In the case of Baotou North Benz engine, when the starting system is in good condition, if the transmission is in neutral position, according to the starting switch, the starter has sound and the crankshaft can not rotate, which belongs to the mechanical fault. The causes of engine crankshaft failure and the diagnosis and repair methods are as follows.
One reason
1 Baotou North Benz parts starter and flywheel tooth meshing bad. Gear ring and starter gear in the start of the engine will hit, resulting in tooth damage or tooth wear. If more than three teeth damage or wear serious, starter gear and gear teeth will be difficult to mesh.
2 cylinder. The parking stall when the engine temperature is too high, it is difficult to dissipate heat, piston ring and cylinder adhesion under high temperature and after cooling can not start.
3 crankshaft locking. The lubrication system failure or lack of oil caused by dry friction sliding bearings, eventually locking crank to start.
4 fuel injection pump plunger die.
Two diagnosis and repair methods
1 if the northern part of Baotou Benz flywheel has more than three teeth damaged, and with the starter teeth exactly the opposite, it will lead to the two gears can not mesh. In this state, only to turn a crowbar to pry the flywheel angle, and then press the start button to start smoothly. For damaged flywheel teeth, welding repair can generally be used.
When the 2 gear ring is loose, it can be confirmed from the start of the flywheel housing starter. If the ring is loose, you must replace the new parts. In the installation, you should first put the ring in the heating box heating, and then hot pressed on the flywheel, cooling can be fastened on the flywheel.
When the teeth of the 3 tooth ring are seriously worn unilaterally, the gear ring can be pressed down, and the front and the back faces are turned over, and then used on the flywheel.
4 after the inspection of gear meshing, the flywheel rotation does not start, it should be regarded as the North Benz accessories inside the engine fault, such as crankshaft locking, piston stick cylinder, clutch card lag, which should be further observed. Can check whether or not the clutch stuck, and then check whether the fuel injection pump plunger and internal combustion engine, such as the failure of foreign bodies.