Bosch kjetronic fuel injection part 1 volvo owners club. Cosworth dfv is a lucas fuel injection system model. The d jetronic system uses constant fuel pressure and flow, so that only injection duration needs to be modified to control airfuel mixture. The djetronic system uses constant fuel pressure and flow, so that only injection duration needs to be modified to control airfuel mixture. Kjetronic system overview fuel supply 14 fuel metering 18 adapting to operating conditions 24 supplementary functions 30 exhaustgas treatment 32 electrical circuitry 36 workshop testing techniques 38 kjetronic since its introduction, the kjetronic gasolineinjection system has proved itself in millions of vehicles. Bosch k is fitted to escort rs1600is, xr3is, sierra xr4is and 2. Bosch kjetronic cis tuning, 86hc, 87hc, 88 x180 esprit majority of the lotus owners are of the opinion, that bosch kjet cis equipped esprits would not respond well to common performance improvement practices. Service recommendations to help you service your vehicle. Using the lambda sensor together with additional equipment for the lambda closedloop control facility, the k jetronic can already comply today with the exhaustgas regulations of tomorrow. Mechanischelektronisch benzineinspuitsysteem met lambaregeling.
The bosch k jetronic fuel injection system is a continuous fuel injection system which consists of mechanical type fuel injectors, a fuel distributor unit, operated by a sensor plate, and a control valve. Het bestaat uit een mechanisch volkomen op zichzelf staand, niet door. Certain operating conditions make it necessary to correct the mixture accordingly. Since its introduction, the k jetronicgasoline injection system has proved itself in millions of vehicles. Fuel injection system the ke2jetronic fuel injection system is fitted to turbocharged engines. The delorean is equipped as standard with bosch k jetronic mechanical continuous injection ci common to a lot of cars of the same era. The delorean is equipped as standard with bosch kjetronic mechanical continuous injection ci common to a lot of cars of the same era. The kjetronic is the first mechanicalhydraulic and continuous fuel injection. The bosch djetronic electronic fuel injection system is composed of 3 major subsystems. Ljetronic fuel injection systems for bmw e12s peter florance. This system can be easily identified by the warmup regulator. In my opinion, there are several approaches, which.
Since injectors are suspected to work incorrectly, i quick check them. You can open them as pdf file or save them on your computer. Bosch ke jetronic system the bosch ke jetronic fuel injection system is fitted to escort rs turbo models and is a further development of the k jetronic system. The fuel distributor is the heart of the bosch remanufactured kjetronic and kejetronic fuel injection system used on many european cars. When making an enquiry it is essential that the full vehicle.
The final car to use k jetronic was the 1994 porsche 911 turbo 3. Since their introduction, the jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. This success is a result of the advantages which fuel injection can offer when considering todays demands for economy, performance, and cleaner exhausts. Let me tell you a short story about what really kejetronic is, just in case somebody doesnt know it so far. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the kjetronic when the engine is cold.
K jetronic is a continuous injection system cis, which means that the fuel injectors receive and produce a constant flow of fuel, provided there is proper pressure, whenever the engine is running. Nov 21, 2009 today, it has been superseded by gasoline injection systems which thanks to electronics have been vastly im proved and expanded in their func tions. Mercedes suggests that special tools are required to adjust the mixture on the bosch ke3 jetronic cise fuel injection, such as is used on the 198891 560 series motors. Bosch kjetronic cis tuning, 86hc, 87hc, 88 x180 esprit. I am also addressing the basic settings involved in adjusting the fuel mixture here. Mercedes suggests that special tools are required to adjust the mixture on the bosch ke3jetronic cise fuel injection, such as is used on the 198891 560 series motors. K jetronic since its introduction, the k jetronic gasoline injection system has proved itself in millions of vehicles. This development was a direct result of the advantages which are inherent in the injection of gasoline with regard to demands for economy of operation, high output power, and last but not least improvements to. Operation of rollercell pump 1 suction side, 2 rotor plate, 3 roller, 4 roller race plate, 5 pressure side. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the k jetronic. The engines fuel requirements a sparkignition engine needs a particular airfuel ratio in order to operate. This synthesis, comprising the mechanical basic functions coupled with electronic adap tation and opti mization functions, is the kejetronic.
