Mechanical fuel injection bosch kjetronic, bosch k jetronic fig. You can experience an airlock while trying to bleed the fuel system if all of the injection lines are loose at one time while cranking the engine. The mechanical bosch continuous injection ci fuel system is standard on all gasoline engine 240 and 260 models, 1974 140 models and all 1980 and later models except the b21flh and the b23flh. This web site is dedicated to the lucky few who own or work on lucas mechanical fuel injection. Gasoline fuel injection system kjetronic dmcnewsgasoline fuel injection system kjetronic exhaustgas treatment 32. The diesel engine is known as a compressionignition engine, while the gasoline engine is a sparkignition engine. Carburetor fuel injection is an advancement of the mechanical fuel injection method. Vw golf 2015, golf variant 2015 repair manual engine mechanical, fuel injection and ignition pdf free onlinerepair manual golf 2015 golf variant 2015 engine mechanical, fuel injection and ignitionengine id. Volkswagen golf pdf workshop, service and repair manuals, wiring diagrams. The two main subassemblies of the system are the air meter and fuel meter. Delivery valve is a type of valve that provides retraction of delivery line pressure causing the nozzle.
Triumph, ferrari, lotus, maserati, canam, f1, f5000, b. Continuous mechanical fuel injection repair guide autozone. What you need to know about mechanical fuel injection. Download 3406b caterpillar mechanical fuel injector repair manual book pdf free download link or read online here in pdf. All books are in clear copy here, and all files are secure so dont worry about it. 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. The mechanical fuel injection system has recently been overshadowed by. Mechanical fuel injection is used to indicate the metering functions of the fuel injection system. One recent application tested racing carbs, efi, and mechanical fuel injection all on the same racing engine. Gms 1st fuel injection system the fuel injection systems are designed and built by rochester products. Pdf diesel fuel injection pumps, dpa lucas cav type. Kinsler fuel injection manufacturing, sales and service. Levavasseur designed the original antoinette firms series of vform aircraft engines, starting with the antoinette 8v to be used by the aircraft the antoinette firm built that levavasseur also designed, flown from 1906 to the firms. Mechanical fuel injection works well for naturallyaspirated or forcedinduction engines and handles most any type of fuel gas, ethanol blends, methanol, and even nitro blends.
The main difference between carburetor and fuel injection system carburetorzfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection systemzthe fuel speed at the point of delivery is greater than the air speed to atomize the fuel. Do i need to use a mechanical fuel pump with mechanical fuel injection or can i substitute an electric pump. These pumps are between 40 and 50 years old most do not flow correctly. Mechanical fuel injection systems first saw light of day at the turn of the century, however the following 100 years has seen the system evolve from a very basic and almost crude fuel delivery system, to the recent mass produced versions of the bosch k and ke jetronic. This brochure describes the timing and adjustment of the mechanical fuel. Cav dpa injector pump no fuel to injectors after bleeding. Crank the engine over until fuel free of bubbles flows from the injector, tighten the injection line. Volkswagen golf the car of the german company volkswagen.
Mechanical fuel injection diagnosis and repair aneroid is a smoke limiting device. It differs from the electric fuel injection see above in that injection. Ctm170level 4 electronic fuel systems with bosch vp44 pump ctm207 mechanical fuel systems ctm207 covers the fuel systems formerly included in ctm104. Ddc mechanical unit injection system engines were engineered using the imperial system. Slide type fuel injector working principal marine engineering. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system kjetronic was installed as original equipment in seriesproduction vehicles. It was discontinued partway through 1965 in favor of the chevrolet big block as a performance option.
The injection pump is an inline, plunger type, with an individual plunger and barrel pumping element for each engine cylinder. Engine output is controlled by a mechanical governor in most truck and bus applications that regulates fuel quantity by controlling the unit injector fuel racks. Instajet is an electronic device that will maintain a more stable air fuel ratio throughout the operating range of the engine that uses mechanical fuel injection. Mechanical fuel injection alkydigger technical info. Nov 15, 2017 working of fuel injector pump of diesel engine and speed control of diesel engine duration. Vw golf 2015, golf variant 2015 repair manual engine. When the engine is at wot, the highpressure oil can reach 3,000 psi. Fax 2483621032 1834 thunderbird street troy, mi 48084 usa. High horsepower tuning for mechancial fuel injection. Use a smaller bypass to richen the fuel mixture and a larger bypass to lean it. Mar 02, 2012 gasoline model mercedes sitting too long. The main difference between carburetor and fuel injection system carburetor zfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection system zthe fuel speed at the point of delivery is greater than the. The if is engine condition, physically communicated to the pump. Buick nailhead hilborn mechanical fuel injection 8 stack,last one, all new.
