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I have a smelly cat

I have a smelly cat

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fluff
Senior Member
688
13-05-2017, 12:17 PM
#1
Evening peeps. I wonder if I have a pending problem. If I leave my Lexus for a couple of weeks and start it up, you can't smell anything bad from the exhaust. My Micra doesn't smell either, but the Honda smells of rotten eggs. The smell does go away after a few minutes though. I have no engine warning lights or anything, it's just done a 300 mile run with no problems at all. It doesn't feel slugish for a 1,4 with a four speed auto, it's just the cat smells when starting in the morning. Am I looking at a new cat come MOT time and if so, where would one get one as I think Honda would want both my arms, legs and kidneys.

Many thanks.

Jimbo.
fluff
13-05-2017, 12:17 PM #1

Evening peeps. I wonder if I have a pending problem. If I leave my Lexus for a couple of weeks and start it up, you can't smell anything bad from the exhaust. My Micra doesn't smell either, but the Honda smells of rotten eggs. The smell does go away after a few minutes though. I have no engine warning lights or anything, it's just done a 300 mile run with no problems at all. It doesn't feel slugish for a 1,4 with a four speed auto, it's just the cat smells when starting in the morning. Am I looking at a new cat come MOT time and if so, where would one get one as I think Honda would want both my arms, legs and kidneys.

Many thanks.

Jimbo.

Moley
Posting Freak
6,230
13-05-2017, 12:33 PM
#2
Think it just needs a good thrash

Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice
Moley
13-05-2017, 12:33 PM #2

Think it just needs a good thrash


Lexus IS200 Mods--TTE Supercharger, Tein Superstreet Coilovers & EDFC, 6000K HID Lights, HKS Silent High Power Exhaust, DBA Front Discs, Kenwood DNX9240 Head Unit, 19" Rims, TRD Kit, FIGS Bonnet Struts, Greddy Pillar Pod & Defi Gauges, TTE Red ARBS . And Been To WIM twice

DaveEdin
Posting Freak
5,657
13-05-2017, 12:34 PM
#3
Think you should just bash it up a private road at 100mph for a while jim, that oughta clear it out?
DaveEdin
13-05-2017, 12:34 PM #3

Think you should just bash it up a private road at 100mph for a while jim, that oughta clear it out?

ormi
Posting Freak
3,006
13-05-2017, 12:35 PM
#4
nothing to worrie about mate the rovers with honda engines....they always smelled of rotten eggs....

[Image: ormiedit1-2.jpg]
TTE supercharger,pr0lex manifold,hks fcd,larger intercooler,apexi induction kit,silicone hose kit,IK22's,polished engine parts,TTE front bumper mod'd for intercooler,TRD side skirts,TRD rear lip,JDM headlights and fogs,10k hid headlights 8k full beam,L8XSS p/plate,fog/brake/light conversion,18"fox rs's,lowered 90mm(f)100mm®,moleys under bars,yellow trd anti rollbars,full stainless exhaust,carbon fiber intake plus so much more
ormi
13-05-2017, 12:35 PM #4

nothing to worrie about mate the rovers with honda engines....they always smelled of rotten eggs....


[Image: ormiedit1-2.jpg]
TTE supercharger,pr0lex manifold,hks fcd,larger intercooler,apexi induction kit,silicone hose kit,IK22's,polished engine parts,TTE front bumper mod'd for intercooler,TRD side skirts,TRD rear lip,JDM headlights and fogs,10k hid headlights 8k full beam,L8XSS p/plate,fog/brake/light conversion,18"fox rs's,lowered 90mm(f)100mm®,moleys under bars,yellow trd anti rollbars,full stainless exhaust,carbon fiber intake plus so much more

Lexusboy
Posting Freak
9,267
13-05-2017, 09:19 PM
#5
Jim i know your already charge the air con in the Honda.
That is normally the smell of rotten eggs, have you given the air con a good blast since its been charged?
Lexusboy
13-05-2017, 09:19 PM #5

Jim i know your already charge the air con in the Honda.
That is normally the smell of rotten eggs, have you given the air con a good blast since its been charged?

parthiban
Posting Freak
4,925
13-05-2017, 10:55 PM
#6
Lol I thought we were talking about the animals :lol:

I've got to admit the Lexus sometimes smells a bit if I start it up from cold and leave it idling on the drive - not a bad egg smell or anything though, it's more of an "automotive" smell.........

