Turbo oil feed

[ChEsTeR]

Hi i have recentlu changed turbo(regenerated one) and it spits oil both intake and exhaust sides.

i used an original T2 oil feed line. Is it to big for a T28/T25. Those turbos had 1mm( ruff, frills, gorget)dont know wich word is right, on the oil feed line for example CA18DET had one. Can it be a proble???? I have to add that the oil return line is not blocked.