Ferrari 400 k jetronic downloads ferrari 400 parts. The bosch d jetronic electronic fuel injection system is composed of 3 major subsystems. T his month im starting my multipart bosch k and ke jetronic article. We highlight doityourself items in the engine compartment for easy location. We found a pdf of how to disassemble and reassemble the wur, but of.
Mercedes benz, porsche, bmw, volvo, saab, volkswagen, audi, peugeot, delorean, ferrari, lamborghini, bentley, and. The warmup regulator, also called the control pressure regulator, lowers the control pressure of the k jetronic when the engine is cold. Someofus rememberthedayswhenwelookedat this systemand thought servicingthis willbeabreezethesystems almost entirely mechanical. Bosch licensed the concept to many automobile manufacturers. Jetronic is a trade name of a fuel injection technology for automotive petrol engines, developed and marketed by robert bosch gmbh from the 1960s onwards. Primarypressure regulator, kjetronic bosch classic. Thisis necessary due to the added complexity and increased power output of the engine, the system provides a higher degree of mixture strength control than that provided by the kjetronic system. The bosch kjetronic fuel injection system is a continuous fuel injection system which consists of mechanical type fuel injectors, a fuel distributor unit, operated by a sensor plate, and a control valve. It only appeared late in the development of the motorcar because the injection amounts are so small. The following photo shows a 450sl engine with cis kjetronic fuel injection. Often perceived as overcomplicated, the deloreans setup is about as complex as it gets with lambda and the. Repair kit to rebuild a bosch k jetronic fuel distributor metering, this kit will service all 8 cylinder aluminum units that do not have eha. Jan 25, 2012 cis fuel injection operation by bob tucker. K jetronic is a mechanical fuel injection system developed by bosch in the 1970s and is used in a wide variety of vehicles around the world.
These fuel injection systems were considered to be really reliable and trustworthy. The primary pressure regulator that is installed in the fuel distributor housing maintains a constant pressure in the fuel system of the kjetronic. Gasoline fuelinjection system kjetronic fuelinjection. Jan 04, 2009 this is a vw kr engine with bosch k jetronic injection. Kjetronic is a continuous injection system cis, which means that the fuel injectors receive and produce a constant flow of fuel, provided there is proper pressure, whenever the engine is running.
The kjetronic system was installed as original equipment in series production vehicles in the years 1973 through 1995. This further deflects the control plunger in the fuel distributor and correspondingly supplies additional fuel. Mechanical fuel injection bosch k jetronic, bosch k jetronic fig. The warmup regulator is installed on the engine to absorb its heat. Before troubleshooting, testing or adjusting the k jetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc.
Remove one injector line from the top of the fuel distributor, and while looking into the injector port in the top of the fuel distributor. Het kjetronic injectiesysteem is een volkomen nieuwe methode voor benzineinjectie. Often perceived as overcomplicated, the deloreans setup is about as complex as it gets with lambda and the bosch constant idle speed cis control. Thisis necessary due to the added complexity and increased power output of the engine, the system provides a higher degree of mixture strength control than that provided by the k jetronic system. It has the m110 engine fitted with bosch k jetronic fuel injection and it doesnt have an oxygen sensor. Onsomeljetronic systems, the air temperature sen sor is visible in the air flow meter inlet. Troubleshooting symptoms kjetronic is a mechanical system. The title of this pdf download which mentions the number 1 987 722 101 on the last page in the right bottom corner is ke jetronic book. This is a vw kr engine with bosch kjetronic injection. Warmup regulator, this is cis injection the following photo shows a 450sl engine with djetronic fuel injection. L jetronic system fuel injectors n open when energized by ecu not continuous as k jetronic.
Kjetronic is a mechanical fuel injection system developed by bosch in the 1970s and is used in a wide variety of vehicles around the world. But wedidnt anticipate the ravages offuel con tamination. Apart from minor alterations the basic principles of the hydraulics and mechanics used on the kjetronic system are unchanged on the kejetronic system. R02cr e b colqegu couivo\ aglase we guq ph ph ecn le logq coucvtloue eae16uj sqgble 10 cugua vqsblsqou ob6lguua couqguoue guq nuq6l bgl11cr1gl logq. Wealso didntknowthatthesystemwould evolve into electronically controlledversions suchas klambda and ke. The k jetronic is a mechanical system in which the fuel is continuously metered in accordance with the amount of air drawn in by the engine. Therefore, alterations to any of the settings should not normally be nceessary. Since the electric fuel pump supplies more fuel that is used by the engine, a valve in the pressure regulator opens and returns this excess fuel to the fuel tank.
