K Jetronic Fuel Distributor Adjustment This channel teaches yo

K Jetronic Fuel Distributor Adjustment This channel teaches you how to diagnose and repair the CIS-E (KE-Jetronic) system on Mercedes M102, M103, M104, M116, and M117 engines Playing with your K-Jetronic Warm Up Regulator, or WUR, I wouldn't wan't to try to do the rebuild with out these guides, Mercedes Classics with Pierre Hedary • 5, Check height, centering and for binding, All these are supplied with your reconditioned part from us, Hi, Question for the group: I messed with the Mercedes K Jetronic- CO/mixture screw adjustment(air-fuel ratio adjustment) air flow meter and now the engine doesn't start, You have replaced the fuel pump, plugs, wires, cap and even had the fuel distributor or warm I'm not a mechanic and rebuilt my fuel distributor by reading the online instructions and watching the linked Youtube videos, Popular with Porsche, Mercedes and VW/Audi in the 80s K-Jetronic fuel systems have an electric safety The ToolListandComponent Locationsections will circuit which prevents the electric fuel pump andhelp identify the necessary tools and help locate other electrical devices from operating unless the vehicle components to be tested, Bosch K-Jetronic Continuous Injection System Mechanical Fuel Injection Overview 15, Suitable for All Bosch K-Jetronic Fuel Distributors, The major components are a fuel distributor, a warmup regulator, a throttle body, injectors, in conjunction with the correct fuel pump, To perform the K-Jet fuel pressure test the first step is to connect the gauge set, Using the Lambda sensor together with additional equipment for the Lambda closed-loop control facility, the K-Jetronic can already comply today with the exhaust-gas regu- lations of tomorrow, See full list on tasteslikepetrol, This success is a result of the advantages which fuel injection can offer when considering today's demands for economy, performance, and cleaner exhausts, How To Adjust Open Loop Fuel Mixture for Porsche 911 Bosch CIS K-Jetronic Fuel Injection Joe Engineer 3, The K-jetronic system belongs to the group of CIS injection system which stands for continuous injection system, Dec 14, 2022 · How do you know you are losing pressure from the FD through the return line? As others have noted, resting pressure loss is from either: Pressure control valve Fuel accumulator diaphragm Fuel pump check valve Cold start injector Fuel injectors Fuel distributor To answer your question, removal and replacement of the pressure control valve is straightforward, I did it recently, The Control Pressure Regulator controls a feedback loop of pressure to the center of the fuel distributor, (1981-83 Engine No 498898, 498966, 498967, 499800, 499801), Comparative Test) No, No Basic idle and/or CO adjustment incorrect (see Idle and , 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, If the fuel flow is OK, reconnect the return line and proceed with testing the System and Control pressures, 8 Repair Kit for a Six Cylinder Alloy Bosch KE-Jetronic Fuel Distributor The kit contains: One diaphragm made with advanced technology; the material has a much higher temperature and chemical resistance, Aug 11, 2012 · If it does not pass, check for a defective fuel pump check valve, defective (or clogged) fuel distributor, faulty system pressure regulator, and leaking cold start injector, The fuel distributor rebuild went well, Before proceeding please read my disclaimer page, Sep 15, 2012 · Everyhing about Bosch D-Jetronic (some wrongly write D-Jetronik) fuel injection system equiped cars of all manufacturers from A as in auxiliary air valve via E las in ECU and M as in MAP sensor to Z as in zero adjustment, 6 The fuel filter 15, A massive butterfly valve assembly called the “airflow meter unit” measures the amount of total intake volume, which physically controls a plunger mechanism inside the distributor, controlling fuel injection flow, Raising this pressure gives you more overall fuel because the system is running higher pressure, Repair Kit for Bosch System-Pressure Regulators, and then backing off by 1/2 to 3/4 of a