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Inlet Manifold replacement - Does it have new injector pipes
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Browny90
 


Member Since: 19 Jul 2016
Location: Ashbourne
Posts: 687

United Kingdom 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Santorini BlackDiscovery 4
Inlet Manifold replacement - Does it have new injector pipes

Hi All,

My MY12 D4 went in for an restricted performance in June.. turned out to be the n/s inlet manifold..

A few weeks later it had a major fuel leak (n/s injector pipes) and had to be recovered.

The dealership told me that when the inlet manifold is replaced they should have also replace the injector pipes..

Are these one use? i.e. once removed should they be replaced? I know we all would just refit, but what is the correct way?

Does anyone have any info on that MOD? where it says the pipes should be replaced??

They fitted 3 new injector pipes, but went back in today as it was leaking badly from (they think) the pump> rail pipe on the same side..

The service manager just told me they didn't have to replace that one but it seems to me that they would come as a sided kit?

So he's just tightened it.. I'm sceptical that its actually fixed the leak but I guess we'll see..

He said they wouldn't have touched the pump > rail pipe.. Disco4 MY16 SDV6 Landmark Black
Disco4 MY12 SDV6 XS Orkney Grey (Gone)
Defender 90 200tdi Completely rebuilt.  
Post #198310613th Sep 2018 1:38 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4

Correct! as per the workshop manual....

this because the cone that guarantees the seal (pipe side joint which is softer than the seat on the injector) is crushed when tight, and would not guarantee the seal in the subsequent re-tightening....

I remind you that there are 1600-1800bar inside this pipes... Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition

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Last edited by dgardel on 13th Sep 2018 8:30 pm. Edited 1 time in total 
Post #198321613th Sep 2018 8:26 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20727

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

The manual states that they should be replaced. In practice, I've never replaced an HP pipe... My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #198321713th Sep 2018 8:29 pm
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dgardel
 


Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025

Italy 2014 Discovery 4 3.0 SDV6 XXV LE Auto Santorini BlackDiscovery 4

I know it is common practice not to replace them, but sometimes they can leak....

Never had problems?

An official dealer, I believe, does not take responsibility...... Discovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition

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Post #198321913th Sep 2018 8:32 pm
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