Exhuast cleanliness

BavarianMW · 05-28-2007, 03:00 AM

So we all see that black build up on our tail pipes, but we can clean that......well about deep down inside, doesnt that stuff build up over time in our exhuast system and especially in our cats?! This doesnt cause problems?

wuufer001 · 05-31-2007, 09:51 AM

mine is a PITA to clean

redmansioner · 06-01-2007, 08:32 PM

I think the bmw air filter does the job...why don't you do some little research it would help you somehow.

Str8EJ · 06-01-2007, 10:25 PM

Quote:

Originally Posted by redmansioner

I think the bmw air filter does the job...why don't you do some little research it would help you somehow.

/shake head.

what the hell are you talking about?

carbon/soot is a by-product of the combustion process.
unless you plan on converting to hydrogen power, it's something you'll have to get over.
like dirt on tires. yes, it can be cleaned off the sidewalls, but what about deep inside the treads...where you can't get your q-tips to fit?

Str8EJ · 06-01-2007, 10:27 PM

Quote:

Originally Posted by wuufer001

mine is a PITA to clean

are you saying you have a hard time cleaning your cats/exhaust?
edit: what am i mis-reading?

e90fanatic · 06-01-2007, 11:32 PM

u dont clean ur cats man.....just wipe the tip and ur fine

wuufer001 · 06-02-2007, 03:34 AM

Quote:

Originally Posted by Str8EJ

are you saying you have a hard time cleaning your cats/exhaust?
edit: what am i mis-reading?

the tips i mean, its hard to get them shiny. the black stains are hard to get off

Potty_Pants · 06-02-2007, 08:23 AM

turbo's run rich... black crap on exhaust and sometimes on rear of car.

the Direct Injection does help to reduce the rich mixture... but it can only do so much.

It's normal and should be burned inside the cats.

dont worry.

ppp

montreal_bimmer · 06-02-2007, 09:30 AM

i would say wash it with regualar soap and water, and if it doesnt come as clean as you want, try some VIM, it should take off all the staining, then clean them up with some wheel polish, to get them all shiny, and you'll be good to go

Str8EJ · 06-02-2007, 12:36 PM

Quote:

Originally Posted by wuufer001

the tips i mean, its hard to get them shiny. the black stains are hard to get off

my bad.

i think you just have to keep vigilant. something about the carbon causes it to etch against metal, so you can't allow it to remain for too long.
also helps to keep the tips polished.

fragadellic · 06-02-2007, 03:47 PM

Quote:

Originally Posted by Str8EJ

/shake head.

what the hell are you talking about?

carbon/soot is a by-product of the combustion process.
unless you plan on converting to hydrogen power, it's something you'll have to get over.
like dirt on tires. yes, it can be cleaned off the sidewalls, but what about deep inside the treads...where you can't get your q-tips to fit?

scottp999 · 06-02-2007, 04:06 PM

Quote:

Originally Posted by Str8EJ

my bad.

i think you just have to keep vigilant. something about the carbon causes it to etch against metal, so you can't allow it to remain for too long.
also helps to keep the tips polished.

Good answer. If you clean it once a week you can just wipe it right off most of the time with a cotton towel.

Str8EJ · 06-02-2007, 05:11 PM

omg, ban-eration.

05-28-2007, 03:00 AM	#1
BavarianMW Banned 40 Rep 240 Posts Drives: 335i coupe Join Date: Apr 2007 Location: Laguna Beach, CA iTrader: (0)	Exhuast cleanliness So we all see that black build up on our tail pipes, but we can clean that......well about deep down inside, doesnt that stuff build up over time in our exhuast system and especially in our cats?! This doesnt cause problems? Last edited by BavarianMW; 05-28-2007 at 03:25 AM..
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05-31-2007, 09:51 AM	#2
wuufer001 Colonel 403 Rep 2,348 Posts Drives: 2006 E90 M/T Join Date: Mar 2006 Location: DFW, TX//Taiwan//South Africa iTrader: (5) Garage List 2006 325i [9.34]	mine is a PITA to clean __________________
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06-01-2007, 08:32 PM	#3
redmansioner New Member 0 Rep 6 Posts Drives: 2005 blue bmw m3 Join Date: Jun 2007 Location: New york iTrader: (0)	I think the bmw air filter does the job...why don't you do some little research it would help you somehow.
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06-01-2007, 11:32 PM	#6
e90fanatic Absolute0 172 Rep 5,078 Posts Drives: Has a Roundel Join Date: Apr 2005 Location: TO/HK/NJ iTrader: (6)	u dont clean ur cats man.....just wipe the tip and ur fine __________________ To procede or not to procede......
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06-02-2007, 08:23 AM	#8
Potty_Pants Colonel 70 Rep 2,189 Posts Drives: 2012 Genesis Sedan Rspec Join Date: Apr 2007 Location: Southern NJ iTrader: (0)	turbo's run rich... black crap on exhaust and sometimes on rear of car. the Direct Injection does help to reduce the rich mixture... but it can only do so much. It's normal and should be burned inside the cats. dont worry. ppp __________________ Olds Starfire > Chevy Malibu > Isuzu I-mark RS & Honda Magna 500 > Grand Am GT & YSR50 > Nissan Maxima & Ninja 750 > X-Wife > Hyundai Excel > Honda Prelude > Honda Accord > Honda Prelude & Ninja 250> Infiniti G35 > E90 335i > Hyundai Genesis Rspec, Hyunadai Sonata > Kia Sorento > Honda CRV-EX
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06-02-2007, 09:30 AM	#9
montreal_bimmer OEMconcept 180 Rep 5,593 Posts Drives: BMW Join Date: Feb 2006 Location: Canada \| USA iTrader: (6) Garage List 2006 325i [10.00]	i would say wash it with regualar soap and water, and if it doesnt come as clean as you want, try some VIM, it should take off all the staining, then clean them up with some wheel polish, to get them all shiny, and you'll be good to go
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06-02-2007, 05:11 PM	#13
Str8EJ Master of Ceremonies 1 Rep 111 Posts Drives: '07 328xi Jet Blk/Blk/6Spd Join Date: Mar 2007 Location: NoVirginia iTrader: (0)	omg, ban-eration.
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