Home > Technical > Diesel Particulate Filters |
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Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2638 |
SA-spec 2.2 Pumas do not have a DPF due to the poor diesel we have here and in surrounding countries. -- 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 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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3rd Jan 2012 10:53am |
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T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101 |
NO DPF on 2.4. For me it's a step to far on a defender, hence buying the last of the 2.4s |
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3rd Jan 2012 10:58am |
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T1G UP Member Since: 08 Dec 2009 Location: Bath Posts: 3101 |
READ ALL ABOUT IT!
http://www.ford.co.uk/Commercialvehicles/Transit/Top-Features |
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3rd Jan 2012 11:02am |
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Happyoldgit Member Since: 14 Sep 2007 Location: Norfolk Posts: 3471 |
I feel the same. As I do quite a bit of short journey work I may just hang onto my current 2.4 Puma. Steve. Owned numerous Land Rover vehicles of all shapes and sizes over the decades. Current Defender: A non tarts hand-bagged Puma 110 XS USW. [Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc] http://forums.lr4x4.com I used to be Miserable ...but now I'm ecstatic. |
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3rd Jan 2012 12:24pm |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
This quoted from LRO magazine.
Many current particulate filters need you to drive 10-30 minutes at 2500 plus RPM to regenerate the filter and this has caused problems for some such as couriers with their stop start driving. 'Getting this right was one of the trickiest parts of fitting the engine' explains Gary Taylor, Chief Programme Engineer on the Defender. We spent a week with energy provider EON staff and designed a re-gen cycle that would work for them. Analysing the data we realised we couldn't just shove the DPF under the vehicle, not only would it be in harms way but it wouldn't get hot enough to regenerate itself. They moved the DPF on to the down pipe - as close to the engine as they could get it. 'The result is that the DPF can be regenerated in about 10 minutes driving at just 20 mph, something that most users can attain. We've had two Defenders out with farmers for eight months and they haven't had problems', says Taylor. Doesn't sound to be a very thorough test to me I wonder if the farmers were working in minus temperatures |
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3rd Jan 2012 5:00pm |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 8027 |
two!!! wow they have pushed the boat you.
What they mean is they have learnt from the RRV that it needs to be closer to the engine! Cheers James 110 2012 XS Utility 130 2011 M57 bespoke Camper 90 2010 Hardtop 90 M57 1988 Hardtop |
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3rd Jan 2012 5:10pm |
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Ed2 Member Since: 11 Oct 2010 Location: North Essex Posts: 79 |
This filter looks to me like an unnecessary extra that nobody wants (except the EU of course), something thats absolutly asking to go wrong and most likely just after its out of guarantee. I can just imagine the scene when you go in for an MOT and it passes, except for the filter, so that £1400 please.
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4th Jan 2012 7:03pm |
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Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5013 |
Thought I read somewhere that vehicles with DPF actually use a little more fuel as the engine is being choked further
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4th Jan 2012 7:14pm |
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Ed2 Member Since: 11 Oct 2010 Location: North Essex Posts: 79 |
How does a DPF acually work? Does anyone know? Being called a filter it would suggest it captures the soot, but what happens when that builds up? Is this what regeneration is? Does that involve a separate burning off automatically?
Dunno, sounds like a lot to go wrong to me.. |
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4th Jan 2012 7:27pm |
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BigMike Member Since: 13 Jul 2010 Location: Lancashire Posts: 2253 |
Thats pretty much it. Great eh? Holds soot back, then you have to hold it at speed to burn it all off. Utterly utterly ridiculous. |
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4th Jan 2012 7:40pm |
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