求翻译：7.不准汽车油路系统有滴漏。如果底盘部分的油路有滴漏，而且正遇上点火迟点、混合气稀点，由于燃烧缓慢会使排气管冒火，车身的温度升高，超过汽油蒸气的燃点十几倍(汽油蒸气的燃点是28℃)。将漏出的油点燃，极易发生火患，造成车体的报废。化油器部分若滴漏在气缸盖上，火花塞高压火花漏电也可能引起火灾。是什么意思？

7. no automobile oil system leakage. If the chassis parts oil drips, ignition and is encountered later, mixed gas thin point, because the slow combustion exhaust pipe sparkling, body temperature, over petrol vapour igniting a dozen times (ignite petrol vapour is 28 ° c). The leaking oil ignited very prone to fires, causing body scrap. Carburetor parts if it drips on the cylinder head, high voltage spark spark plug leakage may also cause fires.