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D4 Secondary turbo drain modification LTB00487 with photos
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ridgeback_moor
 


Member Since: 11 Mar 2008
Location: Gateway to the Moors
Posts: 1789

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4
D4 Secondary turbo drain modification LTB00487 with photos

I've become increasingly paranoid about the large puff of blue smoke from the exhaust pipes caused by oil pooling in the secondary turbo on my 2010 D4. This 2nd turbo only kicks in at about 2800 rpm, so after a long motorway trip there can be quite a bit of oil in there, creating a fairly spectacular cloud for the vehicles behind!

LTB00487 is Land Rover's solution to the problem, which involves fitting a shorter oil return pipe from the turbo that drains directly into the block, rather than lower down in the sump where the original pipe goes to.
PDF of LTB00487v6 here...
http://www.disco3.co.uk/gallery/albums/use...0-%203.pdf

1st step was to disconnect the turbo bypass valve from the bottom of the intercooler, allowing any oil to drain out of the intercooler...
Click image to enlarge


Despite having 112000 miles on the clock I was quite surprised at the amount of oil and water (condensation) that drained out of the intercooler....
Click image to enlarge

I also decided to run some paraffin through the intercooler from the top, which cleared out some more of the sludge, blowing through with a hair drier to dry it out on completion.

Next task is to remove the starter motor, which gives access to the port on the side of the block that the new pipe feeds into. The layout underneath a D4 must be different to a D3, as I'd read a few threads on here about how difficult the D3 Starter is to remove, but with a bit of trial and error this one came out fairly easily...
Click image to enlarge


With the starter motor out of the way you can now get at the bottom of the turbo and also the port on the side of the block (seen here with the blank still fitted, secured by 1 bolt)...
Click image to enlarge


New oil return pipe (LR044556) fitted, with new gasket (LR013235)...
Click image to enlarge


New pipe compared to the old one...
Click image to enlarge


Blanking plate (LR044555) fitted to sump where old drain pipe used to go....
Click image to enlarge


Whilst I was underneath I decided to remove and check the turbo bypass valve as some people have had problems with it sticking. No problems with mine though, it's been very well lubricated from within!
Click image to enlarge


I won't tempt fate by commenting on how successful the modification has been just yet, but initial impressions are positive! With a few more miles of motorway and urban driving, time will tell. The shorter pipe length and drain into the block above the oil level certainly should allow the oil to drain out of the turbo faster than it did before, so fingers crossed. I believe all vehicles after­ VIN DA676456 were fitted with the shorter pipe as standard, so this only applies to earlier D4s (date tbc).
 Previously:
2005 D3 2.7 TDV6 S
1984 90 2.25 Petrol CSW
1992 90 200TDi Hard Top
1995 Discovery ES 300TDi
2003 90 TD5 Truck Cab

 


Last edited by ridgeback_moor on 27th Jul 2015 11:11 am. Edited 1 time in total 
Post #150703526th Jul 2015 11:21 am
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Comanche
 


Member Since: 22 Jul 2010
Location: So far behind I think I'm first!
Posts: 960

Wales 

A braver man than me and a cracking write up Bow down
 I started off with nothing and Ive still got most of it left.  
Post #150703726th Jul 2015 11:26 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18749

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Having seen those pictures, the 3.0 block looks almost identical to the 2.7...
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #150704626th Jul 2015 11:44 am
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

An outstanding contribution. I need to work harder on my photos!

