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mattyboy



Member Since: 14 Feb 2012
Location: Colchester Essex
Posts: 28
United Kingdom 2003 Range Rover Vogue 4.4 V8 Oslo Blue
coolant pressure

Does anyone know what the running pressure of a 4.4 v8 coolant system should be? I know they run higher than most to increase the coolant temp, but what should it be when hot?

kind regards
Post #144795 5th Oct 2012 9:53am
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nicedayforit



Member Since: 11 Jun 2011
Location: Beside the Solway
Posts: 3988
England 2004 Range Rover Vogue Td6 Giverny Green

Is it not marked on the coolant bottle cap?
Post #144799 5th Oct 2012 10:10am
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stan
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Member Since: 13 Jul 2010
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on rave? ... - .- -.




Y. O. L. O.
.
Post #144826 5th Oct 2012 1:09pm
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Mikeyjd



Member Since: 14 Jun 2011
Location: Wrexham
Posts: 543
Wales 2003 Range Rover SE Td6 Zambezi Silver

As above it should be on the cap. No longer FF owner but still interested. Present car Jaguar XE
............................................

Previous car Td6 SE
................................

Previous LR- Disco 300TDi Auto
Post #144894 5th Oct 2012 7:24pm
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mattyboy



Member Since: 14 Feb 2012
Location: Colchester Essex
Posts: 28
United Kingdom 2003 Range Rover Vogue 4.4 V8 Oslo Blue

mine just has 200 on it???
Post #145265 8th Oct 2012 9:30am
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Simes



Member Since: 30 Aug 2011
Location: Hinckley
Posts: 964
United Kingdom 2011 Range Rover Autobiography Black TDV8 Barolo Black

2 atmospheres.

2.00 bar!
Post #145269 8th Oct 2012 9:37am
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nicedayforit



Member Since: 11 Jun 2011
Location: Beside the Solway
Posts: 3988
England 2004 Range Rover Vogue Td6 Giverny Green

200 kPa which equates to 29psi or 2Bar.
Interestingly a td6 runs at 140kPa.
Post #145275 8th Oct 2012 9:59am
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47p2



Member Since: 05 Oct 2010
Location: Gone Beyond, Subaru
Posts: 8048
Scotland 

Higher pressure allows for higher temperatures before the water boils and turns to steam
Post #145284 8th Oct 2012 10:43am
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mattyboy



Member Since: 14 Feb 2012
Location: Colchester Essex
Posts: 28
United Kingdom 2003 Range Rover Vogue 4.4 V8 Oslo Blue

Thanks for that, the reason I asked was last week my header tank burst open (which I know is a common fault) So I thought i'd just check the system pressure to make sure that it wasn't caused by HG failure. Which I'm pleased to see it wasn't!

thanks again
Post #145289 8th Oct 2012 11:34am
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