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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
Is that oil leak normal ?
Hi everyone,

I just bought my Defender TD5 last week-end and put it in my garage yesterday after a 200km trip to get it back home.

Today when I went to my garage I noticed some oil on the floor (around 24 hours of having parked the car) :


Click image to enlarge


And I noticed a bit of oil underneath the motor (sorry not familiar yet with all the TD5 motor parts and name yet) :


Click image to enlarge



Click image to enlarge


I'm well aware that Defenders are not oil proof at all and that they can leak oil. But my question is more till what limit is it normal ? And in my case is that oil leak normal ? Should I worry about it ?

Thanks Very Happy
Post #968001 17th Oct 2022 11:34am
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
That is engine oil. Check your rocker cover gasket. It is a known location for leaks. Welcome to TD5 ownership Thumbs Up
Post #968002 17th Oct 2022 11:36am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5729

2006 Defender 110 Td5 USW Zermatt Silver
If it’s new don’t worry, it’s like a dog, and will want to mark its territory 😜😜
Post #968004 17th Oct 2022 11:41am
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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
Thanks ! Very Happy

Thanks also for your quick answer ! I'll have a look at the rocker cover gasket this evening when I'll go back to my garage.

From what I think I saw (again not expert at all !) do you think the leak could come from this gasket with red arrow ? Because there was quite some oil there. Could the oil come from the rocker cover gasket and come down there ?


Click image to enlarge


How can I check the rocker cover gasket ? If I unscrew everything I would need to replace the gasket right ?
Post #968005 17th Oct 2022 11:42am
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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
landy andy wrote:
If it’s new don’t worry, it’s like a dog, and will want to mark its territory 😜😜


Laughing I'll just make sure I don't park my girlfriend's Peugeot there then Laughing
Post #968007 17th Oct 2022 11:43am
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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
geobloke wrote:
That is engine oil. Check your rocker cover gasket. It is a known location for leaks. Welcome to TD5 ownership Thumbs Up


Does not seem to come from the rover cover gasket which was pretty dry all around.

It seems to be coming near the oil filter, but it's becoming dark at that time. I'll have a deeper look tomorrow.
Post #968073 17th Oct 2022 5:53pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
Well it has been known for the oil filter to be cross threaded on to the housing and it leaks because it is not seated properly. The other place it could be coming from is the turbo oil feed/return joints.

Until tomorrow Smile
Post #968077 17th Oct 2022 6:01pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896

United Kingdom 2004 Defender 90 Td5 CSW Santorini Black
I had a fairly significant oil leak at the end of last year from a cracked spin-on oil filter housing. Fiddly to replace in the cold, but not complicated. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #968087 17th Oct 2022 6:42pm
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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
Well I was not able to find the origin of the leak, the area is really hard to have in plain sight. There is a lot of oil around that sensor (?) but it's not far from the oil filter so still not sure where it could come from. Should I remove the oil filter and try to put is back to make sure it's well sealed ?


Click image to enlarge


Also another question, is that normal that on the gearbox both holes are left open ?


Click image to enlarge
Post #968158 18th Oct 2022 12:46pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
That is the oil pressure sensor. I think you need to give the whole area a good clean with brake cleaner and start the search anew.

There should be a plug in the hole you have arrowed. The lower larger hole is usually left open.
Post #968159 18th Oct 2022 12:52pm
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jamesthebaker



Member Since: 17 Oct 2022
Location: Brittany
Posts: 32

France 2004 Defender 110 Td5 SW Alaska White
Thanks for the quick answer, I'll clean the area asap before my next drive !

Should I worry about not having that plug ?
Post #968160 18th Oct 2022 12:56pm
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rallysteve



Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2237

United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
The TD5 normally has a plug in the wading plug hole (large one in your image).

The smaller hole/plug is just the location for the crank/flyweek timing pin.

Neither are really an issue not being fitted unless you were driving through very deep water.

Steve 02' 110 TD5 Double Cab Rebuild Thread
Post #968165 18th Oct 2022 1:14pm
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AndyT66



Member Since: 19 Sep 2016
Location: Bedford
Posts: 148

England 2004 Defender 90 2.5 TD XS CSW Zambezi Silver
Mine has had spots of oil there for 6 years or more. I just park it over some card. Check the fuel pressure regulator though at the back off side corner of the engine. Mine leaked and made its way down to the the area in your pic
Post #968693 22nd Oct 2022 11:12pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8051

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
I would suggest previous owner has removed sensor plug and wading plug from Bell housing as rear crank seal has gone that's your leak. F4om pics looks to more oil there than from filter area.

On a td5 normally both these would be plugged, I would ask why are they removed.

Looking at oil colour it needs a change and both filters anyway. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #968697 23rd Oct 2022 4:45am
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kenzle8a



Member Since: 12 Feb 2020
Location: None
Posts: 1074

 
Also worth checking the Fuel Pressure Regulator on the top of the block. That turned out to be causing a similar oil leak on mine (as the diesel was washing the oil off the block).

You can tell as the Diesel will pool and collect on the top of the gearbox before running down.
Post #968707 23rd Oct 2022 7:59am
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