I-Head Rotor 1 468 376 017 yenziwe nge-alloy enamandla amakhulu futhi i-abrasion enhle kakhulu futhi ingamelana nokugqwala, engakwazi ukulawula ngokunembile ukumuncwa nokukhishwa kukaphethiloli, ngaleyo ndlela inikeze inani elifanele lokuhlinzekwa kukaphethiloli okuzinzile kokusha kwenjini ye-diesel.