turn, However, as i cant see into the metering unit i dont know what tool i need to be using?? haynes basic diagram makes it look like a flat blade Fix your KE-Jetronic Mercedes the right way — your way, As most of the time the only part that has failed in the Mercedes fuel injection system is the diaphragm, Rebuilding a Cast Iron K-Jetronic Fuel Distributor It makes very little difference whether it is a 4, 6 or 8 cylinder fuel distributor, The main difference between the two types is that on the KE-Jetronic system all mixture corrections are controlled electronically by an electromagnetic pressure actuator incorporated in the fuel distributor, Its either too rich or K-Jetronic diagram 1 - mixture regulator 1a - air quantity meter 1b - fuel dispenser 1c - CO adjustment screw 2 - gas tank 3 - Electric fuel pump 4 - fuel pressure accumulator 5 - fuel filter 6 - pressure regulator in the system ba - valve 7 - injection valve 8 - idle speed adjusting screw 9 - battery 10 - ignition switch 11 - fuel pump relay 12 - ignition distributor 13 - cold start valve 14 Bosch K-jetronic - Fuel Filters - What, Where and Why Ukraine Waited for Russian $250M Warplane to Refuel — Then BLEW It Up On K-Jet fuel distributors there is usually a flexible hose about 30cm (12”) long from the 17mm fuel distributor fitting beside the pressure regulator, which joins a solid line back to the tank, 2,036 likes · 28 talking about this · 5 were here, Update, the hot start issue was solved by a new fuel accumulator, x6 Copper washers (CU004A), Jul 29, 2020 · Frequency Valve Next is the frequency valve, Before you make this modification, you should be very familiar with the function of the WUR and how its pressure adjustments affect the performance of the K-Jetronic fuel injection systems, , 11K subscribers Subscribed May 22, 2012 · Your CO level is very low indicating a lean running condition, I found a great source of information on KE-Jetronic on YouTube posted by Ukrainian mechanic with user name v_i_t_a_l_y, 1K views 1 year ago Bosch Classic K- and KE-Jetronic Gasoline System overview of K-Jetronic with A-control Injection 10 Systems Updraft air-flow sensor of K-Jetronic Air funnel Sensor plate Relief cross-section Mixture adjusting screw Control pressure (system-pressure regulator) Fuel inlet Metered quantity of fuel Control plunger Barrel with metering slits Fuel distributor Pivot Set of levers Leaf spring K-Jetronic Fuel Distributor Adjustment, Bosch K-Jetronic Fuel Injection Systems Part 2Bosch K-Jetronic Fuel Injection Part 2 Fuel Management Mixture control unit The task of fuel management is to meter, or allocate, the correct quantity of fuel which corresponds to the amount of air drawn in by the engine, It also includes diagrams, component locations, and parts lists, Nov 20, 2019 · Testing fuel pressures to fix the lean running condition of my 560SEC ECE, 0 924, k-jet, Primary focus is to help you get a non-running 928 to start and idle again, especially when it has sat for a long time, PDF BOSCH K-JETRONIC Fuel Distributors Warm Up Regulators Fuel Pumps Injectors Auxiliary Air Valves Accumulators May 8, 2020 · K-jet fuel distributor mixture adjustment screw covering bolt issue Discussion in ' Boxers/TR/M ' started by dradambbb, May 8, 2020, The two halves of the distributor went together OK, any K-Jet pervs here? I read somewhere online that setting the fuel mixture can be done by adjusting the fuel mixture adjustment to the right until the engine bogs, You don't want to disturb these -- if your fuel distributor is not working correctly (i, 1 Introduction and operational overview 15, How Important and How to Fix? Feb 3, 2020 · Fuel Distributor The next major component is the Fuel Distributor, which is also called a Metering Head, You say it is starting but you can just not get it to idle smoothly, Let's say you just acquired an old gas engined Mercedes and you just can not get it to run right and or even get it to start, 3)Restricted injectors Jun 12, 2009 · , Specific compo-engine is running or being started, Six O-rings for metering slot body (Viton o-rings also have much higher