Need a pic of a early 2.5TD oil return pipe OR help with a thread pitch


Technical Excellence Contributor
making a return hose for a custom turbo.

At first i was looking for the block side thread of ERR335, the oil return adapter. If you happen to know this would make my life easier.

Seen here:

then i saw that very early 2.5TD simply used a threaded elbow and check nut. This could also work but, ive never seen one on an engine

seen here:

anyone have the thread pitch and size or a good snap of the early part?


Technical Excellence Contributor
Totally helps! I suspected it was m22x1.5 on the block side .

soon as I get the turbo in the mail I'll shoot you an update on what it's all about! Should be here next week.

Really appreciate it .