Rolls workshop manual engine management systems b royce v rollsroyce b bentley u motor cars rollsroyce silver spirit rollsroyce silver spur rolls royce corn iche rollsroyce comiche ii bentley eight bentley mulsanne bentley mulsanne s bentley turbo r. Electrical and vacuum operated regulators and switches complete the assembly. Covers bosch motronic and jetronic injection systems including d, l, lh, k and kejetronic systems 176. It is a euromarket 1979 280ge lwb with a manual transmission. Aug 31, 2009 after assembly of the fuel system, run the fuel pump and depress the air flow sensor plate for a couple of seconds to bleed air out of the fuel distributor. A thorough understanding of the various components is required before working on k jetronic fuel systems. For complete injector testing diffrent equipment is required. Before troubleshooting, testing or adjusting the k jetronic fuel injection system, the. A thorough understanding of the various components is required before working on kjetronic fuel systems. Bosch kjetronic fuel injection since their introduction, the jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. Approximately up until 1994 mechanical fuel injection systems have been installed on certain mercedes, audi, volkswagen, ford etc. Since this point, the kjetronic has now become particularly impor tant with regard to maintenance and repair. Most of the information i will use comes from course notes i have from attending the ford service training college at daventry on the bosch kjetronic fuel.
This development was a direct resultof the advantages which are inherentin the injection of gasoline with regard to demands for economy ofoperation, high output power, andlast but not least improvements tothe quality of the. This kit will service the following fuel distributors. In addition, the technology delivers the minutest pressure difference valves. Before troubleshooting, testing or adjusting the kjetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc.
The key is to advance the timing to the peak power point. This synthesis, comprising the mechanical basic functions coupled with electronic adaptation and optimization functions is the. Fuel metering distributor repair kit for bosch k jetronic 8. Bosch ke3 jetronic 539 89 injection system manual 328 mondial to read online or download as pdf.
These adjustments are intended to be followed by an. This system can be easily identified by the air slide valve which is not present on kjet. K jetronic system overview the k jetronic is a mechanically and hydraulically controlled fuel injection system which needs no form of drive and which meters the fuel as a function of the intake air quantity and injects it continuously onto the engine intake valves. Bosch kjet mixture setting posted on august 31, 2009 by larry fletcher comments off on bosch kjet mixture setting after assembly of the fuel system, run the fuel pump and depress the air flow sensor plate for a couple of seconds to bleed air out of the fuel distributor. K jetronic system overview fuel supply 14 fuel metering 18 adapting to operating conditions 24 supplementary functions 30 exhaustgas treatment 32 electrical circuitry 36 workshop testing techniques 38 k jetronic since its introduction, the k jetronic gasoline injection system has proved itself in millions of vehicles. The details in this file refer to ke jetronic 19841987 on the us coupe and 4k the 1987. Fuel injection system the ke2 jetronic fuel injection system is fitted to turbocharged engines. Bosch k jetronic fuel injection since their introduction, the jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. Kjetronic fuel control unit on a 102 engine at a glance. These adjustments are intended to be followed by an actual exhaust gas co check to ensure. Today, it has been superseded by gasoline injection systems which thanks to electronics have been vastly im proved and expanded in their func tions.
If the inlet air temperature sensor fails its resistance tests, you cant service just the sensor. Before commencing any fault diagnosis or work on the fuel injection system ensure that the workshop safety precautions are fully understood. Apart from minor alterations the basic principles of the hydraulics and mechanics used on the k jetronic system are unchanged on the ke jetronic system. This manual will describe the kjetronics function and its particu lar features. Supplied in a clear pouch with all adapters, adapter application chart, hookup and parts schematic drawing and complete instructions. Bosch kejetronic system the bosch kejetronic fuelinjection system is fitted to escort rs turbo models and is a further development of the kjetronic system. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig. The dedicated shade tree mechanic can do it, but needs to be wellinformed first. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. There are several variations of the technology offering technological development and refinement. There is so much mystery surrounding the cis continuous injection system fuel system bosch has dubbed k jetronic, i wanted to try and make some sense of it for all porsche owners.
187 123 695 150 1354 783 349 57 541 1466 1296 1417 1042 1054 751 493 439 968 1051 520 290 943 1143 595 1429 331 928 1424 617 1193 1012 111 134 1030 963