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Pressure testing intercooler system
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timmyt79
 


Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585

Wales 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3
Pressure testing intercooler system

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Hi all,
So trying to get to bottom of ESF limp mode faults that I have been getting...made up a testing system butvwould appreciate if someone could pass a technical eye over my setup to ensure I'm testing right I currently cannot get it to hold any pressure at all eve with compressor pumping air in,I was aiming for around 20psi.
I can't hear any 'hissing' as such but can def hear air entering large pipe.I'm hoping that it is leaking from pipes / inter cooler TBH as hell of slot cheaper and easier than new turbo! :-/
I'm on 170K miles,blanked egr's ,and remapped if it helps,map sensor oily as in pic ,will of course clean along with maf.
Also I have lubed and moved turbo actuator and it's 'seems' OK.
Thanks in advance.
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Post #179389320th Mar 2017 1:54 pm
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beanie
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Member Since: 12 Mar 2011
Location: In the garage messing with something
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England 2013 Discovery 4 3.0 SDV6 GS Auto Fuji WhiteDiscovery 4

Do you not think you'll be loosing air via the open exhaust valves in the engine and out of the exhaust??

Just link out and block up the IC on the other side Thumbs Up Altox GSM FBH controller thread


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Post #179390820th Mar 2017 2:36 pm
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timmyt79
 


Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585

Wales 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Bloody hell your right...of course ill be losing pressure out of exhaust...i knew that of course! Whistle Rolling with laughter
So into large rubber hose and remove other hose right hand side of intercooler and block that right?Easy enough to get to?  
Post #179391320th Mar 2017 2:47 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

You also need to block off the PCV pipework, otherwise you loose pressure that way Thumbs Up My D3 Build Thread

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Post #179391920th Mar 2017 2:51 pm
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timmyt79
 


Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585

Wales 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

I assume thats the crank case vent?Where is best to block this off?sorry to sound dull... Whistle  
Post #179392220th Mar 2017 2:54 pm
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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

Has anyone mentioned how little pressure it needs to damage the intercooler.... Land Rover - Turning Drivers into Mechanics Since 1948

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Post #179392920th Mar 2017 3:09 pm
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adam
 


Member Since: 20 Sep 2005
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Slightly Off Topic

I understand the intercooler can sometimes contain engine oil - how does it get in there and can it ever get into the combustion process?  
Post #179393320th Mar 2017 3:17 pm
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timmyt79
 


Member Since: 18 Oct 2016
Location: Pemrokeshire
Posts: 585

Wales 2005 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Robbie wrote:
Has anyone mentioned how little pressure it needs to damage the intercooler....


Quite true,i was planning with no more than about 20psi but i believe the system 'should' be ok for up to 40psi?...... Whistle  
Post #179393620th Mar 2017 3:23 pm
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beanie
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Member Since: 12 Mar 2011
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England 2013 Discovery 4 3.0 SDV6 GS Auto Fuji WhiteDiscovery 4

adam wrote:
Slightly Off Topic

I understand the intercooler can sometimes contain engine oil - how does it get in there and can it ever get into the combustion process?


The crank case breather , if severe then leaky turbo seals Thumbs Up Altox GSM FBH controller thread


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D4 & RRS style D3 grilles made to order   
Post #179394120th Mar 2017 3:49 pm
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adam
 


Member Since: 20 Sep 2005
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Thumbs Up

And I assume blown Turbo seals would make themselves noticed anyway?  
Post #179394220th Mar 2017 3:50 pm
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Disco_Mikey
 


Member Since: 29 May 2007
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Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

From experience, it's good for 3bar

If it fails at a lower pressure, it had underlying issues Thumbs Up My D3 Build Thread

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Post #179394920th Mar 2017 4:34 pm
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Erea
 


Member Since: 19 Mar 2012
Location: Munster
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Ireland 2006 Discovery 3 TDV6 Commercial Manual Zambezi SilverDiscovery 3

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I might be very wrong here but.......
Surely if you are pumping air in there it's out the air filter it should go? Not the exhaust Whistle
From where you are pumping in the air it should go through the intercooler through the turbo and back to the filter/ air intake? But from the air intake to the turbo those pipes would be designed for a slight vacuum not pressure, so putting pressure on those might cause them to blow off their connections?

Open to be correction here. Whistle  
Post #179397220th Mar 2017 5:34 pm
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