1. After installing the engine on the vehicle, check the engine oil and coolant levels again (see «Weekly checks»). Check one last time that you have installed and connected everything and that there are no tools or rags left in the engine compartment.
2. Turn on the ignition and immediately start cranking the engine with the starter (without using glow plugs) until the low oil pressure warning light goes out.
3. Fill the fuel system as described in chapter 4B or 4B (whichever is applicable), and then start the engine.
Please be aware that this may take a little longer than usual. This is due to the need to return to the normal mode of the fuel system.
4. With the engine running at idle, check for fuel, coolant, and oil leaks. Don't worry if some unusual odors and smoke come from the heated elements that had oil on them.
5. Assuming all is well, let the engine idle until you feel hot coolant circulating through the upper radiator hose, then turn off the engine.
6. Allow the engine to cool down and recheck the oil and coolant levels as described in «weekly checks». Adjust the level if necessary.
7. If the cylinder head bolts have been tightened as described, there is no need to re-tighten them after the first start of the engine after assembly.
8. If new pistons, rings or main bearings have been installed, the engine must be treated as new. It must be run-in for the first 800 km. Do not allow the engine to run at wide open throttle or low RPM in any gear. At the end of this period, it is recommended to change the oil and filter.