Detailed description: Lubrication
The turbo shaft, which rotates at a very high speed, is precisely balanced and supported in fixed slide bearing bushings. This bearing arrangement demands a high flow of oil, which makes the shaft rotate on a cushion of oil. This oil comes from the engine lubricating system through a special oil line leading from the oil filter adapter housing. The return oil passes to the engine oil pan. The seal between the shaft and the bearing housing comprises rings (similar to piston rings) located in grooves in the shaft.