1.发动机为什么无力农用三轮车满负荷爬坡时,发动机表现无力或突然自动熄火。此时摇转曲轴,发动机没有压缩力,其主要问题是积炭块将气门垫起。应摇转曲轴,击摇臂,再用手锤适度击打排气门摇臂上端,几圈过后即可排除故障。 2.活塞环为什么折断小四轮拖拉机烧瓦后更换了新的合格瓦片,装复后的发动机出现冒黑烟、功率不足的现状,检查时发现活塞 1. Why the engine powerless agricultural tricycle full load when climbing, the engine weakness or sudden automatic flameout. Swing crankshaft at this time, the engine does not compress the force, the main problem is that the carbon block will pad the valve. Shake the crankshaft should be rocking, rocker arm, hand hammer and then moderate hit the exhaust valve rocker arm, after a few laps to troubleshoot. 2. Why the piston ring broken After a small four-wheel tractor to replace the new tile after qualified tile, installed after the engine appeared black smoke, the status quo power shortage, inspection found that the piston