我队一辆解放CA15型载货汽车,出现了一特殊故障。故障现象是,在空车行驶一切正常,重载平路和下坡也没有问题,只是重载爬坡时就出现“嗒嗒………嗒”轻微的酷似点火过早的异响声,且发动机动力逐渐下降。 我们在排除异响故障时,首先将点火时间推迟,未见好转。接着拆检正时齿轮也正常。我们还清洗化油器,调整气门间隙,检查了电路,均未排除异响这一故障。最后,当我们检查分电器 A liberation of CA15 truck of our team, there was a special fault. Fault phenomenon is empty car driving everything is normal, heavy load flat road and downhill there is no problem, but when there is a heavy load rampant, “......... Dada” slightly resembles a premature ignition noise, and Engine power gradually decreased. We ruled out abnormal noise, the first ignition delay, did not improve. Then disassemble the timing gear is also normal. We also clean the carburetor, adjust the valve clearance, check the circuit, did not rule out the abnormal sound of this failure. Finally, when we check the distributor