Diesel catalytic converters
Moderator: RichardW
Diesel catalytic converters
This might seem a simple question, but do any of you experts know the life expecancy of catalytic converters. I have a 1997, fully serviced, Xantia 1.9td estate which has done 126000 miles. What should I expect? Also, what would determine its demise.
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Never had one my self but our staff / plain cars have them. Mainly Renaults & Peugeot thought. Talking to one of the guys at our Park lane depot (some may know what that is) garage they said that the cat on a diesel will last for ever or untill you take the vehicle off road a little and hit a tree stump or simalr.
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To Allan - (amcc) yes, your Xantia will run just as well without the cat, but the world would be a dirtier place without it . . . so why remove it? Diesels have been accused of filling the air with pollutants and a cat is one way of reducing the emissions - and since it doesn't steal any power from your engine why not improve your conscience and let it be . .
//NiSk
//NiSk
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<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by NiSk</i>
and since it doesn't steal any power from your engine why not improve your conscience and let it be . .
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
I've just replaced my catalyst equipped exhaust with a non-cat pipe since it had rusted through, was beyond repair and a new cat-pipe would cost £100 more than a non-cat pipe.
Performance now is much better, especially below 2000rpm i.e. before the turbo is able to provide full boost, this points to the catalyst being partially blocked or in the very least, very restrictive.
If the catalyst was partially blocked, I can't see it doing its job very well at all. Once a catalyst becomes coated with soot, so that oxygen can't get at the catalyst surface, the catalyst doesn't work at all.
I don't have fuel economy figures as yet but when I do, I will publish them here.
and since it doesn't steal any power from your engine why not improve your conscience and let it be . .
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">
I've just replaced my catalyst equipped exhaust with a non-cat pipe since it had rusted through, was beyond repair and a new cat-pipe would cost £100 more than a non-cat pipe.
Performance now is much better, especially below 2000rpm i.e. before the turbo is able to provide full boost, this points to the catalyst being partially blocked or in the very least, very restrictive.
If the catalyst was partially blocked, I can't see it doing its job very well at all. Once a catalyst becomes coated with soot, so that oxygen can't get at the catalyst surface, the catalyst doesn't work at all.
I don't have fuel economy figures as yet but when I do, I will publish them here.
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The catastrophic perverter was a knee-jerk reaction to misguided and ignorant tree huggers by a panicked Government. They don't emit oxides of lead which can be excreted but oxides of Rhodium, palladium and platinum, at least two of which are very toxic. The hydrogen sulphide they produce combines readily with rain to form sulphuric acid and they use about 9% more fuel, producing 9% more CO2.
Diesel cats are almost certainly just as bad. Only morons would specify such a stupid thing to be fitted and if it is legal to remove it then you'll be doing the planet a favour.
Diesel cats are almost certainly just as bad. Only morons would specify such a stupid thing to be fitted and if it is legal to remove it then you'll be doing the planet a favour.
More a point with petrol ones (but whilst we're on the stupid legislation bandwagon)...
When CATs first came out (10-odd years ago), it was stated that they took 8 miles normal driving to get to fully operational temperature; up to this point they actually produced more harmful (although different) emissions than non-CAT cars of the time. The average journey distance 10-ish years ago was...9 miles. Foot, Shoot, Yourself, in the.......
When CATs first came out (10-odd years ago), it was stated that they took 8 miles normal driving to get to fully operational temperature; up to this point they actually produced more harmful (although different) emissions than non-CAT cars of the time. The average journey distance 10-ish years ago was...9 miles. Foot, Shoot, Yourself, in the.......