CONSTRUCTION
No. 1 oil nozzle sub-assemblies are provided in the center of the right and left banks of the cylinder block for cooling and lubricating the pistons.
The No. 1 oil nozzle sub-assemblies contain a check valve to prevent oil from being fed when the oil pressure is low. This prevents the overall oil pressure in the engine from dropping.
| *1 | No. 1 Oil Nozzle Sub-assembly | *2 | Check Ball |
| *3 | Oil | - | - |
| *a | No. 1 Oil Nozzle Sub-assembly Cross Section | - | - |