temperature and chemical resistance), 1, Proper sealing of the halves and adjustment of components The fuel distributor meters the quantity of fuel to be delivered and distributes it to each injector, Aug 20, 2015 · This should get the adjustment roughly in the correct ball park, but further fine tuning will be required as follows, This user manual provides detailed information on the Bosch K-Jetronic and KE-Jetronic mechanical fuel injection systems, including removal and refitting procedures for various components, The electric nent removal and installation information can be Repairing the CIS Jetronic Alloy adjustable Bosch Fuel distributor If your car has rough idle, low power, high MPG, inflexible acceleration, or too long of a cranking time with a hot engine, Continuing or articles on fuel injection systems, in this article we discuss tuning and adjusting the Continuous Injection System (CIS) used on 911 models from 1973-83, This channel teaches you how to diagnose and repair the CIS-E (KE-Jetronic) system on Mercedes M102, M103, M104, M116, and M117 engines Nov 17, 2021 · Hi there, We also recondition D-Jet MPS, Auxiliary air slides, auxiliary air valves and mechanical petrol injection systems, If this is defective the symptoms will be Fix your KE-Jetronic Mercedes the right way — your way, ), but I am having problems with the initial setting on the fuel distributor, That is what's in the fuel distributor, Dec 23, 2023 · K- and KE-Jetronic, however, utilize a fuel distributor to divide and control the flow of fuel to the injectors, Feedback through shifter is a bad missclean spark plugs too, Aug 12, 2021 · K-jet metering head strip down and rebuild thread Discussion in ' K-Jetronic OEM injection ' started by Cressa, Jan 14, 2023, 4 The fuel pump relay 15, 2: Airflow sensor adjusted incorrectly, net i am explaining on how Did Mike’s cheap Benz survive the fire? Will a rebuilt fuel distributow save the day and get this car started??A huge thanks to @AutoAuctionRebuilds for hel ㉦Mercedes Ke-Jetronic㉦ - Sensor plate height adjustment#viralvideo In this video find out how to adjust the sensor plate if you experienced detonations which Feb 21, 2022 · I also found the Mercedes-Benz Continuous Injection System (CIS) Diagnosis & Adjustment – (1976-1979) Manual very useful, as well as the M110 engine workshop manual, Under that is the mixture screw, I made some notes from this video in preparation of the day that I obtain a KE Jetronic Fuel Pressure hose apparatus, It i Repair kit for a Six Cylinder Alloy Bosch K-Jetronic Fuel Distributor The kit contains: One diaphragm made with advanced technology; the material has a much higher temperature and chemical resistance Six O-rings for metering slot body (Viton o-rings also have much higher temperature and chemical resistance) Six O-ring for flow adjustable screws, It covers systems used in XR3i and RS Turbo models, First, a working O2 (oxygen) sensor must be present, The fuel distributor allocates this fuel to the injection valves in the cylinder intake tubes, Oct 22, 2012 · Hi Again all, Finishing up on my fuel system tweaking, tomorrow I'm going to make final touches on the idle mixture adjustment, 7-liter engines from 1973, *, pdf file) Mar 4, 2011 · The adjustment is located on the main fuel distributor body and is fairly easy to access for both turbo and non-turbo cars, There is not a fuel pressure regulator on K Jetronic but rather a system pressure regulator that is located in the lower chamber of your fuel distributor, (to clarify, this is also referred to as the 'co' adjustment that is Dec 4, 2025 · System pressure regulator kit for early Bosch K-Jetronic fuel distributor , Included are the regulator screw, adjusting washers, copper sealing ring and a new sealing ring for the control piston, Service manual for Bosch K-Jetronic and KE-Jetronic fuel injection systems, 1 INOVA HIGHTECH Ltd, 3 The fuel pump 15,  Scope of delivery see pictures (spring and control piston are not included), K-jet mechanical fuel injection depends on continuous regulation and variation of fuel pressure delivered to the injectors, The M-B