White/Blue Smoke On Overrun

[Chesh]

Getting alot of smoke on overrun white/blue, i have swapped the turbo 3 times no imporvement,changed the pvc valve still nothing but if i block pvc i get smoke on idle and not on overrun any ideas

[turbo Grant]

Is the breather between cylinder 1&2 ok? If that was blocked you would get lots of smoke on over run

[H_D]

is there any oil coming out of the breather?

Does is smoke on startup?

Have you done a compression/leak down test?

If there is oil coming out of the breather then your piston rings/ringlands are fucked but a compression test should rule this out if the rusults are ok.

If it usually smokes on startup, over run or when you move off from a standstill I would say its your valve stem seals or valve guides.

[Chesh]

is there any oil coming out of the breather?

Does is smoke on startup?

Have you done a compression/leak down test?

If there is oil coming out of the breather then your piston rings/ringlands are fucked but a compression test should rule this out if the rusults are ok.

If it usually smokes on startup, over run or when you move off from a standstill I would say its your valve stem seals or valve guides.

Im getting oil from the breather not alot

Compression test come back left to right 11 10 10 11 Bar

No smoke on start up only on overrun

I have oil sitting round the pvc valve tho

[turbo Grant]

Are you still running the pcv valve to the manifold? If so is fuck it off gut it and vent it to atmosphere

[Chesh]

When i block the pvc valve up on manifold side it smokes on idle