1, "squeak" dull sound This is the valve foot clearance is too large or too small voice. According to the manufacturer's data, adjust the clearance between the inlet and outlet doors. The general gap is between 0,012-0,022 mm.
2. The sound of “squeaking†loud noise This kind of sound is generally an exhaust pipe or a muffler. The explosion of the engine cannot be eliminated due to explosion. The exhaust pipe and muffler should be checked immediately.
3. The reason why the sound of the sharp sound-absorbing belt and the belt pulley rubs is that the belt is worn out or the gap is adjusted improperly. The belt must be replaced or the clearance must be adjusted.
4. The cause of the malfunction of the sound of the “click†noise is not a single one. It may be that the motor air-conditioner compressor or the water pump bearing (pindle plate) is damaged or the vehicle has ever run in the state of water loss or oil loss. Crankshaft damage caused by the size of the crankshaft, journal and shaft pin issued by the sound should be immediately checked and repaired.
5, "咣咣" percussive sound This sound may be the crankshaft journal and bearing clearance is too large and the impact should be checked to adjust the gap between the journal and the bearing shell.