White smoke from Exhaust

[GiovixFal]

Hello there,

Getting white smoke with burnt oil smell from the exhaust.
This only happens when the engine is warm and after idling for at least one minute.

- First start after night, no smoke at all.
- No smoke from the oil filler.
- Oil moisture in the intake system.

I installed 6 months ago a new turbo (regenerated) trying to solve this, at first the smoke was less, but by the time, it's the same again.
Bad turbo?

 

[botfch]

Might want to post what car your talking about.

Did you replace the turbo oil feed pipes & oil when you changed the turbo?

 

[GiovixFal]

Might want to post what car your talking about.

Did you replace the turbo oil feed pipes & oil when you changed the turbo?

Hey @botfch, thanks for your reply.

I've had this little problem since before I started changing parts.

It's about my Wind, 1.2 TCe. Before I did all the tweaks (Stage 1, Decat, Intercooler and Intake system) the original turbo started to fail me. (Oily intake).

So I took the opportunity to change the turbo (regenerated) and install a decat downpipe + Stage 1.

Car is running fine, it's been now over 35,000 km. Only problem is when I'm idling for at least 1 minute, white oil smelly smoke comes out.

Didn't change the oil feed pipes, but the oil with filter. I ordered now a new turbo, but before I install, wanted to ask here some hints.

P.S: No smoke when starting the engine after night and also no smoke from the oil fill cap. (On warm engine).

 

[MLB]

Did this start before or after you went full send with the pop pop bang bangs?

 

[GiovixFal]

I've had this little problem since before I started changing parts.

As I said, it's before...
but the pop pop bang bangs stuff it's not on this car. 😅

 

[dervman63]

Oily intake is not a sign of turbo problems, thats down to the breather system (PCV) An expensive misdiagnosis good sir.

 

[GiovixFal]

Renault master found the problem, valve stem seals!
Will be fixed soon.
After that, I will clean the intake from the oil. (Intercooler, etc...)

Thanks for the help, I will post if and when the problem is solved!

 

[TheBandit]

Cant possibly think why

*Edit: sorry wrong car, but you should put pops and bangs on a Wind that would be mental

 

[GiovixFal]

My Wind has 252.000 km on the clock, maybe now you can think why...

Wind is not my test car, the pops and bangs stuff was just to see if we could get flames out of a clio III.
After we did, never used omex anymore.

 

[Cub.]

 

[GiovixFal]

[PROBLEM SOLVED]


Forgot to post here; it was the valve stem seals!

Did the job by myself and fixed the smoke problem.

Just came back from holidays with my Wind.
3400 km trip in total and no smoke at all.

Regards.

 

[GiovixFal]

P.S:
I also clean the intake system from the oil and since new seals no oil there anymore.

 

[Rxmx_25]

Hello, I own a 2013 MK4 Clio 1.2 TCe EDC, same engine, similar issues. Though I haven’t done any power enhancing mods, it did recently have the timing chain replaced. Since then, a couple oil leaks and smoke even when warm; main issue by far is the smell of oil in the cabin. I do believe there is an issue with the breathers, possibly even a faulty PCV valve. Are there any other issues or concerns you noticed with yours?

 

[GiovixFal]

Hello,
are you sure you're not talking about the timing belt? I am not sure that the 1.2 TCe can have a timing chain...

Anyway, I never had smoke smell in the cabin, my only issue was a little smoke cloud from the exhaust when revving the engine after 1 min. stop. (Smoke was grey and oil smelly).

If you're getting oily smell inside the cabin, then probably you have an oil leak somewhere on the engine and when it burns, the smell gets inside the cabin.
Can you give more information? (Smoke from the exhaust? What color? When the engine is warm or even with cold engine).

As long as I understood, the car doesn't have a PCV valve, it's just a rebreather system that after many miles can get clogged. For me, cleaning the hole breather system didn't fix the issue.

If you still believe it could be the breather, you can simply unplug it and try to rev the engine and see if something changes.
This video here shows how the breather works for our engines:

 

[Rxmx_25]

This is a 2013 MK4 Clio with the H5F turbo engine.

The car smokes out of the exhaust on start up and keeps smoking for a while (but the smoke reduces, just not completely).

I tried checking the colour and the smell but as I was the only one driving I couldn’t get a conclusive answer as to whether it was coolant smoke or engine oil being burned or just condensation.

The engine bay definitely has a faint smell of oil after the drive.

On start up, the engine blips to over 2000rpms, and hovers at 1000, until it warms up at returns to 800 rpm when it’s warm. It’s not a choppy idle, I just think it’s revving higher than usual.

So far as I know, there isn’t any milky residue or mayonnaise under the oil cap.

I do believe there is internal pressure causing these oil leaks.

 

[GiovixFal]

Get your engine cleaned from oil and check future oil leaks, probably the rocker cover seal is worn and oil is coming out from there.
With all the "Symptoms" you gave me, I believe this is normal behavior.
With the cold temperature outside, the smoke you see is probably condensation.
Can't help you more than that... I am sorry!

 

[Rxmx_25]

Get your engine cleaned from oil and check future oil leaks, probably the rocker cover seal is worn and oil is coming out from there.
With all the "Symptoms" you gave me, I believe this is normal behavior.
With the cold temperature outside, the smoke you see is probably condensation.
Can't help you more than that... I am sorry!

Thanks anyway, Know of any places who can clean residual oil? Near east London area, Dagenham?

 

[GiovixFal]

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There are many places, here is one I found I can recommend a little. They didn't clean my engine bay, but the interior cleaning service was good in my opinion.

You need engine bay cleaning, costs £40.00

Best regards.