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CRJ



Member Since: 12 Mar 2011
Location: Sealand - Denmark
Posts: 253

Denmark 1991 Defender 90 200 Tdi ST Alpine White
Decat and Mot?
As I need to take of my turbo in order to fix the leak between the manifold and turbo, I think it would be the right time to fit a decat pipe - but how about pollution levels? in Denmark the car is checked every second year, by measuring the exhaust while flooring the pedal 3 times in neutral Shocked it really hurts... Is there any measurable increase in pollution without cat?
Regards
CRJ 88 Ser. 3 1980 -sold
Puma 130 - 08- sold
90 200tdi 1991 - sold
88 Ser. 3 1977 200 TDI
110 CC 2003
Post #104468 4th Dec 2011 12:49pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5574

2006 Defender 110 Td5 USW Zermatt Silver
Are they checking for particles/soot, or emission gases?

If soot as in the UK, removing the cat helps, but if checking gases you may have to keep it, or put it back on for the test.

Andy
Post #104469 4th Dec 2011 12:52pm
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CRJ



Member Since: 12 Mar 2011
Location: Sealand - Denmark
Posts: 253

Denmark 1991 Defender 90 200 Tdi ST Alpine White
They are checking the co2 level - I think.

CRJ 88 Ser. 3 1980 -sold
Puma 130 - 08- sold
90 200tdi 1991 - sold
88 Ser. 3 1977 200 TDI
110 CC 2003
Post #104470 4th Dec 2011 12:58pm
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BigMike



Member Since: 13 Jul 2010
Location: Lancashire
Posts: 2253

United Kingdom 
I don't think it would make any difference at all. Cats only work at sustained vehicle speed / revs anyway. A quick blast of the throttle and the cat does nothing at all.
Post #104471 4th Dec 2011 12:59pm
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CRJ



Member Since: 12 Mar 2011
Location: Sealand - Denmark
Posts: 253

Denmark 1991 Defender 90 200 Tdi ST Alpine White
Ok thanks a lot - I guess I will give it a go - maybe along with a mid pipe replacement. Twisted Evil
CRJ 88 Ser. 3 1980 -sold
Puma 130 - 08- sold
90 200tdi 1991 - sold
88 Ser. 3 1977 200 TDI
110 CC 2003
Post #104473 4th Dec 2011 1:04pm
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szracer



Member Since: 10 Oct 2010
Location: Cotswolds
Posts: 356

England 2010 Defender 110 Puma 2.4 USW Stornoway Grey
...was just waiting for K9F to come back with a list of threads.... Wink Whistle 
2010 110 XS USW (the slow one)
1960 Alfa Romeo Giulietta SZ (the fast one)
2005 Ducati ST3
1954 Sunbeam S8
Post #104476 4th Dec 2011 1:12pm
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CRJ



Member Since: 12 Mar 2011
Location: Sealand - Denmark
Posts: 253

Denmark 1991 Defender 90 200 Tdi ST Alpine White
well tried the search at first - decat+mot - but nothing relevant showed up.....know I canīt be the first asking about this......
CRJ 88 Ser. 3 1980 -sold
Puma 130 - 08- sold
90 200tdi 1991 - sold
88 Ser. 3 1977 200 TDI
110 CC 2003
Post #104477 4th Dec 2011 1:16pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
szracer wrote:
...was just waiting for K9F to come back with a list of threads.... Wink Whistle


Too slow but they are there....Bet you looked! Rolling with laughter If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #104481 4th Dec 2011 2:11pm
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driver



Member Since: 02 Aug 2009
Location: bude , cornwall
Posts: 204

United Kingdom 2007 Defender 90 Puma 2.4 HT Stornoway Grey
De cat and mid pipe
I have replaced the down pipe witha de cat version and the centre box with a replacment box so the only silencer is the rear one now, It has passed the last 2 MOT's with this set up without a word from the examiner about this change interestingly the emmisions now are down by a third compared to befor these changes and has got a "fast pass" both times.
Post #104489 4th Dec 2011 3:19pm
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T1G UP



Member Since: 08 Dec 2009
Location: Bath
Posts: 3101

England 2011 Defender 110 Puma 2.4 XS CSW Orkney Grey
i think i'll de cat mine and get an alive centre pipe with a little centre box
Post #104492 4th Dec 2011 3:22pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
CRJ wrote:
well tried the search at first - decat+mot - but nothing relevant showed up.....know I canīt be the first asking about this......CRJ


You're not! Oh well here we go.... Laughing Proverbial K9 list coming up!

http://www.defender2.net/forum/topic9379.h...spectively

http://www.defender2.net/forum/topic8411.h...p;start=15 If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #104515 4th Dec 2011 4:28pm
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CRJ



Member Since: 12 Mar 2011
Location: Sealand - Denmark
Posts: 253

Denmark 1991 Defender 90 200 Tdi ST Alpine White
Re: De cat and mid pipe
driver wrote:
I have replaced the down pipe witha de cat version and the centre box with a replacment box so the only silencer is the rear one now, It has passed the last 2 MOT's with this set up without a word from the examiner about this change interestingly the emmisions now are down by a third compared to befor these changes and has got a "fast pass" both times.

Is there a noticeable effect - apart from the sound? And K9F you are risking getting a PM from me the next time I canīt find what I am looking for Wink
Best regards
CRJ 88 Ser. 3 1980 -sold
Puma 130 - 08- sold
90 200tdi 1991 - sold
88 Ser. 3 1977 200 TDI
110 CC 2003
Post #104532 4th Dec 2011 5:53pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
CRJ,

'PMs' always wecome! Only too glad to be of assistance. I know how frustrating it can be searching for something, putting in a key word and being inundated with duplicated threads.

Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #104539 4th Dec 2011 6:08pm
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Kez



Member Since: 11 Apr 2011
Location: UK
Posts: 271

Isle Of Man 
Mine also has no cat or centre box, has passed two MOT's with no comment.

BUT it will throw up engine warning light now and again (I just reset mine with a scanguage) - when I mentioned this at its last service the main dealer said warning its 'due to the improvement in gas flow and nothing to worry about'.
Post #104764 5th Dec 2011 6:02pm
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Alive Tuning



Member Since: 01 Mar 2010
Location: Louth
Posts: 609

United Kingdom 2013 Defender 90 Puma 2.2 XS CSW Havana
Kez wrote:
BUT it will throw up engine warning light now and again (I just reset mine with a scanguage) - when I mentioned this at its last service the main dealer said warning its 'due to the improvement in gas flow and nothing to worry about'.


No, that is not at all normal. We have fitted countless downpipes and exhaust systems to Puma's, and not ever (to my knowledge) had an engine warning lamp illuminated.
Post #104765 5th Dec 2011 6:07pm
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