2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]
parthiban
13-05-2017, 10:55 PM #6

Lol I thought we were talking about the animals :lol:

I've got to admit the Lexus sometimes smells a bit if I start it up from cold and leave it idling on the drive - not a bad egg smell or anything though, it's more of an "automotive" smell.........


2002 '02' IS200 SE Auto - DVD Satnav with Voice Activation - [COLOR="Blue"]Strathcaron Blue - Parking Sensors - 5000K HIDs with Anti-Glare Bulbs - PIAA 6500K Main Beams - LED Sidelights - Mirror/Sunroof Closure - TTE Styling Kit - 18" Styling Kit Alloys with nitrogen filled Goodyear Eagle F1 Asymmetric Tyres - Bluetouch Multimedia Kit - Gromaudio AUX in - Black painted calipers with silver Lexus decals - 12 LED Dome Light - 96 LED Boot Light - Stainless Steel Sport Sill Plates - PIAA Silicone Wipers[/COLOR]

fluff
Senior Member
688
14-05-2017, 09:46 AM
#7
Thanks again for all the advice. If you start it from cold and walk round the back you can really smell it. I run it on Sainsbury's 95ron unleaded which is what I run the Micra on. MOT time is in September so I will keep my fingers crossed for then.

Jimbo.
fluff
14-05-2017, 09:46 AM #7

Thanks again for all the advice. If you start it from cold and walk round the back you can really smell it. I run it on Sainsbury's 95ron unleaded which is what I run the Micra on. MOT time is in September so I will keep my fingers crossed for then.

Jimbo.

Tango
Senior Member
314
14-05-2017, 10:10 AM
#8
Article from The Times a while ago:

Catalytic converters, which are fitted to all cars to reduce harmful emissions, are increasing levels of other toxic gases that can be hazardous to human health, according to scientists.

They say that the benefits of the devices, which clean poisonous gases such as carbon monoxide from exhaust fumes, are being offset by the production of two other potentially dangerous compounds, hydrogen sulphide and carbon disulphide.

Since 1993 EU legislation has made it compulsory for all new vehicles to be fitted with three-way catalytic converters in an attempt to reduce carbon monoxide and nitrogen oxide emissions.

While the converters have achieved this goal, they have also changed the forms in which sulphur in petrol is released into the atmosphere: hydrogen sulphide and carbon disulphide are being generated instead of sulphur dioxide.

Levels of hydrogen sulphide measured in British cities are now up to 100 times higher than they were in preindustrial times, according to research by Simon Watts and Stephen Samuel, of Oxford Brookes University, who believe that catalytic converters are partly responsible.

“The amount of sulphur coming out of individual exhausts is lower than previously. However, it is no longer coming out as sulphur dioxide but these other sulphur compounds,” Dr Watts said. “Add to this the fact that there are now so many more exhaust pipes out there, and you see the problem.”

Hydrogen sulphide, a colourless gas that is responsible for the characteristic foul odour of rotten eggs and stink bombs can shut down several critical systems in the body. Carbon disulphide is a neurotoxin and a carcinogen. It can be dangerous to human health at high doses.

“The increasing levels of hydrogen sulphide in the air potentially pose a serious health concern,” Dr Watts said. According to his research, a typical reading in the 1500s would have been 70-100 parts-per-trillion. Recent measurements in Elephant & Castle, South London, found up to 7,000 parts-per-trillion.

Professor Ken Reid, head of the immunochemistry unit at the University of Oxford, said that long-term exposure to hydrogen sulphide could raise the risk of respiratory diseases and lung cancer.

“Hydrogen sulphide can modify antibodies in the lung, which compromises immunity and increases the likelihood of infection,” he said. “It’s now well recognised that this kind of repeated insult can set up a cancerous state.”

The gas may also be responsible for increases in asthma among city-dwellers as it can disrupt the way the lungs regulate the respiratory cycle.

