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有一台小四轮拖拉机,高温情况下起动性能好,工作正常,而在低温情况下很难起动。检查油路、气缸压力、供油时间和正时齿轮室均正常,最后,卸下气缸盖发现燃烧室镶块方向装反。我们知道,镶块上除有主喷孔外,还有一个起动副喷孔。起动时,部分柴油直接穿过起动副喷孔至活塞顶中间温度较高的部位,使柴油机容易着火起动。镶块装反,起动副喷孔不起作用。把镶块正确安装后,故障排除。
There is a small four-wheel tractor, starting performance under high temperature conditions, work properly, but difficult to start at low temperatures. Check the oil circuit, cylinder pressure, fuel supply timing and timing gear chamber are normal, and finally, remove the cylinder head found the combustion chamber in the opposite direction. We know that in addition to the main block injection hole, there is a start deputy nozzle. Starting, part of the diesel directly through the starting deputy nozzle hole to the top of the piston top temperature of the site, so that the ignition easy to start the diesel engine. Inset with anti-block, start deputy injection hole does not work. Insert the correct installation of the block, troubleshooting.