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(1)原因分析发动机点火不良及运转不平稳一般有以下原因造成:燃油压力低;燃油系统内进入空气;燃油输送泵和汽缸盖之间燃油管有泄漏或破损;气门间隙不正确:喷油正时不对;气门推杆弯曲或损坏;喷油器操纵杆系卡住;燃油标号与季节不符;调速器功能不正常;喷油器有故障。(2)排除方法首先,在确保燃油箱内燃油充足的情况下,检查燃油压力,若燃油输送泵的出口压力(在满载转速下)不小于
(1) Analysis of the causes of poor engine ignition and running instability are generally caused by the following reasons: low fuel pressure; fuel into the air system; fuel pump and cylinder head between the fuel pipe leak or damage; valve clearance is not correct: fuel injection Timing wrong; valve push rod bent or damaged; injector lever stuck; fuel label and the season does not match; governor function is not normal; fuel injector is faulty. (2) Remedy First, check the fuel pressure while ensuring enough fuel in the fuel tank. If the outlet pressure of the fuel pump (at full load speed) is not less than