主要特點: 動力強,低油耗,歐四排放技術。 采用先進技術含量的多點電控燃油噴射系統。其結構形式是:4氣缸、直列、水冷、多點電噴燃油噴射。 與同類產品相比,具有體積小、質量輕、噪聲小、排放低的優點,具有較高的動力性和較好的燃油經濟性。 由于采用先進的加工工藝,實施科學的質量管理,因此,491系列發動機具有優良,穩定的產品質量,具有較強的市場競爭力。 The Features of the Engine: Strong power, low fuel consumption, EURO IV Multi-pointECISystem, 4 cylinders in-line, water-cooled High in power, good in fuel economy; Small in size, light in weight, little in noise, low in emission 491series of engine is very competitive due to its excellent and stable quality and performance. 4.1.10檢查氣門座的磨損情況及有無損傷。必要時應修整氣門座,此時首先應檢查氣門導管的磨損情況,如已磨