A bogey to replace Baotou beiben parts cylinder pad does not remove the residual cylinder pad. At present, some of the cylinder liner is graphite products, such as the cylinder gasket adhesion, good sealing, can only be used 1 times. When remove the graphite cylinder pad, adhesion in the body and head plane of the remnants of the old cylinder pad must be clean. Because the adhesive contact in the body and head on the surface of the debris is uneven, mounted on the cylinder head, cylinder pad is not real, can not withstand the diesel engine with high temperature and high pressure gas impact, easy again washed gasket.
Two avoid installing piston pin not heating piston. When the aluminum piston is heated, the expansion is larger, and the piston pin must have a certain degree of tightness in the piston pin hole at normal temperature. Installation should be in advance of the piston in the oil or water heated to about 90 degrees Celsius, and then take out the piston, while the heat can be used with the hands of the piston pin to promote the piston pin hole (pay attention to assembly direction).
The replacement valve grinding bogey. In order to ensure the sealing performance of the valve, replace the valve and valve seat when the first valve reamer angle properly cut, then the grinding paste is coated between the valve and valve seat, valve grinding machine for grinding or manual grinding, until 1 from 1 to 1.5 mm wide, neat and dark grey continuous ring. Test method: the valve sealing valve assembly after cleaning by in situ re installed in the cylinder head, the intake and exhaust respectively into gasoline, after 1 to 2 minutes after the observation of valve and valve seat with no leakage phenomenon, it shows good seal.
Four Baotou beiben accessories back of bearing metal or paper pad. The crank shaft and bearing wear beyond a certain range, the increase of the gap. In the work, due to oil leakage, reduce oil pressure, resulting in poor lubrication, increased wear, but also issued an unusual percussion sound. Repair method: remove the crankshaft to repair factory with the crankshaft grinding machine for grinding and repairing, with thickened bearing shell to fit the dimensions, to restore the original performance. As in the back of bearing pad metal or paper, not only narrow the gap between the shaft and the bearing, and the crankshaft bearing pressure of the bearing deformation, destroy the original gap, especially the pad of paper, the heat transfer performance is greatly reduced.
Avoid Baotou beiben accessories oil designator for peg. After the engine is started, the oil indicator rises, which indicates that the diesel engine is well lubricated, and the oil spray hole is exposed, so that the oil is ejected from the hole, and the rolling back mechanism is lubricated. But some hand found oil indicator after the damage, pull away, smashing into a wooden peg. A wooden peg will block the oil spray hole, roll back mechanism without oil lubrication, accelerated wear of machine parts.