Dr Watts added that lean-burn engines might have been a better solution to the problem. “Our alternative in the early Nineties was lean-burn engines, which produce much less hydrogen sulphide,” he said. “But catalytic converters were the easier option for car manufacturers. I think the EU was swayed by economic considerations.”

IS 200 Sport with a few mods, Standardish IS-F. The IS250 SE-L with a few mods has gone to a new home.[SIGPIC][/SIGPIC]
Tango
14-05-2017, 10:10 AM #8

Article from The Times a while ago:

Catalytic converters, which are fitted to all cars to reduce harmful emissions, are increasing levels of other toxic gases that can be hazardous to human health, according to scientists.

They say that the benefits of the devices, which clean poisonous gases such as carbon monoxide from exhaust fumes, are being offset by the production of two other potentially dangerous compounds, hydrogen sulphide and carbon disulphide.

Since 1993 EU legislation has made it compulsory for all new vehicles to be fitted with three-way catalytic converters in an attempt to reduce carbon monoxide and nitrogen oxide emissions.

While the converters have achieved this goal, they have also changed the forms in which sulphur in petrol is released into the atmosphere: hydrogen sulphide and carbon disulphide are being generated instead of sulphur dioxide.

Levels of hydrogen sulphide measured in British cities are now up to 100 times higher than they were in preindustrial times, according to research by Simon Watts and Stephen Samuel, of Oxford Brookes University, who believe that catalytic converters are partly responsible.

“The amount of sulphur coming out of individual exhausts is lower than previously. However, it is no longer coming out as sulphur dioxide but these other sulphur compounds,” Dr Watts said. “Add to this the fact that there are now so many more exhaust pipes out there, and you see the problem.”

Hydrogen sulphide, a colourless gas that is responsible for the characteristic foul odour of rotten eggs and stink bombs can shut down several critical systems in the body. Carbon disulphide is a neurotoxin and a carcinogen. It can be dangerous to human health at high doses.

“The increasing levels of hydrogen sulphide in the air potentially pose a serious health concern,” Dr Watts said. According to his research, a typical reading in the 1500s would have been 70-100 parts-per-trillion. Recent measurements in Elephant & Castle, South London, found up to 7,000 parts-per-trillion.

Professor Ken Reid, head of the immunochemistry unit at the University of Oxford, said that long-term exposure to hydrogen sulphide could raise the risk of respiratory diseases and lung cancer.

“Hydrogen sulphide can modify antibodies in the lung, which compromises immunity and increases the likelihood of infection,” he said. “It’s now well recognised that this kind of repeated insult can set up a cancerous state.”

The gas may also be responsible for increases in asthma among city-dwellers as it can disrupt the way the lungs regulate the respiratory cycle.

Dr Watts added that lean-burn engines might have been a better solution to the problem. “Our alternative in the early Nineties was lean-burn engines, which produce much less hydrogen sulphide,” he said. “But catalytic converters were the easier option for car manufacturers. I think the EU was swayed by economic considerations.”


IS 200 Sport with a few mods, Standardish IS-F. The IS250 SE-L with a few mods has gone to a new home.[SIGPIC][/SIGPIC]

Tango
Senior Member
314
14-05-2017, 10:16 AM
#9
The rotten egg smell from your cat is hydrogen sulphide. In very small quantities i.e. parts per million you can smell it, in high concentrations you can't, and that's when it's really dangerous to health.

IS 200 Sport with a few mods, Standardish IS-F. The IS250 SE-L with a few mods has gone to a new home.[SIGPIC][/SIGPIC]
Tango
14-05-2017, 10:16 AM #9

The rotten egg smell from your cat is hydrogen sulphide. In very small quantities i.e. parts per million you can smell it, in high concentrations you can't, and that's when it's really dangerous to health.


IS 200 Sport with a few mods, Standardish IS-F. The IS250 SE-L with a few mods has gone to a new home.[SIGPIC][/SIGPIC]

fluff
Senior Member
688
14-05-2017, 10:21 AM
#10
Thanks for that Tango. I'm not looking forward to the day when they need replacing on the LS as I think I have three of them.Sad
fluff
14-05-2017, 10:21 AM #10

Thanks for that Tango. I'm not looking forward to the day when they need replacing on the LS as I think I have three of them.Sad

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