engine smoking?

[let_nova]

the engine i a LET and when i leave it to idle it will smoke now and again. roughly every 30secs or so. doesnt smoke all the time and doesnt smoke on boost? any ideas?:thumb:

[meritlover]

is that a bit like tabacco smoking?

lol

sounds like turbo seals, stem seals or rings.
probably the turbo tho. wont be smoking under boost because the pressure in the turbine and the compressor is higher than the oil pressure so there will little differential pressure causing less leaks.

[let_nova]

great so i have a funked turbo...

[meritlover]

you have a funked something anyway.

[let_nova]

if the turbo was funked and it was smoking would it not fail emmisions?

[meritlover]

depends how excessive it is. it would probably have a high HCs

[let_nova]

sorry for my dumbness what is HCs

[meritlover]

hydrocarbons
(unburnt fuel/oil)

[let_nova]

somebody mentioned to me that the breather to the turbo might be the problem?

[meritlover]

it might be. if there was a stuck PCV the oil might be forced out the breather into the inlet causing it to burn with smoke.

its hard to diagnose on the computer. its like trying to identify a squeek or a klunk by describing it.

[Sloth]

blocked return to the sump can cause this aswell, it backs up and floods the turbo

[let_nova]

blocked return to the sump can cause this aswell, it backs up and floods the turbo

how can this be cleared?:thumb:

[Pistol Pete]

Remove said pipe and clean??!!