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故障现象:一辆正常行驶的CA1091型载货车,冷机时发动机容易起动,工作正常;而当发动机经过大负荷运转后,却出现怠速不稳定甚至熄火现象,并且热车起动困难。 故障检查:检查发现,化油器热怠速补偿装置不能正常工作。 故障排除:更换损坏的热怠速补偿装置,并作适当调整后,故障现象即消失。 故障分析:一般情况下,发动机低温起动需要较浓的混合气,而热机时起动则需较稀的混合气。因
Fault phenomenon: a normal driving CA1091 truck, cold engine easy to start, work properly; and when the engine after heavy load operation, but there idle instability or even turn off phenomenon, and the hot car start difficult. Troubleshooting: Check found carburetor hot idle speed compensation device does not work. Troubleshooting: replace the damaged hot idle speed compensation device, and make appropriate adjustments, the phenomenon of the fault disappears. Failure Analysis: Under normal circumstances, the engine needs a thick mixture of low-temperature start-up, but when the heat engine needs more dilute mixture. because