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Hutch526



Member Since: 06 Nov 2021
Location: Uk
Posts: 6

United Kingdom 2014 Range Rover Autobiography SDV8 Causeway Grey
SDV8 engine failure


So, before Christmas my engine died (4.4 SDV8) just stopped no warning then failed to turn over.
It is currently having the engine rebuilt, oil starvation to the Crank welded the bearings - see photos.
But the thing to see in photos is the amount of crud circulated back from the EGR. This was the cause of the oil starvation as the sump pickup and strainer were blocked.
The car has done 150k miles and has a full LR service history and some in between oil changes. So what can be done to prevent this? EGR blank?


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Post #621398 25th Jan 2022 9:07pm
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DrRob



Member Since: 16 Apr 2015
Location: Petersfield, Hampshire
Posts: 4225

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Who's rebuilding it? QP? 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
New Defender D300 90 on order so "Rory" will be going to a new home....!
1974 Series 3 Lightweight = "Millie"
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Post #621401 25th Jan 2022 9:26pm
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GraemeS



Member Since: 07 Mar 2015
Location: Wagga area
Posts: 2303

Australia 2012 Range Rover Autobiography TDV8 Bournville

That hasn't just been caused by EGR. I suspect that the sump breather or oil separator has been blocked.
Shining a bright torch into the oil filler neck of mine that has done 150K kms, all visible components are spotlessly clean apart from the light oil coating.

Post #621407 25th Jan 2022 10:34pm
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GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3519

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey

as above, unsure how oil contamination can happen from the EGR

Cooler gasket?
Is it crud or extreme coolant contamination

4.4TDV8 terminal failures are quite rare, especially with good history.
But do you know for sure it's history?
. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #621418 25th Jan 2022 11:58pm
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Kot



Member Since: 10 Mar 2021
Location: broadland
Posts: 1088

United Kingdom 

Wow you must be gutted.

What year is the vehicle as a matter of interest?

What can be done to prevent you ask?

The importance of using the correct specified JLR oil is a must, not negotiable.
Use SAE 5W-30 meeting Jaguar Land Rover specification STJLR.03.5005, ACEA C1(spec with a DPF its a low sulphur ash producing, where STJLR.03.5003 is for vehicle without a DPF)

You have a full LR history, you would expect that would be the case, but what oil was used in between these services?

Black Sludge is often created when the wrong spec oil is used, and it starts to break down under pressure and temperature etc.
Changing the oil (using correct spec) more than once per year, is another way to reduce contamination, also cut open your oil filter after its changed, you may see showings of undesirables and can take further action accordingly.
Your new Clean synthetic oil has detergents added to it (amongst other things) and actually helps by removing small amounts of sludge (to the oil filter) thats why its important to always change the oil filter with every oil change.

Also fuel dilution to engine oil is an age old problem to all diesel engines, dribbling fuel injectors etc and DPF active regenerations dilute the viscosity of the oil, which brings the rotating metal parts closer together resulting in bearing failures.
Making it even more important with the modern engines regarding oil choice and regular changes

Agree with GraemeS pointers.

And interested how were the piston rings? were they stuck and gummed/carbon-ed up? any evidence of Exh blow by past rings/liners into sump?

Would have thought it would be cheaper to get a recondition engine etc have you checked the crankshaft journals? in spec? would expect you would need a new crank at least. 2018 SE SDV8 4.4 Byron Blue


Last edited by Kot on 26th Jan 2022 3:17pm. Edited 1 time in total

Post #621421 26th Jan 2022 12:06am
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GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3519

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey

Quote:
And interested how were the piston rings? were they stuck and gummed/carbon-ed up? any evidence of Exh blow by past rings/liners into sump?


my mind went to rings too

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #621423 26th Jan 2022 12:29am
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Baltic Blue



Member Since: 13 Aug 2015
Location: North Wales
Posts: 3673

United Kingdom 2011 Range Rover Vogue SE TDV8 Baltic Blue

I wonder how it compares to the several engines that have had the sump removed to change the oil level sensor ??
I hope they all checked the sump oil pick-up while they had it off.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Post #621441 26th Jan 2022 10:37am
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cass



Member Since: 12 Oct 2011
Location: northumberland
Posts: 695

United Kingdom 2014 Range Rover Autobiography SDV8 Causeway Grey

I've only ever once seen that kind of mess inside an engine. It was a small BMW diesel with a full BMW history for most of its life. The problem was only spotted to a brake failure problem (vacuum pump failed due to crap in the oil).
BMW were adamant that the problem was due to cheap (not long life) oil being used for too long. The Techs involved claimed it happens fairly often as cheap oils can start to break down at very low mileages in some modern engines.

