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Quad Exhaust Unusuall Problem


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#1 liam-20

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Posted 26 August 2012 - 03:09 PM

hey guys i currantly have quad exhaust system on my car picture below
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now for some reason the tail pipe to the far right all ways seems to be covered in black carbon deposits on the out lip where as the other 3 stay fairly clean just wondering if anyone else has had this happen on them and could anyone recommed me good exhaust cleaner? cheers liam

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#2 Stoney871

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Posted 26 August 2012 - 03:16 PM

Could it be because that pipe is pushing out at a lower pressure than the other three?
Which is closest to the box?
Start the car and put your palm on each in turn so as to gauge if they are equal pressure.
Make sure the pipes are not too hot to touch first.

#3 artscot79

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Posted 26 August 2012 - 03:17 PM

sounds normal to me i used to use some petrol to clean it up though a metal polish would be better 1pipes the main the others just branch off and have lower pressure the other pipes dont do much mainly they are just for show the exhaust gas will take the most direct route thats your pipe that needs cleaned little comes out the others so they are clean

#4 liam-20

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Posted 26 August 2012 - 03:45 PM

this is how the exhaust looks off the car id have thought the most direct route would of been the first one on the left
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#5 Stoney871

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Posted 26 August 2012 - 03:48 PM

As I say it may well be that as the far right one is the farthest from the box it may not be getting enough pressure to blow all the deposits clear.

#6 artscot79

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Posted 26 August 2012 - 03:51 PM

actually no look at the weld at the its off centre to the left like the left pipes an afterthought and the right has a natural curve so the gas will head to the right pipe

#7 liam-20

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Posted 26 August 2012 - 03:58 PM

ok no worries cheers for the replys nowt i can do now so ill just keep cleaning it as it gets dirty cheers. liam

#8 artscot79

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Posted 26 August 2012 - 04:03 PM

its the best way any type of metal polish does the trick then a wipe with wd40 will clean it up also

#9 salsheikh

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Posted 26 August 2012 - 05:54 PM

this is why i got black painted exhaust trims, i had a similar issue with my last car and could be bothered cleaning the tail pipes every other week

#10 Leemaxd

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Posted 27 August 2012 - 05:27 PM

Yea on my twin exhaust, the RHS pipe is always dirtier than the LHS, it's normal.

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