turbo engine, phase 3 kit running phase 4 bottom end etc.
under boost, the car puts a lot of smoke out the back, which seems to be oil. the actual engine runs fine apart from this, ie drives and revs properly etc.
pulled out plug no2 and it was very black, smelled of oil. all others were fine.
ive had injectors all ultrasonically cleaned, new plugs, dizzy rotar arm etc. it doesnt appear to do it on over boost or off boost ie rev it up to 3k andit doesnt do it at all. doesnt smoke on idle either.
compression isnt down, engine has just been fully re-built.
a daft idea would be that one way valve. which way is the arrow supposed to go as i gues if it was the wrong way under boost it would suck all the oil out the rocker cover breather pipe? ie 1.5 bar would surely pull the oil through it?
also sounds like its pinking on full boost, nothing wrong with knock sensor, no fault codes or nothing.
turbo oil seals as only thing not changed in re-build
rings, but it would do it all time
valve stem oil seals, same as above surely?
anyone have any ideas as it looks terrible when you guve it some and smoke screen everyone.