Bow down
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
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Post #150704926th Jul 2015 11:47 am
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ridgeback_moor
 


Member Since: 11 Mar 2008
Location: Gateway to the Moors
Posts: 1789

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Well I've now done 500+ miles since completing this mod, and I think I can safely say it's cured the smoky secondary turbo problem. Now I'm not afraid to overtake without causing a white out behind me! It's just a shame LR wouldn't contribute to correction of their own design faults Confused
 Previously:
2005 D3 2.7 TDV6 S
1984 90 2.25 Petrol CSW
1992 90 200TDi Hard Top
1995 Discovery ES 300TDi
2003 90 TD5 Truck Cab

 
 
Post #15100481st Aug 2015 6:36 pm
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CUCO
 


Member Since: 27 May 2011
Location: Spain & Oleee!!!
Posts: 609

Spain 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

Good news! Thumbs Up
  
Post #15100751st Aug 2015 7:45 pm
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Naks
 


Member Since: 12 Jul 2010
Location: Stellenbosch, Republic of the Western Cape
Posts: 613

South Africa 2011 Discovery 4 3.0 SDV6 SE Auto Fuji WhiteDiscovery 4

top job, thanks for the detailed description Thumbs Up
 --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: http://1drv.ms/1nNpJeM
Discovery 4 Workshop Manual: http://bit.ly/22l8YHh
Range Rover/Sport L320/L322/L494 Workshop Manual: http://bit.ly/2iH7jgG 
 
Post #176198712th Jan 2017 7:57 am
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MrH
 


Member Since: 08 Aug 2007
Location: In a reliable car
Posts: 7724

United Kingdom 

Out of interest how much were the parts?
 LRs are a fond memory, apart from the maintenance.  
Post #181427012th May 2017 5:38 pm
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jack2006
 


Member Since: 12 Feb 2009
Location: Matlock, Derbyshire
Posts: 105

United Kingdom 2012 Discovery 4 3.0 SDV6 GS Auto Orkney GreyDiscovery 4
Cost of parts

Just done my 2012 D4 and cost from dealers which includes the oil drain plug for engine and plugs for automatic gearbox oil change that has yet to be done:-

LLR065237 £28.41
LLR087351 £27.01
LLR1013938 £3.35
LLR044555 £39.91
LLR013235 £2.29

If you have a look at the PDF in post's it is the LR document with the 3 part numbers required for oil return pipe replacement which is Pipe, Gasket and blank plate.

Biggest pain was removing the starter motor, although using 4 post lift to get access did make it easier

As per other posts can confirm it has worked a treat and no more smoke on 'kickdown'.

Don't forget to disconnect and drain the feed pipe also if you do mod as per LR document.
  
Post #18228495th Jun 2017 4:31 pm
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AdrianBBS
 


Member Since: 10 Aug 2015
Location: Limassol
Posts: 3

Cyprus 

Nice!
  
Post #18239257th Jun 2017 10:35 pm
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Kimi
 


Member Since: 26 Mar 2013
Location: FIN
Posts: 57

Finland 2012 Discovery 4 3.0 SDV6 HSE Auto Sumatra BlackDiscovery 4

The LTB mentions only TDV6 engine. Does the SDV6 have the same problem?
  
Post #18239928th Jun 2017 7:50 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18749

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Yes Rolling Eyes
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #18240138th Jun 2017 8:56 am
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mark the spark
 


Member Since: 22 Jun 2011
Location: southampton
Posts: 2239

2014 Discovery 4 3.0 TDV6 XXV LE Auto Causeway GreyDiscovery 4

to be fair mikey

only landrover would put two different engine related badges on the same engined car

im sure other examples will be forthcoming now ive said that
 MY05 SE D3 Manual my first LR what a car
MY10 HSE D4 auto
MY14 XXV more buttons than the spaceshuttle 
 
Post #18240168th Jun 2017 9:03 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 18749

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Indeed

It was resolved at some point through 13MY I believe Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #18240308th Jun 2017 9:38 am
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Syd
 


Member Since: 02 Nov 2008
Location: Spain & Hampshire UK
Posts: 860

United Kingdom 

I wonder if this fix is covered under Land Rover Approved Warranty Question Whistle
 In Spain - 2018 F Pace - Down and out's Velar
In UK - Dare not say on this Forum
Gone - Lots of Lode Lane vehicles.
- Beta User 
 
Post #18240578th Jun 2017 10:45 am
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