Contact us for a free cd catalog and price list to be mailed out or view flip catalog view pdf catalog view pdf current price list leader in the pioneering and implementation of fuel injection systems mechanical fuel injection 866 4646553 electronic fuel injection 215 6434607. Rochester fuel injection system tech articles vette magazine. The fuel flow for the db4 fourplunger pump is the same with the exception of the charging of two additional plungers. Ultimate mfi resources thread pelican parts forums.
Mechanical fuel injection page 2 alkydigger technical info. Bob szabos background as an accomplished engineer has enabled him to be one on one with many of the manufacturers of mechanical fuel injection systems and race engine builders. Would you like to find out how well your old 1959 to 1972 mechanical gasolinegas fuel injectors are working. Fuel injection pump working principle animation youtube. Setting the butterflies on 8 stack mechanical and efi injection manifolds illustration for enderle square barrel valve when using. While early porsche 911s used carburettors to regulate the air fuel mixture, changing emissions regulations at the end of the 1960s and the quest for greater power soon saw zuffenhausen turn to mechanical fuel injection on its iconic rearengined sports car. Explore electronic fuel injection with free download of seminar report and ppt in pdf and doc format. Alcohol mechanical fuel injection calculations pontiac. Volkswagen golf 2015 repair manual heating, ventilation and air conditioning. Oct 07, 2015 youve built a mechanical fuel injection pump, from the days before digital engines. It does this by constantly monitoring air fuel ratio through the use of a wide band o2 sensor.
Fuel delivery system certain mechanical fuel injection systems also utilize a mechanical fuel pump, typically some early gasoline fuel injection systems. Today, it has been superseded by gasoline injection systems which thanks to. This bypass controls the fuel mixture at full throttle and has little or no effect on the idle. Youve built a mechanical fuelinjection pump, from the days before digital engines. Experience has proven that distillate fuels meeting basic. Porsche 911 bosch mechanical fuel injection overview 911. The fuel passes through a water separator and secondary fuel. This type of fuel injection offers the lowest cost of any mechanical fuel injection alternative. Bob has compiled well over a thousand different equations to try and simplify the mysteries of fuel injection and to be able to compile the tables and graphs in this.
If you have insight, pictures, parts, data, manuals, or ideas to share, feel free to email. Unlike later fuel injection systems that used electronics, this one is based on purely mechanical principles. Mar 26, 2012 friends, one of the things that we have been testing lately is a mechanical fuel injection system from precision, makers of certified aircraft fuel systems. For most mechanical fuel injected mercedes gas engines 1959 to 1972. See the 1958 corvette that was gms first car with fuel. American bosch fuel injections, equipment and service 74 pages 1972. We dedicate ourselves in providing high quality custom built pulling chassis, shafts, specialty cnc products, and some custom machining. Figure 564 illustrates the fuel flow for a stanadyne db2 twoplunger distributor pump. 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. I have never tried it but i have thought with a little ingenutity two vw bunny 4 cyl systems could be made to work on a v8 which is two 4 cylinder engines anyway. Hilborn fuel injection has been a leader in the design and implementation of mechanical fuel injection for over 65 years.
The pump is reversible so if the dowel pin in the front cover is on the side that says 150 it is a belt drive pump, if not, then take the cover off, remove the pin, can be a bitch and move it to the hole on the opposite side of the pump. Nov 26, 2003 other than the electric fuel pump despite its tronic name it is totally mechanical and probably the pinnicle of success of mech fuel injection for gasoline engines. Mechanical fuel injection is holding its own against efi and racing carbs in racing. So, as the piston and plunger move downward inside the injector, fuel in the bottom chamber of the injector is being squeezed. Leader in the pioneering and implementation of fuel injection systems mechanical fuel injection 866 4646553 electronic fuel injection 215 6434607 home about hilborn. The following two companion manuals cover fuel system repair, operation and diagnostics.
