Oil Pump
| ITEM | DESCRIPTION |
|---|---|
| 1 | Pressurized engine oil outlet to cylinder block |
| 2 | Pressure outlet |
| 3 | Oil pump intake |
| 4 | Electric oil pump |
| 5 | Electric connector |
| 6 | Oil pump drive sprocket |
| 7 | Oil pick-up pipe |
The oil pump is attached to the underside of the windage tray with 3 bolts. The input shaft of the oil pump is driven from the front of the crankshaft, by a chain, at 0.87 engine speed.
The oil pump draws engine oil from the oil pan through a centrally mounted pick-up pipe. The engine oil is pressurized and pumped through an output tube to the cylinder block. After passing through an anti-drain valve and a plate type oil cooler, the oil is filtered by a replaceable cartridge installed on the front of the right (bank 1) cylinder head.
The output from the oil filter is distributed through oil galleries in the cylinder heads and the cylinder block. All moving parts are lubricated by pressure or splash oil. Pressurized engine oil is supplied to the Variable Camshaft Timing (VCT) system, the piston cooling jets and the timing chain lubrication jets.
The oil returns to the oil pan under gravity. Large drain holes through the cylinder heads and cylinder block allows the return of the engine oil to the oil pan. System replenishment is through the oil filler cap on the left cylinder head cover.
An oil evacuation tube is installed to allow engine oil to be drawn from the oil pan. The upper end of the oil evacuation tube is located under the oil filler cap.
An oil drain plug is installed in the right side of the oil pan.