Turbocharger Lubrication
| ITEM | DESCRIPTION |
|---|---|
| 1 | Banjo bolt |
| 2 | Washers |
| 3 | Oil supply pipe |
| 4 | Oil return pipe |
| 5 | Bolt |
| 6 | O ring seal |
The rapid acceleration and deceleration response demands of the turbocharger rely greatly on a steady flow of clean oil. The oil supplied from the lubrication system of the engine provides lubrication to the turbocharger's spindle and bearings, while also acting as a coolant for the turbocharger center housing. A small oil filter is located in the cylinder block to prevent particulate matter entering the turbocharger via the engine oil supply pipe.
To maintain the life expectancy of the turbocharger, it is essential that the oil has a free-flow through the turbocharger and unrestricted return to the oil pan of the engine. It is therefore imperative that the engine oil is replenished at regular service intervals with the recommended quality and quantity of oil.
The oil supply pipe transmits the engine oil from the oil filter housing to the turbocharger. The oil supply pipe is fixed by a Banjo bolt and sealed by two washers on each ends.
The oil return pipe transmits the engine oil from the turbocharger back to the oil pan. The lower end of the oil return pipe is pushed into the cylinder block and sealed by an O ring seal. The upper end of the oil return pipe is retained by a bolt and sealed by an O ring seal.