This might sound like a complete noob question but i would really like to know if there is any reason for it. Normally i see the oil feed line on the top side of the turbo and the return on the bottom draining to the pan. Drawing from my experience from outboard boat motors i know that when servicing the lower end fluid is pumped in from the bottom to avoid leaving air pockets. i was wondering if the same thing could be said for a turbo, could the turbo be clocked so that the feed is on the bottom and the return on the top? a 90 degree fitting or two could be used to route the return back to the pan.

it just seems to me that it would keep allot more oil at the bearings and allow it to OVERFLOW to the return line rather then possibly forming an air pocket as it drains away from the bearings.



a quick diy i found to illustrate changing the lower end oil

http://onlineoutboards.com/m_tech_info_oil_change.html

 

why no love for my question?

 

The seals in the turbo dont work well when submerged in oil... alot would get by them and the car would burn oil like a ****.

Also, dont know if this is true or not, just my thinking, but the turbo is so hot the oil needs to move through it rather quickly to prevent it from coking. Someone who knows more can either agree or disagree with me.