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TonyH
Member Since: 01 Mar 2006
Location: Market Drayton, Shropshire
Posts: 211
  
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Just a couple of basic questions regarding blanking EGR valves.
I have read that turbos can seize if the exhaust gas temperatures get very high for longish periods, as the lubrication will fail due to the increased heat. Is this likely to happen if the EGR valves are blanked off?
Secondly, will blanked EGR's result in increased exhaust emissions over and above Euro IV compliance?
I am asking these questions as I am due to have a turbo replacement and I am considering whether to get the EGR's blanked at the same time. *Disco3 7-seat Auto
March 2006
Zermatt silver
*Disco TD5 GS Manual
2001
Epson Green
108,000 miles without a single problem
*Disco TD200 Manual
1993
Bonatti Grey
55,000 trouble-free miles
*Various company cars, no comparison
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 29th Aug 2010 10:20 am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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Tony, if you blank the EGR's then there will be NO exhaust gasses being re-cycled, so less gunk to be gunked up in the first place.
EGR blanking has resulted from others onhere in reduced emmissions as it burns cleaner with clean incoming air.
No-one has so far failed MOT due to EGR blanking to my knowledge.
If your taking it to Shukers I don't think they'll blank them off for you. Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 29th Aug 2010 10:48 am |
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MacLeod 313
Member Since: 18 Apr 2008
Location: away
Posts: 10723
 
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EGR Blanking does NOT affect your MOT, Diesels are measured on Particles and NOT emmisons like Petrol versions. I have Blanked my TD5 and last week my FL1, and none have had MOT problems, and both become more responsive, and economical. Next service with TFC will be fitting a BAS EGR removal kit to the Disco 3 
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| 29th Aug 2010 11:03 am |
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TonyH
Member Since: 01 Mar 2006
Location: Market Drayton, Shropshire
Posts: 211
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Thank's folks. Hi Bodsy, I use Stratsone at Stoke but I guess they will take much the same approach as Shukers. Do you know the reference for the turbo software patch for low mileage vehicles. I need to be armed with some info when it goes in for the diagnostic check on Tuesday. *Disco3 7-seat Auto
March 2006
Zermatt silver
*Disco TD5 GS Manual
2001
Epson Green
108,000 miles without a single problem
*Disco TD200 Manual
1993
Bonatti Grey
55,000 trouble-free miles
*Various company cars, no comparison
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| 29th Aug 2010 1:33 pm |
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disco_steve
Member Since: 25 Aug 2009
Location: Are you sure this is the M5 ?
Posts: 1498
 
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Blanking your EGR's has NO effect on a MOT test, mine were done about a month ago, and the particle test results during my MOT yesterday are actually slightly better than last year
(even though my local 'posh' dealer tried hard to convince my that it would fail if I didn't cough up £600 for new EGR valves, yeah RIGHT  )
Oh, and overall, my MPG is around 3-5mpg better as well  Never get mad - get even !!
06 D3 now gone to family member and still going strong at 265k
previous vehicles:
04 D2 TD5 - (clocked 189k from new)
52 X-Trail 2.2 SVE
various euro boxes !
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| 29th Aug 2010 5:44 pm |
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1964landyman
Member Since: 21 Jan 2008
Location: Leicestershire
Posts: 24
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Hi, I have removed the O/S EGR valve on my 07 V6 tonight and there's no way I,m putting that torx screw back in  .
Can anybody point me in the right direction please for replacemant bolts (the same as the ones that hold the pipe to the valve body please as per the information on here). Is there a L/R part number that anybody has or are they standard bolts available from any garage?
I should have the new EGR valves with me tomorrow so need to sort some bolts out prety smartish 
Thanks. 2007 Series 3 HSE
2000 Series 2 ES
1997 Series 1 GS
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| 4th Jul 2011 11:10 pm |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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LR dealer should have them. Or get standard bolts from any hardware store. Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 4th Jul 2011 11:11 pm |
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euangibson
Member Since: 24 Dec 2010
Location: Borders
Posts: 11027
 
