1 With the engine refitted in the car, double-check the engine oil and coolant levels. Make a final check that everything has been reconnected, and that there are no toots or rags left in the engine compartment.
2 Start the engine, noting that this may take a little longer than usual, due to the fuel system components of Fiat Punto having been disturbed. Make sure that the oil pressure warning light goes out then allow the engine to idle.
3 While the engine is idling, check for fuel, water and oil leaks. Don't be alarmed if there are some odd smells and smoke from parts getting hot and burning off oil deposits.
4 Assuming all Is well, keep the engine idling until hot water is felt circulating through the top hose, then switch off the engine.
5 After a few minutes, recheck the oil and coolant levels as described in Weekly checks, and top-up as necessary.
6 Note that there is no need to retighten the cylinder head bolts once the engine has first run after reassembly.
7 If new pistons, rings or crankshaft bearings have been fitted, the engine must be treated as new, and run-in for the first 500 mites (800 km). Do not operate the engine of Fiat Punto at full-throttle, or allow it to labour at low engine speeds in any gear. It is recommended that the oil and filter be changed at the end of this period.