the seal before fitting the flange in, plus IIRC there is a fibre seal in behind the flange somewhere that stops oil working down the splines.

Keith
Post #194124 16th Dec 2012 8:13pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Hi Ickle
Thanks for the reply. So, ignoring my idea about fitting the seal to the flange. How far in should the seal sit?
The felt washer I didn't replace, but will get another one.
A polished flange..Sounds fancy.!
Does the flange get worn due to rotating within the seal?

I did lube the seal before inserting.
Once the leak is sorted I will replace the brake shoes, at the mo it pointless due to the leak.


So if the flange is worn, one of these would be a good move?
http://www.ebay.co.uk/itm/LAND-ROVER-DEFEN...3a732ac1af

cheers. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #194134 16th Dec 2012 8:33pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1776

France 2008 Defender 110 Puma 2.4 CSW Alpine White
Hi John,

The recon guys were spinning the flange in a lathe and polishing with some fine emery cloth, and yes if its scored it will leak.

The ebay kit looks superb.

IIRC the seal should sit 2mm - 3mm in from the face of the box, I'll try and find my old manual in the morning

Keith
Post #194153 16th Dec 2012 9:03pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Hi Keith
If you get time to find the manual then that would be ace. For the price of the kit, it will be worth it.

cheers
john 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #194164 16th Dec 2012 9:21pm
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ickle



Member Since: 22 Jul 2010
Location: South Vendee
Posts: 1776

France 2008 Defender 110 Puma 2.4 CSW Alpine White
Hi John, went through the bits of the manual I downloaded several years ago, I can't find any reference to depth it seats at.

I'll see if I can find the disc tonight.

Keith
Post #194382 17th Dec 2012 6:11pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5842

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Thanks so far for your assistance. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #194408 17th Dec 2012 7:20pm
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