问：2011年福特·嘉年华（Ford Fiesta）在2011年破裂，有人告诉我，曲轴上起床，他们建议更换发动机。

曲轴完全无法访问，因为它完全包含在固体金属（铸铁，钢或铝）发动机块中。因此，没有外部驱动皮带可以干扰甚至触摸曲轴。A harmonic balancer is bolted to the snout of the crankshaft and if the drive belt broke, I suppose it’s possible that bits of broken belt material could get stuck between the balancer and the front cover of the engine but the problem that poses is trivial as you can just simply remove the broken bits of belt material. A new engine is only necessary if there is something seriously wrong with your old one and in your case you seem to be indicating the car runs pretty good. Overheating is hard on engines, and can damage them, but if there were damage, such is detectable and can be also be tested for. If you car overheated, you do want to be wary about possible heat related damage to the发动机冷却恒温器有时传感器可能会被高温损坏，例如曲轴位置传感器。最重要的是，您可能没事车辆检查 - 发动机焦点区域。请让我们知道您是否有其他问题或问题，因为我们一直在这里为您提供帮助。