Post #621453 26th Jan 2022 2:23pm
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IGP



Member Since: 09 Jul 2020
Location: Malvern
Posts: 262

United Kingdom 2013 Range Rover Vogue SE SDV8 Siberian Silver

If the BMW had a full BMW history, then surely BMW were at fault for supplying the cheap oil? 2013 Vogue SE SDV8
2013 Freelander 2 SD4 HSE Luxury

Post #621460 26th Jan 2022 4:21pm
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cass



Member Since: 12 Oct 2011
Location: northumberland
Posts: 695

United Kingdom 2014 Range Rover Autobiography SDV8 Causeway Grey

Problem was that the BMW history was only for most of it's life, the last 2 services had been done by small garages and the car had been run to nearly 15K miles between the services which apparently was long enough for the alleged cheap oil to break down.
It was convincing enough to make me change mine every 10K mikes and only use the manufacturer approved brands.

Post #621463 26th Jan 2022 4:59pm
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Bl4ckD0g



Member Since: 16 Feb 2020
Location: 127.0.0.1
Posts: 1322

Netherlands 2010 Range Rover Autobiography 5.0 SC V8 Santorini Black

Blimey, that engine looks like its been on a diet of fried breakfast and egg, ham and chip dinners Shocked

Nothing useful to add, but thanks for sharing. Good luck with that.

Post #621467 26th Jan 2022 5:34pm
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Hutch526



Member Since: 06 Nov 2021
Location: Uk
Posts: 6

United Kingdom 2014 Range Rover Autobiography SDV8 Causeway Grey

Thank you for the feedback guys.

All of the oil changes were done by LR dealers, so can discount poor quality oil, unless a dealer has been using cheaper products.... but doubtful

Reason my mind went to EGR as the cause was, the pipe from the EGR to the inlet manifold was blocked and in the V below the EGR is full of crud.

Piston and rings were good, no issues there, but in the rebuild it gets new pistons and a good honing.

Crankshaft was U/S, ground down until the damage was removed, but out of spec so being replaced with a new one

Although not the first owner, I don't want this to happen again, but if Its just bad luck, then so be it. I'll crack on and enjoy it ๐Ÿ˜€

Oh and 64 plate

Post #621492 26th Jan 2022 9:12pm
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GraemeS



Member Since: 07 Mar 2015
Location: Wagga area
Posts: 2303

Australia 2012 Range Rover Autobiography TDV8 Bournville

The oil trap for the engine breather is mounted to the underside of the EGR cooler with the breather pipe appearing to be push fit through a rubber seal into the top of the oil trap. If the breather pipe, which feeds into the primary turbo inlet, became blocked then I would expect a big mess in the vicinity of the EGR cooler.

Post #621527 27th Jan 2022 12:55am
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Vogue



Member Since: 31 Jan 2008
Location: on the hill
Posts: 3689

United Kingdom 

That looks like itโ€™s done 150k miles without an oil change. We have tractors, 360 excavators and plant with the equivalent hours of 250k / 300k miles and they still look like new under the rocker covers with absolutely no build up like that. I genuinely would suspect no oil changes looking at that. 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

Post #621689 28th Jan 2022 8:07pm
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Cam-Tech-Craig



Member Since: 04 Aug 2011
Location: Gloucestershire
Posts: 16170

England 2015 Range Rover SVAutobiography SDV8 Loire Blue

Wonder if its a victim of full MD history service lottery scheme? Whistle Whistle Whistle Shocked

Post #621721 29th Jan 2022 2:30am
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