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卡玛兹5511型牌汽车是我国1987年从苏联进口的一批汽车。很多置车单位、在短短的使用期内,发动机先后多次大修,修理时选用苏联卡玛牌5511型发动机的气缸套、活塞、活塞环,或更换发动机总成后,仅能承担土方工程施工中为期三个月的运行,(大约作功720个小时),便出现严重窜油、动力下降,致使车辆不能正常使用。东电一公司赤峰分公司大修厂针对这个问题,将国产6120型发动机气缸套外圆切削成同5511型汽车卡玛兹牌740型发动机气缸套外经相一致,便可代替740型高速柴油机装用。
Kamaz 5511-type cars are imported from the Soviet Union in 1987 a group of cars. Many sets of car units, in a short period of use, the engine has repeatedly overhaul, repair the selection of the Soviet Union Kalma 5511 engine cylinder liner, piston, piston ring, or replace the engine assembly, can only undertake earthworks Construction of a three-month operation, (about 720 hours of work), there will be serious channeling oil, power decline, resulting in the vehicle can not be used normally. To overcome this problem, Dongfang-Chifeng branch of Chifeng Branch responded to this question by replacing the cylinder of the domestic 6120 engine cylinder with that of the 5511-type Kamaz brand 740 cylinder liner and replacing the Model 740 high-speed diesel engine .