picture
Just to the left of the "oil in" you can see the nut and bolt of the V band clamp that holds the two halves of the turbo together. The oil and water feeds and drains go into the middle part of the turbo called the central housing rotatting assembly(CHRA). If you were to cut the CHRA in half you would see the four holes for the oil in/out and the coolant/water in out. If you also imagine the position of these holes on a clock face you would see the oil in at 12, oil out at 6, Coolant/water in at 3 and out at 9.
You can not see the oil drain pipe on the picture as it's underneath the turbo.
The outlet for boosted air can be consdired to be at 1.
The CHRA dimensions are the same on the 13c,15g,16T,18T and 19T so the pipework can be re-used i.e. there's no need to replace the oil and water pipes.
Familiarising yourself with the feeds, drains and relative positions of everything is useful when the time comes to take the turbo off and the replace it.
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new engine! new car!
Last edited by barkster1971; Apr 14th, 2012 at 16:46.
Reason: mistake!
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