fuel injection system you’re most likely to find in your workbay today, however, is one generation or another of the Bosch K Comprehensive rebuild kit for 4-cylinder alloy KE-Jetronic fuel distributors, ensuring optimal performance and compatibility with various Bosch models, The technical instruction bookletFuel Injection- Con-tinuous Injection System (CIS) at the back of the manual describes the components and operation of the K-Jetroni Always use new gaskets, seals and 0-rings installing components or fuel lines, i am explaining on how to set plate clearance in relation to fuel, From the end of 1979, this system was modified by adding a lambda control system (KA-jetronic), I'm not a mechanic and rebuilt my fuel distributor by reading the online instructions and watching the linked Youtube videos, An electrically driven fuel pump delivers the fuel to the fuel distributor via a fuel accumulator and a filter, The only electronic variables on a warmed K-Jet are lambda probe (if buzzingit's good) and TPS (only for WOT), Workshop manual for K-Jetronic fuel injection system providing detailed instructions for maintenance, troubleshooting, and repair, 4K views 13 replies 5 participants last post by jcb2 Mar 26, 2020 J Testing Injectors) 00 Unequal fuel delivery between cylinders (see , This manual provides detailed instructions on testing, troubleshooting, adjusting, and repairing the K-Jetronic system, The pressure that is within the system between the fuel pump and the metering head is controlled by the primary pressure regulator, situated within the metering head, How Verify of Tools for CIS-Jetronic Professionally clean, test, adjust and verify all components of Bosch K-Jetronic (1973-1994), K-Jetronic (Lambda), and KE-Jetronic (1985-1993) Fuel System, Lowering this pressure gives the motor a richer fuel , Delivery with Montage and Adjustment Instructions, PN 3523639, Reconditioning K-Jetronic Fuel Distributors and Warm-up Regulators & KE-Jetronic Fuel Distributors since 1993 Bosch Fuel Injection Systems - Bosch K-JetronicBosch 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, The electric nent removal and installation information can be Feb 18, 2021 · For some time I have wondered how to check Fuel Pressure on my 560SL, 45K subscribers Subscribed Mercedes Ke Jetronic- CO/mixture screw adjustment (air-fuel ratio adjustment) Sensor plate adjustment ㉦Mercedes KE-Jetronic㉦ - 📚🗒🩺 How to achieve steady idle 🩺🗒📚 Oct 24, 2021 · Investigating lumpy idle and hot start issues, Select your version as Seen on the Picture, The important difference is whether it is an adjustable or non-adjustable type, and it just adds a few steps, Apr 30, 2023 · How To Setup Initial Fuel Mixture for Porsche 911 Bosch CIS K-Jetronic Fuel Injection Joe Engineer 2, Base nut adjustment of KE fuel distributors, Hello this should be running the mechanical fuel injection system Bosch K-jetronic there's a small screw on the side of teh fuel meter / distribution unit to adjust the fuel mix so its worth turning this out a 1/4 turn to see if this helps its inside the metal tower as shown here, prise out the little bung and use an allen key to adjust Dec 19, 2003 · K-Jet Control Pressure Too High Discussion in ' K-Jetronic OEM injection ' started by Pete, Jul 29, 2017, I adjust the idle mixture on my 1988 VW Cabriolet which has CIS fuel injection, Details Written by: Dr-DJet Also available: Created: 15 September 2012 Last Feb 21, 2017 · Also I have seen the Volvo B18 B20 Weber Conversion w/Manifold kits will they bolt on to my head ?? I am fed up with this K-Jetronic Fuel System, Why do we have to trash malfunctioning WURs? Why do we have to pay Mar 7, 2025 · This kit will service the following cast iron Fuel Distributors that contain a stainless steel Diaphragm, On Ebay there is one for Apr 13, 2008 · Warm up regulator (WUR) Calibration / Control pressure calibration or adjustment How to calibrate the k-jetronic warm up regulator Applies to: Most K-jetronic mercedes engines, the type without electronic lambda controls, Further the correct adjustment of the plate Feb 3, 2020 · This is a test of the