Wet Exhaust

Post by **iandromiskin** » Wed Nov 25, 2009 8:04 pm

I just noticed today that the exhaust on one of my cars was spluttering slightly when idling. I had a look and it appears that a bit of water from the exhaust had formed at the end of the outlet pipe and the exhaust was making a sort of spitting noise.

Is this normal or a sign of a problem somewhere ?

Post by **alzax3** » Wed Nov 25, 2009 8:40 pm

How damp was the weather? If you (alright the car!) is not using any water, then it can only be excess H20 in the combustion process, and many places in the UK seem to be experiencing close to 100% humidity at the moment....

Post by **Peetee** » Wed Nov 25, 2009 8:52 pm

It's probably condensation forming in the warm pipe. It's perfectly normal and not cause for concern but short journeys will not evaporate it completely and you may find the exhaust system doesn't last too long.

Post by **iandromiskin** » Wed Nov 25, 2009 9:24 pm

Yeah. I had only just moved the two cars out of the shed for a bit of spring cleaning so I had both of them running while I was working just to tick them over. It was a bit showery at the time too so that would probably explain it. Thanks.

Post by **billlobban** » Wed Nov 25, 2009 10:16 pm

Simply part of the combustion process. H20 Being a byproduct of hydrocarbon combustion. No worries!

Post by **kennatt** » Thu Nov 26, 2009 8:07 am

find the lowest point on the silencer and drill a small hole about 1mm to alow the condensation to run out while the car is parked overnight,stops rusting on the inside of the system. I use a nail and drive it through the silencer at its lowest point close to the welded end,dos'nt effect the system but does stop the condensation from pooling,Not a problem if used everyday it gets blown out,but if used then stored for long periods can rot the box in a very short time.