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Bourgui



Member Since: 15 Oct 2018
Location: Muscat
Posts: 23
Oman 2010 Defender 110 Puma 2.4 DCPU Alaska White
Puma 2.4 ROW questions
Good day,

Couple of months ago I fell in love with a 110 crew cab, former UN vehicle ROW specs.

It drives like a charm! (Allisport inrercooler, silicone hoses, air box mod... may be helping tho!)

However, when I read the VIN at the stealer, it says « no pressure control release valve », can anybody enlighten me?

It also says « non cat », but the cat shell is present, any idea of how to check if the shell is full without dismantling it?

Cheers,
Bourgui
Post #734758 15th Oct 2018 4:50am
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2584
South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Not sure about the 'no pressure control release valve', but if the build says no car, then you don't have to worry.

Most of us in ZA cut out the cat if it is present by just dropping the pipe and drilling the cat out. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
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Post #734763 15th Oct 2018 6:54am
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Bourgui



Member Since: 15 Oct 2018
Location: Muscat
Posts: 23
Oman 2010 Defender 110 Puma 2.4 DCPU Alaska White
Thanks Naks for your reply, seems that I’ll be disconnecting the cat pipe to check whether it is full or not!
Post #734772 15th Oct 2018 8:30am
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Bourgui



Member Since: 15 Oct 2018
Location: Muscat
Posts: 23
Oman 2010 Defender 110 Puma 2.4 DCPU Alaska White
After checking the cat was full! I had it emptied and response is much better & consumption decreased a lot also! (on my second tank so still monitoring!

I have looked all over lots of forums and cannot find anything about the « no pressure control release valve ». I gave a call to LR and they don't know either. Anybody?
Post #738559 4th Nov 2018 2:45pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6264
England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
can't imagine it is this but to my mind sounds like the valve at the end of the common rail (fuel). ?
Post #738570 4th Nov 2018 3:41pm
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Bourgui



Member Since: 15 Oct 2018
Location: Muscat
Posts: 23
Oman 2010 Defender 110 Puma 2.4 DCPU Alaska White
One of the first things I checked! Valve is there...
They said non cat and cat was full, they said no pressure control release valve, let's assume there is one! Who knows? Rolling Eyes

I would still prefer to have the information of what it is though...
Post #739325 8th Nov 2018 12:06pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16855
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I wonder if the reference to "no pressure control release valve" is in fact referring to an absence of a positive crankcase ventilation valve on the engine breathing system? It may be that an ROW spec Defender is built for a less restrictive emissions regime where the crankcase can vent straight to atmosphere.

It cannot refer to the pressure control valve on the fuel rail,. which must be present.
Post #739336 8th Nov 2018 1:32pm
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dailysleaze



Member Since: 23 May 2013
Location: United Kingdom
Posts: 237
United Kingdom 
I would suspect it means no "pressure reducing valve" in the braking system, as it's fitted to 110 pickups but not SW
Post #739489 9th Nov 2018 11:46am
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jwb



Member Since: 30 Oct 2012
Location: Los Angeles
Posts: 27
United States 
I agree. You likely do not have an ANR1415 in line next to brake master cylinder. If you look in topix, it will probably show ROW Euro 2 spec as well.
Post #740050 12th Nov 2018 3:09pm
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Bourgui



Member Since: 15 Oct 2018
Location: Muscat
Posts: 23
Oman 2010 Defender 110 Puma 2.4 DCPU Alaska White
Thanks for your answers!
Crankcase ventilation is there - I am still hesitating to install an oil catch can but I have mixed feelings on that.

Seems that the brake thingy you mentioned is not there. And yes it is a EU2 specs. Looked a bit on different forums but can not find the purpose of this valve?
Post #740621 15th Nov 2018 7:24am
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