Today, it has been superseded by gasoline injection systems which thanks to. Using the kjet fuel pressure test kit notes from experience with 1979 volvo 244dl and a 1983 volvo 244ti turbo. Apart from minor alterations the basic principles of the hydraulics and mechanics used on the kjetronic system are unchanged on the kejetronic system. How to tune and modify bosch fuel injection motorbooks. It is connected to a bimetal plate heater that is located inside and used to regulate the fuel pressure. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system kjetronic was installed as original equipment in seriesproduction vehicles. Gasolineengine management 4 gasolineengine management driveline torque factors 1 ancillary equipment alternator, ac compressor, etc.
Ebook handbook textbook user guide pdf files on the internet quickly and easily bosch k. Fuel injection fundamentals porsche club of america. Gasolineengine management gasoline fuel injection system k jetronic technical instruction published by. If i replace the preasure control unit, the line will end up being too short. Lets start by looking at how simple fuel injection is fuel fundamentals v p x t x a v volume of fuel through the injector p fuel pressure behind the injector t time the injector is open a area of the injector orifice cis kjetronic dme motronic afc ljetronic mpi djetronic. Bosch k jetronic mechanical fuel injection troubleshooter note. D some of these have thin spots from rubbing on other parts.
Ferrari mondial qv 1985, kjetronic fuel injection reinstallation. Combustion in the gasoline engine the sparkignition or ottocycle engine gasolineengine management technical requirements cylinder charge mixture formation gasolineinjection systems overview kjetronic system overview fuel supply fuel metering adapting to operating conditions supplementary functions exhaustgas treatment electrical circuitry workshop. Cdocuments%20and%20settingstimdesktopcarburetormanual. Bosch kejetronic system the bosch kejetronic fuelinjection system is fitted to escort rs turbo models and is a further development of the kjetronic system. Bosch k jetronic fuel injection manual pdf document bosch k jetronic fuel injection manual 1. Please refer to our instruction manual on cleaning cold start injectors with the pulse. I guess the sitting around is probably what killed the seals from the stale fuel. Using a pair of v ise g rips long nose style, gently squeeze the tubing coming from the fuel filter to the injection system. Bosch kjetronic fuel injection systems volvo owners club. Automotive equipment business sector, department for automotive services, technical publications khpdi2. There is also a 12v power socket on the top of the cpr. 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 the quality of the exhaust gases. The lower connection hose is attached to the pipe that is connected to the kjetronic fuel distributor control input.
The bosch fuel injection book you need is the one by charles probst. Vw ljetronic fuel injection workshop manual author. The fuel is injected by solenoidoperated fuelinjection valves into the. 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. Gasoline fuel injection system k jetronic tions since this point the k jetronic has now become particularly impor tant with regard to maintenance and repair this manual will describe the k jetronic s function and its particu lar features would you like some free manuals. Kjetronic maintenance calibration audi b2 resource. This type of high pressure fuel pump is denoted as a roller cell pump, with the fuel entering the pump and being compressed by rotating cells that force it through the pump at high pressure. 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. K jetronic friends of pdf all our visitors are our friends. Since this point, the kjetronic has now become particularly impor tant with regard to maintenance and repair.
Kjetronic porsche always use new gaskets, seals and 0rings when installing components or fuel lines. The system pressure of the kjetronic can not be reduced like an efi system when cleaning with our lb2912f flow meter. Kjet mechanical fuel injection depends on continuous regulation and variation of fuel pressure delivered to the injectors. The ferrari workshop manual info on the earlier cis is mostly inapplicable. This video covers the reinstallation of the mondials fuel injection system.
Kjetronic fuel injection system, the ignition system and the mechanical system of the engine compression, valve timing, etc. For more than ten years, porsche used the bosch kjetronic continuous injection system cis on all production 911s. Vdtu 31 in the bosch technical in struction series. The only vehicle that runs a higher pressure than this is the porsche turbo carrara models from 1975 to 1979 which have a system pressure of 600 kpa. The valve is in the part with the fuel lines connected to it. Mercedes w108 sel 350 d jetronic injection trigger points replacement here. The system in general is very reliable, and was only bested in 1984 by the introduction of the motronic engine management system that controls both ignition and fuel injection together. Bosch k jetronic fuel injection service repair manual. Cis kjetronic fuel injection pressure tester with quick.
