Oil Pump
| ITEM | DESCRIPTION |
|---|---|
| 1 | Bolt - chain tensioner pivot |
| 2 | Chain tensioner |
| 3 | Oil pump drive chain |
| 4 | Washer - crankshaft damper |
| 5 | Camshaft and oil pump drive gear |
| 6 | Washer - crankshaft damper |
| 7 | Oil pump |
| 8 | Bolt (4 off) |
| 9 | Oil pump gear |
| 10 | Bolt - oil pump gear |
The oil pump is an eccentric rotor type pump and is attached to the cylinder block with four bolts. The input shaft of the oil pump is driven from the front of the crankshaft by a chain drive at crankshaft speed.
The oil pump draws oil from the oil pan through a filter and pick-up which is attached to the input port of the oil pump.
The oil is pressurized and pumped from the pump body into an oil gallery in the cylinder block. The oil is then direct through the oil cooler, filtered by the replaceable cartridge filter and distributed through oil galleries in the cylinder head and cylinder block. All moving parts are lubricated by pressure or splash oil. Pressurized oil is also provided for the cam and oil pump chains and tensioners and guides.
A pressure relief valve is located within the pump body and relieves excess oil pressure back into the pump body to be recirculated through the pump.