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Author Leak in exhaust system system cause backfires?
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
User status: Offline
24th Dec 04 at 13:26   View User's Profile U2U Member Reply With Quote
Just wondered if a leak in a de-cat section of exhaust could cause a mahoosive pop when giving it some & shifting through the gears? Ive got a shitty bodge job of an exhaust system on my valver and noticed its leaking about a week ago since then well appart from sounding shatt its developed a loooverly rally slag pop pop bang

[Edited on 24-12-2004 by TOMAS]
deanmcreynolds26
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Registered: 15th Sep 03
Location: E46 //M3
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24th Dec 04 at 13:36   View User's Profile U2U Member Reply With Quote
yesh it does this...
Nismo
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Registered: 12th Sep 02
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24th Dec 04 at 14:36   View User's Profile U2U Member Reply With Quote
mine does that but i have no leaks
TOMAS
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Registered: 7th Aug 02
Location: Nottinghamshire
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24th Dec 04 at 14:58   View User's Profile U2U Member Reply With Quote
^

Rich on the overrun eh? Well I thaught it was pretty funny, shat myself racing against someone the first time it happened as it never used to - wasnt expecting it, thaught thats the timing belt gone for a split sec...

Pulling the shit thing off after crimbo and going custom. Want it quiet because I know that when I get a loud exhaust I tent to drive around like a spanner all the time thinking im Mr Solberg or summat in my shat 5door brick... Quiet system and I tend to drive more sensibly
drunkenfool
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Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
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24th Dec 04 at 18:22   View User's Profile U2U Member Reply With Quote
tomas, thats exactly the same problem i have with mine, and after reaading your similar performance problems then there might be a common link! Ive head a couple of HUGE bangs that made some old lady jump when i went under a bridge
infinitycorsa
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Registered: 3rd Apr 02
Location: Stourport-on-Severn, Hereford and Worcester
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24th Dec 04 at 18:27   View User's Profile U2U Member Reply With Quote
behave matt.... stop thinkin bout these poor old ladies as usual! there inocent till you sliped them 1
vibrio
Banned
Registered: 28th Feb 01
Location: POAH
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24th Dec 04 at 18:52   View User's Profile U2U Member Reply With Quote
not a back fire but a bubble in the flow
ed
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Registered: 10th Sep 03
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24th Dec 04 at 18:54   View User's Profile U2U Member Reply With Quote
A back fire is a sign of overfueling. However, as your car has a de-cat pipe fitted then the likely hood of it backfiring would be increased because the catalytic convertor would get rid of most of the un-burnt fuel. Don't think a hole in the system makes it backfire though...

 
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