The Reasons of High Water Temperature of Tractor Engine

High tractor engine water temperature usually has the following two conditions. The first is that the heat dissipation is not good, and the second is that the engine itself generates too much heat. Below we will analyze tractor with engine problems of these two situations in details. 

 

1. The engine itself does not dissipate heat well

(1) Check the tractor water pump. Open the water tank cover and start the engine to make the engine run at high speed and low speed alternately. At the same time, check whether there is any obvious rolling phenomenon in the water tank. If there is, it can be considered that the pump is normal. Check the tractor engine details carefully.

 

(2) Check the thermostat. Open the tractor engine head. Remove the thermostat and check the opening temperature of the thermostat. Suspend the thermostat and thermometer in the water container, then heat the container, check the starting temperature of the thermostat, continue heating, note the full opening temperature of the thermostat, and check whether these two temperatures are within a reasonable range. Finally stop heating, wait for the water temperature to drop below 82 ℃, check whether the thermostat is in the closed position. Otherwise, the thermostat needs to be repaired or replaced.

 

(3) Check the water tank (including radiator). Check whether there is fouling on the surface of the water tank, whether the heat dissipation air duct and the water flow channel inside the water tank are smooth. 

 

(4) Check the tractor engine fan. Check whether the fan blade is damaged, severely deformed or reversed, and whether there is sway vibration. If there is, it should be excluded immediately.

 

(5) Check the fan belt. Press the fan belt with your hand to see if the tightness is normal. If the belt is loose, further check the fan belt for slippage.

 

(6) Check the tractor wind radiating system. Water-cooled engines mostly use suction cooling. The air on both sides of the water tank can't produce convection phenomenon. Except for the communication of the water channel of the water tank, all other parts should be cut off. It cannot be ignored that after many machines are used for a period of time, the barrier material will deteriorate and fall off seriously, so that there is an air passage around the water tank, which reduces the air flow through the water tank and causes high temperature. In actual tractor engine maintenance, this situation is more common.

 

(7) The tractor engine is too dirty. Check whether the engine housing and waterway are too fouled. If it is, it should be cleaned up. The tractor engine cleaner is very important.

 

2. The Engine's Own Heat Is Too High

(1) Excessive wear of moving parts. Excessive wear of moving parts such as cylinder liners and bushes will generate additional heat when the machine moves. If the heat exceeds a certain value, the water temperature will be too high.

 

(2) The fuel supply time is incorrect. If the fuel supply time is incorrect, the engine will be difficult to start, the power will drop, and it will be accompanied by abnormal smoke exhaust. There will be obvious knocking sound when the fuel supply time is too early or too late.

(3) Too little cooling water and too little oil. Check whether the water volume and oil volume are normal, and make up if insufficient.

 

(4) Overload operation. Confirm whether the machine is overloaded for a long time, if it is, immediately change to normal operation, and check whether the water temperature is normal after a period of time.

 

It is worth noting that the excessively tractor high engine water temperature is not only caused by one or two of the above factors sometimes, but also the result of a combination of different factors. Therefore, comprehensive judgment from different aspects is needed .

 

In addition, the high temperature caused by different factors will be different in terms of high temperature level and speed. For example, the high temperature caused by excessive wear of moving parts is slower than the temperature rise caused by the failure of the water pump and the broken fan belt. When troubleshooting, you should find the cause of the high temperature as soon as possible according to different high temperature phenomena, so as to adopt corresponding treatment methods.