汽车的使用和维修工作人员对各类发动机的发火顺序应尽可能地掌握。汽车发动机大多为四缸、六缸或八缸。四缸机和六缸机多是直列的,发火顺序很易确定,如四缸机的典型发火顺序为1—3—4—2,或1—2—4—3;六缸机的典型发火顺序为1—5—3—6—2—4,偶有1—4—2—6—3—5者。国内多数汽车发动机是四缸机和六缸机,已有丰富使用经验,极少搞错,改正也较容易。八缸机多采用V型结构,V—8发动机的发火顺序方案较多,而且各种厂牌的V—8发动机气缸排列的序号也不尽相同,维修工作者常因不知道V—8发动机的发火顺序或气缸的排列序 The use and maintenance of the motor vehicle staff on all types of engine ignition order should be as mastered. Most car engines are four-cylinder, six-cylinder or eight-cylinder. Four-cylinder and six-cylinder machines are mostly in-line, firing order is easy to determine, such as a typical four-cylinder ignition order 1-3-4-2, or 1-2-4-3; typical six-cylinder ignition The order of 1-5-3-6-2-4, occasionally 1-4-2-6-3-5 persons. Most domestic automobile engine is a four-cylinder machine and six-cylinder machine, has rich experience in using less mistakes, correction is also easier. Eight-cylinder machines use V-type structure, V-8 engine ignition sequence more programs, and a variety of brands of V-8 engine cylinder arrangement of serial numbers are not the same, maintenance workers often do not know the V8 engine The firing order or the order of the cylinders