Diesel Injectors are a critical part of the engine management and propulsion system. The purpose of the diesel injector is to convert diesel fuel from a liquid to a vapour which is then sprayed into the combustion chamber of the diesel engine. Correct performance of the injector is imperative in order for efficient combustion to take place. To achieve this, the injector has to provide a specified amount of fuel, at a specified time in the ideal condition.
The common rail injector is now the most regularly used injector for diesel engines and comes in two types i.e., the solenoid type injector and the piezo type injector. The main differentiator between the two injectors is the speed and accuracy with which they inject diesel fuel. The use of piezo elements on the actuators of the piezo type injector results in a faster response time when compared to the solenoid type injector. The solenoid-type injector uses a solenoid on the actuator to control fuel injection by opening and closing the control valve with magnetic force.
We have significant experience in working with original equipment manufacturers (OEM), original equipment suppliers (OES) and aftermarket manufacturers who specialise in diesel fuel injectors. We can also offer a range of components for the repair of your diesel injectors.
The difference between your diesel injection system working at its optimum and performing badly can be a large financial cost, so understanding the performance of your unit injector is important.
The diesel injector should be replaced prior to it becoming faulty, as this could significantly reduce your cost of repair and minimise the impact of failure on other elements of the engine.
The most common cause of diesel injection failure is due to fuel contamination. This occurs when micro fine particles in the fuel gets past the filtration, destroying the sealing surfaces. Water in the fuel is also another factor. This leads to corrosion since everything on the inside of the injector is metal which consequently leads to debris in the system. Water can enter the fuel through the delivery system and through the tank vent. It is therefore very important that fuel is always purchased from a reputable service provider and that a good quality fuel/water separator is utilised. Periodic inspection of the vehicle’s tank vent is also recommended. Incorrect installation can also cause performance issues and lead to failures. Manufacturer’s procedures should always be followed when installing injectors.
To ensure that you are getting a quality diesel injection, ensure that your vehicle is serviced by suitably qualified and experienced diesel experts who use injectors produced to OE specifications. Failure to do this can cause extensive damage and expensive repairs to your engine.
