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Split/Cracked Intake Manifold - Fix Steps
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Nitro159
 


Member Since: 21 Jul 2021
Location: Surrey
Posts: 7

United Kingdom 2011 Discovery 4 3.0 TDV6 Landmark LE Auto Fuji WhiteDiscovery 4
Split/Cracked Intake Manifold - Fix Steps

Hi all,

I have been quietly browsing as a guest for a while, that is until today when I discovered my inlet manifold (RH, drivers side) had cracked. Diagnosed after freeing up the secondary turbo bypass actuator and replacing the vacuum pipe that engages it, friend revved the car and I saw it lift as pressure boosted up. Presumably the sticking bypass valve led to an overpressure event, and as most D4 owners know, the inlet manifold is a point of weakness (many threads cover this).

I know my way around spanners, sockets and whatnot. So I am embarking on this repair myself, which is where this forum comes in.

I have the workshop manual in PDF form (all 5528 pages of it) but cannot locate the sections (or the correct order) to tackle this in. I would use the coding (303-01C for example) but it does not appear to be printed on my PDF version.

Any help would be appreciated, if I have missed a post on the search results that has a "how-to" or "step-by-step" guide I apologise, the best I have found is mentions of removing various parts and some tricky situations RE the injectors and other bits to replace whilst I am in situ. So if anyone does have a guide, or knows which pages/page titles to go from and tackle this I would appreciate it.

I intend on documenting it myself for posting up afterwards should anyone be interested.
  
Post #224282221st Jul 2021 8:37 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20830

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

https://www.disco3.co.uk/gallery/albums/userpics/12622/RHVC.pdf

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Post #224285622nd Jul 2021 6:46 am
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Nitro159
 


Member Since: 21 Jul 2021
Location: Surrey
Posts: 7

United Kingdom 2011 Discovery 4 3.0 TDV6 Landmark LE Auto Fuji WhiteDiscovery 4

Thank you kindly, is there somewhere I missed where these documents are all stored? I am looking to replace both sides (may as well whilst I am there) and understand the procedure for the LHVC is different?
  
Post #224342125th Jul 2021 4:57 pm
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Nitro159
 


Member Since: 21 Jul 2021
Location: Surrey
Posts: 7

United Kingdom 2011 Discovery 4 3.0 TDV6 Landmark LE Auto Fuji WhiteDiscovery 4

Apologies for the bump

So after destroying a breather pipe (brittle as heck!) I’ve found myself stuck behind the rubberised cover (not the removable one) attached to the top of the inlet manifold. Absolutely cannot find out how to remove it without damaging it and presumably I want to attach it to the replacements? Also fun fact, the oily residue behind it on the top-most leading edge is confirming the crack is right behind this rubber piece Smile

Any advice would be appreciated!
  
Post #224600910th Aug 2021 6:55 pm
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andywhi
 


Member Since: 07 Sep 2021
Location: Oldham
Posts: 1

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Zermatt SilverDiscovery 4

Just wondering how you got on? I'm planning on tackling the driver's side manifold (after it decided to let us down going on holiday) and still undecided on whether it's too much of a job. Quote from garage at £800ish Shocked just for the drivers side is persuading the DIY route
  
Post #22500967th Sep 2021 8:20 am
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Nitro159
 


Member Since: 21 Jul 2021
Location: Surrey
Posts: 7

United Kingdom 2011 Discovery 4 3.0 TDV6 Landmark LE Auto Fuji WhiteDiscovery 4

Hi Andy,

I didn’t get as far as I would have liked really. Stripped back to the fuel pipes and whilst removing the injectors had one that just would not budge from its line. I decided to get a garage involved rather than cause damage myself Sad
  
Post #225759018th Oct 2021 2:00 pm
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Discofixer2
 


Member Since: 05 Nov 2022
Location: Stafford
Posts: 13

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Disco_Mikey wrote:
https://www.disco3.co.uk/gallery/albums/userpics/12622/RHVC.pdf

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thanks for sharing the link for the manual.
I've got the Ebay special pdf and its impossible to find anything.

Can you buy the rest of the manual?
I'd be very interested to get my hands on it.

Got the RH air intake manifold leak and getting P0006A and P1247 faults which is kind of expected.
Picture below if the smoke test.
  
Post #23139877th Nov 2022 2:22 pm
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Discofixer2
 


Member Since: 05 Nov 2022
Location: Stafford
Posts: 13

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

  
Post #23139887th Nov 2022 2:22 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2889

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Does anyone have the left hand version of this manual, Mikey has posted the Right one but I need the left one

If anyone can share it would be appreciated!

Disco_Mikey wrote:
https://www.disco3.co.uk/gallery/albums/userpics/12622/RHVC.pdf

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 Must stop buying shiny toys....  
Post #233974718th Jun 2023 10:15 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20830

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Try this: https://www.disco3.co.uk/gallery/albums/us...jlrext.PDF
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #233975218th Jun 2023 11:21 am
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Discofixer2
 


Member Since: 05 Nov 2022
Location: Stafford
Posts: 13

United Kingdom 2011 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

https://www.disco3.co.uk/forum/topic202652.html

If you are going to replace the inlet manifold(s), read the above post first and it will save you making the same mistakes I did.
  
Post #233983119th Jun 2023 10:38 am
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2889

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Disco_Mikey wrote:
Try this: https://www.disco3.co.uk/gallery/albums/us...jlrext.PDF


Great!
Thank you so much!
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 Must stop buying shiny toys....  
Post #233996520th Jun 2023 5:45 pm
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darrind
 


Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2889

England 2013 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Discofixer2 wrote:
https://www.disco3.co.uk/forum/topic202652.html

If you are going to replace the inlet manifold(s), read the above post first and it will save you making the same mistakes I did.


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 Must stop buying shiny toys....  
Post #233996820th Jun 2023 5:50 pm
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Guineafowl21
 


Member Since: 03 May 2021
Location: Inverness
Posts: 12

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

Disco_Mikey wrote:
https://www.disco3.co.uk/gallery/albums/userpics/12622/RHVC.pdf

Thumbs Up


I’ve got the right-hand manifold to do on the D4 2010. Looking at the procedure above ^^^, it seems fairly straightforward (I know, I know…). Everyone mentions 8 hours to do it. What is it that takes the time?
  
Post #235881313th Jan 2024 1:53 pm
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Carl and Petra
 


Member Since: 13 Feb 2015
Location: Hautes Pyrenees
Posts: 219

France 2015 Discovery 4 3.0 TDV6 SE Auto Sumatra BlackDiscovery 4

What i found took time was ....everything!
There are so many steps that it just takes time.

The fixings and bolts at the bulkhead side are very awkward as even after you have removed the coolant crossover pipe and the battery cable and long tray above it ( this is the power cable from the battery over to the stop start battery ) you are then leaning over the enging working by touch to remove brackets for the fuel pipes and the manifold bolts themselves desperately trying not to drop your tools or the fixing bolts themselves....blue tac was helpful here.
Not to mention removing the stop start battery and tray and everything that is in the way of the bolts holding the egr valve that need loosening to even get the fuel rail bolts out!
Once you have done that you are stripping out the fuel lines to the injectors and then having fun removing them.
I found a conventional slide hammer was excellent removing these even though people will tell you that you need a slide hammer for injectors....you do not, gentle and patient application of a normal slide hammer will do the job if you already have one.

Then the fuel rail comes out and more besides.

He time is just in how much you have to remove, place safely, photos so you do not forget, and cups of tea!

It really does take time.
  
Post #235882713th Jan 2024 4:02 pm
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