fuel flow from the tank, to the regulator, so a low reading should be something before the fuel distributor, 03K subscribers 673 K-Jetronic fuel systems have an electric safety The ToolListandComponent Locationsections will circuit which prevents the electric fuel pump andhelp identify the necessary tools and help locate other electrical devices from operating unless the vehicle components to be tested, The K-jet system doesn’t have the test port like KE-Jet, 5 to 1983 and in the Turbo from 1975 to the early ’90s, Remove the boot and loosen the center line on fuel distributor to relieve control pressure, Ran across this exceptional YouTube video by Pierre Hedary on how to do this, biz Turn the fuel distributor up-side down and remove the nut in the centre, the barrel retaining nut, also the barrel retaining nut washer, This channel teaches you how to diagnose and repair the CIS-E (KE-Jetronic) system on Mercedes M102, M103, M104, M116, and M117 engines Nov 26, 2018 · Good morning all - I have been working to get my 79 450SL with CIS K-Jetronic started after a couple years in storage, Bosch KE-Jetronic Continuous Injection System Mechanical Fuel Injection Overview Part 1of 6 FUEL INJECTION SYSTEM - BOSCH CIS-E 1986 Fuel Systems MERCEDES-BENZ CIS-E ELECTRONIC CONTROL SYSTEM DESCRIPTION The fuel injection system used on all Mercedes-Benz gasoline engine vehicles uses Aug 22, 2005 · Worn distributor caps,spark plugs and plug wires can seriously impact the performance of the K Jetronic fuel system, To solve the problem, I had to perform a KE Jetronic EHA Adjustment, Nov 9, 2025 · Inclusive new distance slices for adjusting the system pressure, Residual system pressure checks may help identify a check valve, accumulator, or injector fault, This is an electrically operated valve that bleeds off pressure in the lower chamber of the fuel distributor, On KE-Jet fuel distributors the flexible hose goes from the separate fuel pressure regulator to the solid fuel return line, Dec 10, 2021 · is it K or KE jetronic ? 8v, 16V ? turning adjusting screws clockwise on K-jetronic fuel distributor adds the fuel, while on KE-jetronic with adjusting screws in bottom part of distibutor clockwise turning removes fuel, This also contains the Main Fuel Pressure Regulator, Under left dash, The document provides instructions for adjusting the idle mixture on a Bosch KE3-Jetronic fuel injection system used on Mercedes vehicles from 1988-1991, The system is completely mechanical, The tools and supplies offered in this kit will allow you to modify your warm-up regulator at home and in your garage, Sep 29, 2023 · DIY Videos: How To Adjust Fuel Mixture on Porsche 911 Bosch CIS K-Jetronic Fuel Injection Here is a pair of videos explaining how to adjust your fuel mixture on nearly every normally aspirated Porsche 911 running CIS, Bosch K-Jetronic Fuel Distributor Rebuild // 1985 Porsche 924 Restoration Project // Part 17 76-85 Bosch K-Jetronic Warm Up Regulator, Jan 30, 2006 · im struggling to adjust the idle mixture on my 2, Today, it has been superseded by gasoline injection systems which thanks to electronics have been vastly im-proved and expanded in their func-tions, Thanks for any advice, Air-flow Jan 30, 2023 · Mercedes Bosch K KE Jetronic ultra high precision Calibration Fixture to adjust Fuel Distributor P, 5 The accumulator 15, You do not need any special tools to rebuild these fuel distributors & instructions are available from a link provided, INTRODUCTION from other fuel injection systems, Mercedes-Benz cars have a long history with various gasoline injection systems, including exotic versions as the Diesel-like direct injection used in the Gullwing SL of the early 1950’s, spraying fuel right into the combustion chambers themselves, 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 K-Jetronic fuel injection system training course, It describes removing an anti-tamper device to access the adjusting screw, and using a scan tool connected to the X11 diagnostic port to monitor fuel mixture levels using duty cycle readings while adjusting the screw, 7 Systems pressure 15, In other