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Just out of interest......about to start the process of getting TFC up here for my next service,and seriously considering getting this done...before I start bugging him,does he have his own blanking kit or do I need to get the BAS kit first ? "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...
Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights
D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do...
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| 5th Jul 2011 9:03 am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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You could always give him a call.....? although ISTR he keeps a stack of them. Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 5th Jul 2011 3:54 pm |
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euangibson
Member Since: 24 Dec 2010
Location: Borders
Posts: 11027
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I just e-mailed him a short time ago to ask 1. if he would be willing to come this far 2. rough estimate of service costs and 3. if he has blanking kits....
I know he is very busy so not expecting a quick response,but then I'm in no hurry so no worries either way "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...
Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights
D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do...
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| 5th Jul 2011 4:00 pm |
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1964landyman
Member Since: 21 Jan 2008
Location: Leicestershire
Posts: 24
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Job completeed last night and the dash light has now gone off after the third start so I must have done something right
I found the N/S harder than to do than the O/F for two reasons, firstly, two of the three long valve body bolts foul on part of the exhaust so had to remain loose in position whilst the assembly was withdrawn. This means there is a risk of them dropping out on removal and getting lost in the depths somewhere. Secondly, I found the inside torx bolt harder to get at due to the addional pipework in the way. In fact I spent 20 minutes just looking at it thinking there was no way I was going to be able to get at it, let alone remove it. 
In the end I replaced the torx bolts and valve flange bolts with Stainless ones so hopefully they should last now. (The valve flange bolts were very coroded).
For what it's worth, a couple of my tips for anybody looking at doing this job are:
Pack some rags down below the valves so that if anything drops, as it probably will , then it can be retrieved. Even doing this I still managed to loose the N/S, inside torx screw.
Secondly, to get at those torx screws, I used a 150mm long flexible 1/4" drive socket extension and I don't see how I would have done it without this.
Anyway, job is now a goodun. Hopefully will last another 40K miles
Thanks to Disco_Mikey and other posters for giving me the confidence to tackle this myself, without this forum I would be few quid lighter by now 2007 Series 3 HSE
2000 Series 2 ES
1997 Series 1 GS
Last edited by 1964landyman on 6th Jul 2011 1:18 pm. Edited 1 time in total
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| 6th Jul 2011 1:16 pm |
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ZacSmith
Member Since: 26 Aug 2010
Location: Dover
Posts: 709
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euan
TFC blanked mine with his own blanks - £45+VAT VIN: A175A328***
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| 6th Jul 2011 1:18 pm |
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philx
Member Since: 17 Jul 2011
Location: England
Posts: 28
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sorry to be dim but if its so much better to blank these off why are they fitted in first place.....? is there a downside from blanking then off? 2 Freelanders 1 Range Rover Classic 1 Defender 1 Lightweight but first Disco 
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| 26th Jul 2011 12:56 am |
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Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20727
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They are fitted to allow the engine to pass various emission requirements, however, they are a sh*t design, and very common for failing, and also very expensive to replace.
Much cheaper to just blank them off, and forget about them, as they are not needed for an MOT etc
The only downside is on 07MY or newer, the engine management light will stay on My D3 Build Thread
TDV8 Retrofit Build Thread
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| 26th Jul 2011 6:30 am |
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1964landyman
Member Since: 21 Jan 2008
Location: Leicestershire
Posts: 24
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Just out of curiosity, I took the motors off the end of the valve bodies of the old EGR valves to see how they worked.
From what I could see, the failure on the O/S valve was a small bearing which runs along a helical track which translates the rotation of the motor shaft into an axial movement of the valve stem. The Valve itself, although black with carbon, was not seized or dificult to move. The N/S valve appeard to be OK.
There was also a difference in the action of the motors when rotating the motor spindle by hand, and I think that this was probably the actual failure which caused the dash light to come on. On the failed one, the motor shaft could be just rotated continuously whereas on the good one, the spindle appeared to rotate against a spring so that the valve would open when power was applied to the motor and would close again automatically when the power to the motor was removed. I guess that this one was working correctly and that there was a broken spring in the other motor assembly - but this is just a guess. 2007 Series 3 HSE
2000 Series 2 ES
1997 Series 1 GS
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| 26th Jul 2011 8:45 am |
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