Following the bad news of my turbo exploding yesterday i started draining the oil and when i removed the filter i found a big hole/crack in the housing at the bottom but the weird thing is it doesnt feel jagged its all smoothed off like its meant to be there but its mis shaping and odd. I'll attach the photo what do you guys think is it meant to be there? Cheers

Edited 20 April, 201511 yr by Jay21Nov

I cannot get the images to open.

 

DB

Try this

I'd say certainly not meant to be there.  A void in the casting that should have caused that casting to be rejected.  If it doesn't go right through to the outside, it won't really be doing any harm though.

I'd say certainly not meant to be there.  A void in the casting that should have caused that casting to be rejected.  If it doesn't go right through to the outside, it won't really be doing any harm though.

It feels ok there is oil in the hole there it all seems normal just unusual is it not anyway i cant find any pics online to check if theres meant to be a hole there or not