words, fuel is metered in proportion to the incoming air flow, Place a rag May 28, 2013 · Here we see the throttle body and fuel distributor, The electric nent removal and installation information can be Mercedes Benz Bosch k jetronic manual, Bosch CIS fuel injection manual, Video Instructions, Video Instructions how to repair and adjust Bosch Fuel Distributor 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 6 page procedure is designed to guide you through setting a baseline fuel tune on your early 928 with Bosch K-Jetronic CIS, The K I have been working in the motor trade for almost 10 years years now, and have been working with K-Jetronic for 8 of them, K-JETRONIC FUEL PUMP RELAY 15 30 8 140 079, The cap at the top of it is actually an extremely thin piece of metal, A special ceramic material that senses the difference between the O2 in the exhaust (or lack thereof) and the ambient O2 and produces a voltage that is sent to the Lambda Control Unit to adjust the CO in a closed loop system, 3, Fuel management carried out by the mixture control unit, Oct 25, 2008 · Aside from simply adjusting the mixture screw you can adjust your control pressure, shim system pressure higher, remove injector port filters, run a bosch "984" fuel pump, run MB 6, Please check out this page for other models that are compatible with this kit, The little metal tower at the base of the fuel distributor covers the adjustment screw, 9 injectors that allow higher system pressure and will thus spray more fuel, even individually adjust fuel flow settings for each injector port (not recommended), If you know Russian you can watch it for yourself, This comprises the air-flow sensor and the fuel distributor, After you drill through this, reassemble Mar 10, 2017 · My local mercedes mechanic has serviced the unit and said that with engine not running no fuel should come out of the ports ( ignition on) When the The document provides step-by-step instructions for rebuilding a cast iron K-Jetronic fuel distributor, I've removed the adjuster screw covers, but have not touched 8 Cylinder Bosch KE-Jetronic Fuel Distributor" This kit brought my 560sec bact to life, Jan 23, 2020 · K-Jetronic fuel distributor Jump to Latest 6, If you drill through it slowly and carefully, you'll find a small metal disk and a couple of pieces of felt, Fuel injection system The KE2-Jetronic fuel injection system is fitted to turbocharged engines, This channel teaches you how to diagnose and repair the CIS-E (KE-Jetronic) system on Mercedes M102, M103, M104, M116, and M117 engines Apr 25, 2004 · My son's '85 Saab has the mechanical Bosch K-Jetronic fuel injection system, also known as "Constant Injection System" for the way the fuel is continuously recirculated from the tank to the fuel distributor & back, The goal is to set the Customer: Where is the fuel and air mixture adjustment for a k-jetronic 911 sc 1979 3 litre unit and what tuning/improvement can I make to ensure optimum performance and reliability? Initially trading under the name ‘Agape Autos’, K-Jet Specialists has been reconditioning K-Jetronic Fuel Distributors and Warm-up Regulators, and KE-Jetronic Fuel Distributors since 1993, 08K subscribers Subscribed Rebuild manuals K-Jet Specialists Rebuild manuals Double Diaphragm WUR rebuild Download Rebuilding a Cast Iron K-Jetronic Fuel Distributor Download Basic-WUR-Set-Up Download 005 Basic TURBO WUR Set-Up Download 001-Refitting-Fuel-Distributors Download Tutorial of the fuel divider also commonly referred to as fuel divider and the ratio of the air flow metering unit for all Mercedes Benz, Porsche, BMW, Volvo Repair kit for a five cylinder Cast Iron (adjustable) Bosch K-Jetronic Fuel Distributor The kit contains: One stainless steel diaphragm made with advanced technology Six O-rings for metering slot body (Viton o-rings have much higher temperature and chemical resistance) Oct 13, 2025 · The former is often referred to as K-basic, while the latter is often referred to as K-lambda (or Kλ-Jetronic, λ being the Greek letter/symbol for lambda) to differentiate the two systems, May 26, 2022 · Bringing my 1988 300SE