Steamy exhaust - possible fix??

[GBH14]

Right, I have got a steamy exhaust even once the engine has warmed up, I know a possible cause of this is headgasket, but I am not losing any water and have marked the level which is not moving, so I am ruling this out. I have read on here that the 182 have a problem with retaining up to a pint of water in the back box?! Is this true? Because if so then as the exhaust heats it would cause it to steam... As expected. This should surely dry out after a long run though right?? But how quick will it occur again??
If I was to replace with an after Market exhaust would this stop the problem? As it would have a different design of back box and not hold the water??

Any thoughts would be appreciated

Cheers

 

[M@tt_182]

Mines also like this sometimes. The cold weather doesn't help it and it could have a small amount of water in the backbox. When i searched for other threads on this it seems like its a common problem and highly unlikely it's HG failure.

Fitting a new backbox will rule out the water issue but I'm sure it'll still steam a fair bit in cold weather.

 

[Y7 ADW]

All exhausts steam when its cold...

 

[quik99]

Mine does this too, i have the standard system on (its a bit rusted in places) and it steams when hot! Im not losing any water either so i just put it down to the exhaust getting a bit worse for wear. A new uprated one will soon cure that

But all exhausts steam when cold, just not so much when warm!

 

[GBH14]

All exhausts steam when its cold...

Yes.. Yes they do, but mine steams even when warm, as I said. It's not normal for it to steam after an hour run...
Can anyone who had this problem with a standard exhaust an now how have an aftermarket one, confirm it stops the steam???

 

[Budgie]

Why bother?

Live with it, imo.

 

[daz182]

I dont think its anything to worry about to be honest my previous 182 done this when it was brand new and my current one also does it, once engine is warmed thru give it a good boot and keep your eye on the rear view mirror for the steam coming out the exhaust at around 5/7k rpm

 

[quik99]

I dont think its anything to worry about to be honest my previous 182 done this when it was brand new and my current one also does it, once engine is warmed thru give it a good boot and keep your eye on the rear view mirror for the steam coming out the exhaust at around 5/7k rpm

this ^

 

[mike1pow]

take it for a long run, for over an hour to get the engine/exhaust hot and boil all of the water away

 

[barker22]

all that will happen is you will get rid of it eventually and then it will rain again. then it will start again. an aftermarket will propably enhance the problem as the tailpipes will likely be larger thus catch more water.

 

[LowLife.]

You should see my decat zorst. Facking steamy.

 

[TheEvilGiraffe]

H2O is a by-product of petrol and air being ignited.

Unless you sit at 7000 RPM for about half an hour, you wont get temps up high enough at the end of the exhaust to clear the water completely that's in there already.

If, as you say, you're not losing any water, then worry not. Wait for the exhaust to rot and get a decent system on there. OEM ones are made of cheese and spit anyway.

 

[DrR]

1 pint of water will make roughly 1700 pints of steam, thats a lot.

 

[Arctic_182]

mine does this too so annoying when you put your foot down & there is a trail like a train behind you

 

[Dunn]

H2O is a by-product of petrol and air being ignited.

Unless you sit at 7000 RPM for about half an hour, you wont get temps up high enough at the end of the exhaust to clear the water completely that's in there already.

If, as you say, you're not losing any water, then worry not. Wait for the exhaust to rot and get a decent system on there. OEM ones are made of cheese and spit anyway.

Actually the cat converts the hydrocarbons (unburnt fuel) into cardon dioxide and water which is where the main water build up comes from

Currently doing an emmisions assignment FTL

 

[fatboymal]

Mine did this from new. The dealer first told my wife that "all cars steam when it's cold", so I took it back on a warm day and made it steam all the way up and down a short dual, the back of the car was soaking. They then found a few pints of water in one of the back boxes. In the end I had the rear boxes drained twice under warranty. I've no idea how they drained it...

After warranty ended I just lived with it, but then it's no wonder the exhaust rotted so much.

 

[GBH14]

Mine did this from new. The dealer first told my wife that "all cars steam when it's cold", so I took it back on a warm day and made it steam all the way up and down a short dual, the back of the car was soaking. They then found a few pints of water in one of the back boxes. In the end I had the rear boxes drained twice under warranty. I've no idea how they drained it...

After warranty ended I just lived with it, but then it's no wonder the exhaust rotted so much.

So the pints of water story is true then. When you ran out of warranty and the exhaust rotted did you replace it with a standard one? And is this still happening now then? I know it isnt going to do any harm if that is where the steam is comming from (except rust the exhaust) and I could just live with it but I just want to know of possible fixes without constant draining as it looks pretty shite tbh!! Where does the build up of water come from? Is it just the trapped condensation collecting or as a previous post said, rain water going in the exhaust exit?? If it is the later, which sounds strange, then I have noticed the milltek system (and maybe others) don't pertrude as much out the rear of the bumper, and so shielding it more from rain.

 

[fatboymal]

So the pints of water story is true then. When you ran out of warranty and the exhaust rotted did you replace it with a standard one? And is this still happening now then? I know it isnt going to do any harm if that is where the steam is comming from (except rust the exhaust) and I could just live with it but I just want to know of possible fixes without constant draining as it looks pretty shite tbh!! Where does the build up of water come from? Is it just the trapped condensation collecting or as a previous post said, rain water going in the exhaust exit?? If it is the later, which sounds strange, then I have noticed the milltek system (and maybe others) don't pertrude as much out the rear of the bumper, and so shielding it more from rain.

I didn't think it was rain water as my car was always left parked uphill on my drive, and did very few miles in the rain. I've replaced it with a Pro Speed stainless but it has only been on the car a couple of weeks so a bit early to tell.

 

[Silent_Scone]

if it ain't broke why fix it

 

[DrR]

Does this mean decatted cars don't have this problem?

 

[Silent_Scone]

I would of thought most of it would sit in the back box surely

 

[GBH14]

I didn't think it was rain water as my car was always left parked uphill on my drive, and did very few miles in the rain. I've replaced it with a Pro Speed stainless but it has only been on the car a couple of weeks so a bit early to tell.

Ok, could you keep me updated and let me know how it gets on? I know it's not doing any harm but its just strange that it is possible for that amount of water to collect in the exhaust

 

[Christopher]

Take it out for a two-hour battering.

It won't do it then.

 

[Darren S]

Iirc, there was a Trophy owner on here who said when his OEM backbox failed, there was loads of water in it.

OEM zorsts suck length anyway. Overweight, puny sounding, don't fit flush, have small exit pipes and are made of nothing more structurally robust than cat sick.

D.