What should I do if the temperature of the diesel generator is too high?

Diesel generator overheating will also form the oil temperature rise, prompting the lubrication role of weakening, to the normal work of diesel engines bring great trouble. There are many reasons, the following we list the main reasons for the diesel generator temperature is too high and the solution:.

1, diesel generator set long-term use of hard water, generator set use, the water tank temperature, then the water tank and waterways everywhere will form a large amount of scale, resulting in poor heat dissipation.

2, the generator set seriously burn oil, resulting in too much carbon, poor heat dissipation.

3, the oil supply early angle is too small, the diesel engine afterburning, resulting in the diesel engine in the work of the body temperature is too high.

4, diesel generator internal intake and exhaust valves are not closed, valve clearance is too small, too much carbon in the combustion chamber, or uneven oil supply in each cylinder of the diesel engine, will make the heat in the cylinder is not issued, the formation of the cylinder internal temperature is high.

5, the generator body and cylinder head waterway impurities deposited too much, so that the water circulation is not smooth, causing poor heat dissipation.

6, diesel generator operation improper use. Start the diesel generator should first use the small and medium throttle warm-up period, not suddenly increase the throttle, increase the load, otherwise it will make the diesel generator work poorly, the temperature rises. Or diesel generator overload for a long time, will also lead to diesel generator temperature is too high.

7, the oil supply time is too late to cause diesel generators overheating.

8, insufficient cooling water, and cause diesel generators overheating.

9, immediately after repair into full-load operation, easy to cause moving parts overheating, or jammed due to too small a fit clearance.


A, the electric fan belt tightness check, keep the electric fan belt tightness in line with the technical provisions of the diesel engine (in the electric fan seat and belt plate center position press the electric fan belt, with a torque of 30–50N.m can press the road 10–15mm as normal)

B. After repairing and assembling the water pump, fill the cooling water radiator with water, start the diesel engine to extra speed, and after a period of observation, find that the diesel engine body temperature fits the regulations, the problem of high body temperature is cleared.

1、Stop the engine and add cooling water after the temperature drops, and exclude the water leakage phenomenon

  2、Adjust the belt tightness

  3、Clean the cooling system

  4、Clear the dirt, blow through the core with compressed air

  5、Reduce the load

  6、Replace the new water temperature meter, etc.

  7、Repair or replace the water pump impeller

  8、Repair the guide fan

  9、Replace the appropriate viscosity of the oil

The temperature of the generator set is too high, will lead to a reduction in the clearance of moving parts, reduce the strength, poor lubrication, and in serious cases may cause cylinder pulling, holding shaft accidents. Therefore, when the diesel generator set temperature is too high to timely repair, so as not to cause irreparable damage.

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