Each fuel injector is furnished with a set of bypass pills. Nov 25, 2018 mechanical fuel injection is holding its own against efi and racing carbs in racing. It is very hard to get the hook to set, thanks to gravity. Fuel injection pump that can be rebuilt or repaired when needed. The intensifier piston is seven times greater than the surface area of the plunger. The air meter measures airflow into the engine and manages thermostatic warmup enrichment, fuel shutoff on overrun, and idle settings. The injection pump assembly incorporates mechanical. Cav dpa injector pump no fuel to injectors after bleeding i just repaired my cav dpa top cover fuel leak while it remained aboard the tractor. Project 30, page 91, mechanical fuel injection troubleshooting and adjustment, 101 projects for your porsche 911. Porsche used various types of mfi on factory racing cars from 67 to 84.
Jul 31, 2018 this type of fuel injection offers the lowest cost of any mechanical fuel injection alternative. Some, however, use a vane type fuel pump mounted directly to the injection pump fuel distributor assembly. Once broken down into its various subsystems, the rochester mechanical fuel injection system reveals its mysteries in an understandable way. May 07, 2003 once broken down into its various subsystems, the rochester mechanical fuel injection system reveals its mysteries in an understandable way. The following table is a guide to the fuel paths marked by each blue arrow in figure 6. The rochester ramjet is an automotive fuel injection system developed by the rochester products division of general motors and first offered as a highperformance option on the corvette and gm passenger cars in 1957. The bypass pill is located under the 916 hex plug on the metering valve. Slide type fuel injector working principal youtube.
Ctm170level 4 electronic fuel systems with bosch vp44 pump ctm207mechanical fuel systems ctm207 covers the fuel systems formerly included in ctm104. The invention of mechanical injection for gasolinefueled aviation engines was by the french inventor of the v8 engine configuration, leon levavasseur in 1902. Other manuals will be added in the future to provide additional information on electronic fuel. Jan 27, 2012 mechanical fuel injection is used to indicate the metering functions of the fuel injection system. Read online 3406b caterpillar mechanical fuel injector repair manual book pdf free download link book now. It will calculate jetting and nozzles in mechanical fuel injection engines in the pits or staging lanes for weather or tuning adjustments. Electronic fuel injection seminar report, ppt, pdf for. Inline heavy duty p 7100 fuel injection pump new oemquality fuel injection lines oemquality components.
Mx240 mx255 mx270 mx285 tg255 tg285 threeyear warranty. We used procalc to set up nozzles and jetting for 5 different fuel combinations, all confirmed in only 15 drag race test runs. Mechanical fuel injector animation this is a improvised and corrected version of the fuel injector. Also explore the seminar topics paper on electronic fuel injection with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year. Mechanical fuel injection systems hilborn fuel injection. Setups can range from simple singlenozzle systems costing a few hundred dollars through to systems costing tens of thousands of dollars. Volkswagen golf 2015, golf variant 2015 repair manual direct shift gearbox. This lowcost dragster was put together in the 90s by bill rutledge and richard buzdas. Also explore the seminar topics paper on electronic fuel injection with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. The robert bosch model pes 6mw injection pump is used on the international dt466c diesel engine. Rochester fuel injection system tech articles vette. When the f uel oil enters the cylinder, it will ignite because of the high temperatures. Our staff has over 75 combined years of mechanical injection experience, ranging from a basic 1 cylinder application to turbo charged v12 monsters, so we can design the ideal system for your racing application. Blown gas, blown e85 or unblown any fuel not blown alcohol changing the rotation of an enderle sg spur gear fuel pump.
We can build a custom injection to meet your specific needs as well. Really deals with the bosch kjetronic system but still a pretty good read. It was used on the 911s and 911e from 69 to 73 as well as the 73 carrera rs. The aim of all types of fuel injections systems is to achieve a delivery of the exact air fuel mix into the combustion engine. Annular groove is a machined recess forming a ring on the pumping plunger. Bosch mechanical fuel injection is a splendid, if not inexpensive, performance induction system. Precision has developed a single point fuel injection system that is entirely mechanical for engines in the corvairs power category. More than fiveandahalf decades have passed since the first mechanical fuel injection system appeared on the c1 corvette and fullsize chevy sedans, but its remarkable how well the system worked. As shown in the diagram, the transfer pump pulls fuel from the fuel tank.
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