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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue
Tracing Oil Leak L322 M62 4.4 BMW

Evening all,

My beloved L322 ('53 M62 Petrol) has developed a slight oil leak.

The oil looks be traveling down the back of the engine and the running down the gearbox and dropping off the tubular support just behind the gearbox.

I thought it was the rocker cover gaskets so had these changed out... But it is still leaking
Here is a photo.

Click image to enlarge



Click image to enlarge


I'm a little stumped... If this area was cleaned when the covers were changed, would the accumulation of oil suggest the covers are still leaking, or is there another high point which may be at fault.

Any comments or suggestions welcome


Thank you.

Post #692277 9th May 2024 9:16pm
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

No you have a leaky o ring behind the oil filter supply return pipes I did mine a while back but now it leaks from the casting bung.

Follow those filter feed pipes down the O ring is behind the mounting plate

Post #692315 10th May 2024 6:46pm
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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue

Hiya. that sounds promising. Could you shed a little more light on that. can this be accessed from the top of the engine?

Post #692327 10th May 2024 9:53pm
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

Click image to enlarge

From your photo this is the plate access from below using a couple of extension bars and a flexible knuckle




Taken from my car this is what you find under the plate yhe bit iv circled is my new leak a core plug in the engine casting iv got to seal it to stop my leak I'm sure you need yo replace the rubber o rings that go in the cover plate

Post #692331 11th May 2024 6:34am
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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue

That is incredibly helpful thank you.

I am going to have a clean and a look today. My only reservation with a leak from that spot is that it looks like the leak is perhaps starting higher up the engine bay ... But untill I clean it and have a look, it's going to be impossible to tell.

Will report back!

Post #692336 11th May 2024 7:41am
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

Yeah I had the same though for ages but the oil travels from the fan and airflow.

You could use brake cleaner to give it all a good clean run the engine while your under it shine a torch up there and have a look see.

Iv got part numbers for the O rings somewhere and or specs so you can get some off the bay.

Post #692340 11th May 2024 8:18am
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

Here you go, have a read

https://www.fullfatrr.com/forum/topic6116....using+leak

Post #692364 11th May 2024 2:45pm
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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue

Cheers Dave,

I had another good look but the access when I'm on my back is woeful.

It's going back to the garage to have another look.

Will report back to hopefully close this off.

The leak really is not bad, it's just annoying. I can live with niggles, but a 50p blob when I park anywhere is driving me nuts!

Post #692743 15th May 2024 7:15pm
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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue

So my garage has told me that the timing chain covers are culprit for the leak.

Apparently these are sealed with a liquid gasket and it is a common failure.

No mention of the oil filter adaptor plate.

I'm not in the business of throwing money at a small leak, and the 6 hours quoted for the timing chain covers just isn't economically viable.

So ... I'm gonna have another good look myself and then take a view.

Seemingly living with oil leaks is just one of the joys of ownership!

Any comments/suggestions/people local to Haslemere willing to give me a hand with the spanner welcome!

Post #692796 16th May 2024 4:39pm
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

I will be bringing my fullfat home in the next week or so I plan on sorting my oil leak once and for all and have decided I just can't part with it after everything we've been threw together. I take some photos and do a write up as I know where my leak is comming from.

I can just about avoid ulez cameras if I drive out from where I live via bigginhill and seven oaks I keep using as my shooting car over pheasant season and fun times out.

Post #695670 6th Jul 2024 7:36pm
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jamiej



Member Since: 01 Dec 2023
Location: Surrey
Posts: 51

United Kingdom 2003 Range Rover Vogue 4.4 V8 Adriatic Blue

Hey Dave. Well good luck and I look forward to seeing the photos😌

Embarrassingly so far I've just learnt to live with the leak! 😌

For all its faults, I can't imagine getting rid of it.😍

Post #695672 6th Jul 2024 8:12pm
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Gsxr1250dave



Member Since: 20 Oct 2018
Location: London
Posts: 890

England 

I can't live with my leak it will.kill my driveway Rolling with laughter and as long as I turn.left out of my road and left again I miss all the ulez cameras I get it all sorted over the next 3 weeks or so ready for runs outside ulez zone and for shooting season. It will add an extra few miles to my trip but I love driving it so much I don't care Mr. Green

Post #695675 6th Jul 2024 8:40pm
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