1. The cylinder head nut is not tightened or the cylinder head gasket is damaged.
When turning the crankshaft, if there is a leakage sound at the joint surface between the cylinder head and the machine body, the cylinder head nut may not be tightened, or the cylinder head gasket may be damaged. If it is the former, it should be tightened as required. If the latter is the case, when the cylinder pad is not badly damaged, the asbestos thread can be used to make up for the damage, and in case of serious damage, replace the new pad.
2, intake, exhaust valve leak.
There are two reasons for this type of air leakage: First, the valve clearance is too small to close the valve and it is necessary to readjust the valve clearance. The other is that there may be spots on the valve sealing cone surface, such as rust, carbon deposits and other debris, but also make the valve closed lax. The crankshaft can be cranked during the inspection. If there is a “buzzing, squeaking†sound in the air cleaner and the exhaust pipe, the inlet and exhaust valves will leak. The valve needs to be ground.
3, piston ring excessive wear.
When turning the crankshaft, the inside of the body (such as low oil shell) leaks sound, most of them are on the piston ring. Some clean oil can be added into the cylinder. If the compression force is increased after the addition, the piston ring should be replaced.
4. The opening of the piston ring is moved to a straight line (commonly known as the counterpart), or the piston ring is stuck in the ring groove due to carbon deposition, and the cylinder cannot be popped up.
The phenomenon is that when the crankshaft is turned, there is a sound of air leakage in the crankcase. The piston ring should be removed to remove coke. If the ring moves to a straight line, the positions of the openings should be evenly distributed, but the direction of the piston pin must be avoided.
5. Loose injector fixing bolts.
The cylinder head is leaking at the injector and it should be tightened.
In addition, bearing bushes or copper sleeves are bitten to make the crankshaft unable to rotate, and piston installation or air filter plugging, etc. also make the diesel engine unable to start, etc., which is also the cause of difficulty in starting the tractor.
Metal Stamping is a process in which a metal stamping die or a series of metal stamping dies are used to form a metal sheet into a three-dimensional shape.
Metal stamping products are used in various industries, such as automobiles and household appliances.
Automobile stamping is an important part of metal stamping industry.
Metal stamping is a highly efficient way of forming sheet metal.
Metal stamping die installed in the press, press each stroke forming a workpiece.
The production of metal stamping is completed by metal stamping workers.
Metal stamping dies are produced by machine tools or die factories.
Some machine tool and die factories also produce stampings.
Metal Stamping
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