Fuel Injection Pump 101605-9880 400912-00061

Fuel Injection Pump 101605-9880 400912-00061 Overheating is a common but easily overlooked problem that can lead to serious mechanical failure or even engine damage, this post will give you details on why this failure occurs and how to get the problem solved.

1. Fuel injection pump 101605-9880 400912-00061 Causes of overheating

(1) Insufficient oil: The fuel injection pump works for a long time under insufficient oil, which will generate a lot of heat due to friction, resulting in a rapid increase in the temperature of the pump body.

(2) Cooling system failure: diesel engine will generate a lot of heat during the working process, if the cooling system (such as water cooling system) fails, the water temperature in the tank will rise, which will indirectly lead to overheating of the fuel injection pump.

(3) Motor overload: the fuel injection pump is usually equipped with a motor, when the motor load is too large or the motor itself is faulty, it will lead to overheating of the motor, which in turn will cause the fuel injection pump to heat up as a whole.

(4) Problems with the fuel supply system: Leakage from the fuel supply system, insufficient fuel supply pressure from the fuel supply pump, or an injection volume of the fuel injection pump that is less than the calibrated value may result in an increase in the fuel injection temperature. This may be due to leakage of the oil supply pump piston, poor sealing of the inlet and outlet valves or wear of the injection pump plunger.

(5) Injector clogging or poor atomization: Injector clogging or poor atomization will reduce the amount of fuel injected, so that the fuel combustion in the combustion chamber is incomplete, resulting in an increase in the injection pump temperature.

(6) Engine intake system problems: engine intake system problems, such as intake pipe leakage or intake valve does not work properly, will lead to too thin a mixture, affecting the fuel combustion efficiency, thus increasing the temperature of the fuel injection pump.

(7) Ignition system problems: inaccurate ignition time or spark plug damage and other ignition system problems, will also lead to incomplete combustion of the mixture, causing fuel injection pump overheating.

2. Fuel injection pump 101605-9880 400912-00061 Effects of overheating

(1) Performance degradation: Overheating will cause the fuel injection pump to work less efficiently, which in turn will affect the engine's power output and fuel economy.

(2) Damage to components: Long-term overheating may damage the internal components of the fuel injection pump, and even lead to deformation or rupture of the pump body.

(3) Safety hazards: Overheating may cause fuel leakage or fire, posing a threat to vehicle and personnel safety.

3. Solutions

(1) Check and refill oil: Check the oil level regularly to ensure that there is sufficient oil to lubricate the fuel injection pump and reduce heat generated by friction.

(2) Maintain the cooling system: Regularly check the performance of the cooling system, including the radiator, water pump, water pipes and other components, to ensure that the cooling water circulates properly and to prevent the water temperature from being too high.

(3) Check the status of the motor: regularly check the working status of the motor to ensure that the motor is moderately loaded and avoid overloaded operation. For damaged motors, they should be replaced in time.

(4) Troubleshooting and repairing oil supply system problems: check the sealing of the oil supply system and repair the oil leakage parts; check the performance of the oil supply pump and the injection pump to ensure that their oil supply pressure and injection volume are in line with the standard.

(5) Clean or replace the injectors: clean the injectors regularly to prevent clogging; for injectors with poor atomization, they should be replaced in time.

(6) Check and repair the engine intake system: regularly check the sealing and working condition of the intake pipe and intake valve to ensure that the mixture concentration is moderate.

(7) Check and maintain the ignition system: Regularly check the performance of the ignition system, including ignition time, spark plugs and other components, to ensure that the ignition system works properly.