Once the entire circumference of the gap will do, without Gasoline fuel injection system k jetronic strong effort arms rotate the two halves of the dispenser in different planes, they gradually disunite. Install the drawer and reconnect the fuel lines and electro-hydraulic valve, with the exception of the fuel from the dispenser to the injectors.
The manometer gage readings should reach in such case 9 to 12 atmospheres which indicates that the gasoline pump operates well. Alternately, clean the dispenser halves in an ultrasonic bath about 15 minutes for each of both of them. During this controlling the adjustment marks is obligatory.
Disassembling the fuel control unit the fuel distributor. Originally, this system was called Jetronic, but the name D-Jetronic was later created as a retronym to distinguish it from newer versions. Mono-Jetronic is different from all other known single-point systems, in that it only relies on a throttle position sensor for judging the engine load.
Thus the fuel collected at this point is the maximum accumulator volume. Be sure to check that. Use the switch that has been installed instead of the gasoline pump operational relay set at the beginning.
This system features one centrally positioned fuel injection nozzle. Experience has proven that those cars that are equipped with mechanical fuel injection systems are hardly welcomed by the car-care centers. Fuel injection valve open at a given pressure and atomize the fuel and inject onto the intake valves.
D-Jetronic was a precursor of modern common rail systems as it had constant pressure fuel delivery to the injectors and pulsed injections, albeit grouped 2 groups of injectors pulsed together rather than sequential individual injector pulses as on later systems.
As we are aware that the air flow quantity will decide the fuel injection quantity, accurate measurements of the air flow is required. Also there fuel in the system itself is under high pressure because of the petrol overstock. To check the gasoline pump pressure margin you can use common pliers.
For instance, if the air flow rate is high, then the control plunger will move a larger distance against the spring to open the metering slit to a greater extent.
Screw the fuel validation check dispenser as indicated above. A rotor plate with notches 4 to 6 around its circumference is placed eccentrically inside the roller race plate. The lack of processing power and the unavailability of solid-state sensors meant that the vacuum sensor was a rather expensive precision instrument, rather like a barometerwith brass bellows inside to measure the manifold pressure.
The amount of fuel for each of the sections should be equal to any of the other ones. Now let us have a look how Bosch KE-Jetronic fuel injection system can be diagnosed and repaired on an example of Audi 2.
Fuel filter is often a combination of a paper filter, followed by strainer. Check the fuel pressure in the lower metering unit sections. When the engine is running, the fuel enters the accumulator volume and pushes the diaphragm against the spring force.
Be sure that there are no air leaks at the moment.
After that be sure to start cleaning thoroughly and blow dry the remaining water with compressed air. Depending on the position of the sensor plate in air flow sensor, the fuel distributor meters the sufficient quantity of fuel to be distributed to individual cylinders.
The valve needle oscillates at a high frequency when operated. The air flowing through the air funnel deflects the sensor plate from its zero position to a certain amount. The movement of the control plunger decides the quantity of fuel to be injected.
The volume of air taken in by the engine is measured to determine the amount of fuel to inject. This ensures higher degree of filtration. When the fuel supplied by the fuel pump exceeds the limit, the plunger moves against the spring to open the exit port.
The fuel is trapped between the roller and the notch in the inlet port side and as the rotor rotates towards the exit port side, the fuel is pressurized and sent out through the exit port. KE-Jetronic — [ edit ] Electronically controlled mechanical fuel injection.
The constant shifting of the plunger maintains the pressure in the rail. Removing the three mounting screws may appear somewhat difficult. Basically, such conclusion can be made based on a large number of cars that had such injection systems installed by the manufacturers during that time.
Sometimes it takes polishing aluminum sealing washers to prevent fuel leakage. As a result, more fuel will be delivered to the injection valve. Detach the operational fuel pipes from the metering unit and from the fuel distributor that leads the fuel towards nozzles from the metering unit side.
Be sure not to forget, that the electrohydraulic valve fixing screws are made of special non-magnetic alloy and their replacement by non-specialist is prohibited.BPH Gasoline Fuel-Injection System Mono-Jetronic Bosch Technical Manual by Manufacturer.
Currently unavailable. Gasoline Fuel Injection System Ke-Jetronic(Bosch Technical Instruction)[GASOLINE FUEL INJECTION SYSTEM][Paperback] Feb 29, by RobertBosch.
Currently unavailable. Bosch K, K with Lambda, KE-Jetronic. BOSCH L-Jetronic Injection killarney10mile.com Author: Crit Keywords: Bosch L-Jetronic L Jetronic RX-7 Brought to you by the team at killarney10mile.com Created Date. A mechanical fuel injection system designed and built in-house by Daimler-Benz was used untilwhereas the Bosch D- Jetronic electronic fuel injection was used from Several years later came a switch to K-Jetronic.
Combustion in the gasoline engine The spark-ignition or Otto-cycle engine 2 Gasoline-engine management Technical requirements 4 Cylinder charge 5. Mechanical fuel injection - Bosch K-Jetronic, Bosch K Jetronic The Fuel Filter Due to the extremely fine tolerances within the Bosch K Jetronic system, it is vital that the filter has excellent filtration properties.
Approximately up until mechanical fuel injection systems have been installed on certain Mercedes, Audi, Volkswagen, Ford etc.
car models – starting with Bosch K-Jetronic, and after that – .Download