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在拖拉机、柴油机维修、保养中,除去一套正规的程序外,人们还创造了一些行之有效的方法,这无疑对维修有一定好处。但是也有一些流行的方法,以讹传讹、弊多利少,甚至根本是谬误的。举例如下。一、扩大引燃孔,解决堵塞问题。S195X195型等柴油机,气缸盖涡流室镶块上有个引燃孔。引燃孔堵塞后便很难起动。有的机手为了防止堵塞,便用铁丝把孔捅大。这样虽然不易堵塞了,但带来的却是冒黑烟,功率下降。原因是在压缩行程,空气进入涡流室时,不再只通过镶块上的主喷孔,扩大后的引燃孔也大量进空气。这就不能使涡流室
In the tractor, diesel engine repair, maintenance, in addition to a set of formal procedures, people also created some effective methods, which undoubtedly have some benefits for maintenance. However, there are also some popular ways of using incorrect information to correct mistakes and to make more profits and less profits. It is even totally fallacious. Here’s an example. First, to expand the ignition hole to solve the clogging problem. S195X195 and other diesel engines, cylinder head vortex chamber inserts a pilot hole. Pilot hole is blocked after it is difficult to start. Some machines in order to prevent blockage, they use the wire to stab the hole. Although this is not easy to block, but it is brought black smoke, power decline. The reason is that during the compression stroke, when the air enters the vortex chamber, it no longer passes only the main jet hole on the insert, and the enlarged pilot hole also enters the air in large quantities. This can not make the vortex chamber