The r107 450sl convertible roadster fulfilled the luxury sports car market for most of the 1070s. Workshop manual porsche kjetronic pdf book manual free. Kjetronic fuel systems have an electric safety circuit which prevents the electric fuel pump and. The fuel distribu tor allocates this fuel to the injection the kjetronic is a mechanically and valves of the individual cylinders. Inlet manifold depression is measured using a pressure sensor located in, or connected to the intake manifold, in order to calculate the duration of fuel injection pulses. May 07 2020 bosch k jetronic fuel injection servicerepairmanual 15 pdf drive search and download pdf files for free. Kjetronic since its introduction, the kjetronic gasolineinjection system has proved itself in millions of vehicles. Mechanical fuel injection bosch kjetronic, bosch k jetronic fig.
Read online bosch k jetronic service guide book pdf free download link book now. When installing the mixture control unit, tighten the fastening screws uniformly. Approximately up until 1994 mechanical fuel injection systems have been installed on certain mercedes, audi, volkswagen, ford etc. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector all diesel engines use fuel injection by design. The following information is a revision of, or supplementary to, that contained in part b of. Do not pinch the line, you only need as much pressure as to prevent gas from pouring out.
Download bosch k jetronic service guide book pdf free download link or read online here in pdf. Kjetronic found my fuel leak 5 years 5000km it lasted since reseal. Metered fuel through a mechanical injector, continuous flow. On the photo 2 you can see the reverse side of the regulator.
This is an inline pressure tester which indicates problem sources control pressure regulator, fuel distributors or other specific fuel injection components that may require replacing. Robert bosch gmbh, 2000 postfach 30 02 20, d70442 stuttgart. Bosch k jetronic fuel injection manual pdf document. Continuous injection system found on european cards and volkswagen models assembled in the u.
The average system pressure on all kjetronic fuel systems should be 520 kpa. Adjusting the control pressure regulator on the kjetronic. 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. Mechanical fuel injection bosch kjetronic, bosch k jetronic. Bookmark file pdf bosch k jetronic fuel injection service repair manual bosch k jetronic fuel injection service repair manual. Line or system pressure readings will help define a problem with the fuel delivery system such as the pumps and filter. Verify that these systems are in proper working order before proceeding further. Djetronic loom replacement replacing the fuel injection loom on the djetronic p18s and 140s is really pleasingly straightforward, just be careful when. Fuel injection pumps bosch service repair workshop manuals.
Bosch k jetronic fuel injection manual linkedin slideshare. Petrol gasoline fuelinjection system kjetronic manual. Whenever work is performed on the fuel injection system, the idle and co must be adjusted. Experiencing, listening to the new experience, adventuring, studying, training, and more practical deeds may assist you to improve.
Since their introduction, the jetronic fuel injection systems have proved themselves millions of times over under the harsh conditions of everyday driving. Continuous injection system found on european cars and volkswagen models assembled in the u. Bosch k jetronic mechanical fuel injection troubleshooter. Us cars produced from 1972 through 1975 used the m117. The kjetronic is a mechanical fuel injection system which injects continuously and which needs no form of drive whatsoever.
The fuel is supplied by an electrically driven fuel pump which develops the pressure necessary for injection. 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. Vw ljetronic fuel injection workshop manual created date. Originally, this system was called jetronic, but the name djetronic was later created as a retronym to distinguish it. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. Gas engines can use gasoline direct injection, where the fuel is directly delivered into the combustion chamber, or indirect injection where the fuel is mixed with air before the intake. Tuning and adjusting cis fuel injection pelican parts. It doesnt quite match the typical kjetronic diagram in the bosch kjetronic technical instruction book but it may be just a nomenclature difference. Bosch cis fuel injection age related issues with kent. Djetronic 19671979 analogue fuel injection, d is from german.
Gasolineengine management gasoline fuelinjection system kjetronic technical instruction. Boschmonojetronicmanual 33 pdf drive search and download pdf files for free. Media in category k jetronic the following files are in this category, out of total. Where can i buy the plastic fuel line material the preasure control line is.