back to life, The positions of all the plates and springs in the fuel distributor I am explaining on how to set plate clearance in relation to fuel distributor plunger so car starts every time and has a baseline mixture set point, The only K-Jet pressure adjustment is at WUR, This means that the fuel is continuously injected into the inlet manifold, 0 new watchers per day, 2,445 days for sale on eBay, Nov 6, 2010 · , from tasteslikepetrol, pdf file) Detailed instructions on how to repair the Fuel Distributor, which include replacing all parts (*, The Injection guy, whose name is Simone Lanfranchini from Novara, Italy, serviced the Fuel distributor, the Warm Up Regulator (WUR) and the Auxiliary Air Valve (AAV), Otherwise here are the main points of rebuilding and adjusting the FD 1, net Gasoline Fuel-Injection System K-Jetronic (Technical Instruction, CO Adjustment) Throttle plate does not open completely 10 ROBERT BOSCH Porsche K-Jetronic VACUUM LEAKS There must be no air leaks in the air intake system , It trys to fire up but acts like it is starving for fuel, When and if I get it started it runs fantastic, Fix your KE-Jetronic Mercedes the right way — your way, Note: The following information is for educational use only, K-Jetronic is a mechanical injection system because fuel is metered by the mechanical link between the fuel distributor and airflow sensor plate, which are linked together in one housing, This a classic rebuild of the infamous CIS fuel distributor, all explained in the video straight forward process, ex Oct 8, 2019 · Whilst I've got it out of the car I thought I'd give you a quick look at a fuel distributor from a Bosch KE Jetronic or CIS injection system, It is essentially responsible for the “fine-tuning” of the fuel mixture in the Lambda Aug 22, 2005 · psi, Saved a lot of $$$ by replacing my self" " Makes the job easier, Quick question about the adjustable screws (part 730ish six of them) that move the six sleeves controlling the flow rate up and down, Set the mixture at idle RPM with the allen key adjustment on the fuel distributor as you've suggested (turning to right makes it rich), you may have to go back and adjust idle air to get idle RPM where it's supposed to be, e Sep 20, 2021 · Finally I found a true expert of those K-Jetronic items and I gave back Toni his Bosch Fuel distributor: now the car works better than new, The longer the valve stays open, the larger its duty cycle and the more fuel pressure is reduced, also reducing the fuel flowing through the injectors, 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 turn the mixture adjustment screw clockwise until the port just starts to Tutorial of the internal function of the Bi-Metal and the effects of aging and metal fatigue and which ways the Bi-Metal can be adjusted to restore proper fuel pressure for cold start and hot start, Because K-Jet is a continuous injection system, fuel is built up at the intake valve until the valve opens allowing fuel to enter the combustion chamber, Mar 6, 2022 · Bosch K-Jetronic Fuel Distributor Rebuild // 1985 Porsche 924 Restoration Project // Part 17 Restoration Apprentice 5, May 18, 2023 · The lambda-sensor (only on KA-Jetronic) generates a signal that the control unit uses to adjust the fuel mixture, Now, to ENRICH the fuel Mar 7, 2019 · Alright, guys, I jumped the fuel Pressures System Pressure On the Bosch K-jet systems, this pressure can be measured at the top of the fuel distributor by connecting a continuous injection system pressure gauge from the top fitting in the fuel distributor (this is the horizontal one) to the warm-up regulator, Oct 26, 2014 · The system consists of four basic sections: 1) The K-Jetronic mechanical fuel injection system (similar to that used on the 1977, 78m and 79 450SL) 2) The "Frequency Valve" addition, which is essentially a modified ELECTRIC FUEL INJECTOR inserted into one of the lines of the K-Jetronic fuel distributor, Get Yours! May 18, 2012 · Check vacuum line to ignition and fuel pump operation, This comprehensive guide offers expert insights, actionable repair advice, troubleshooting tips, and FAQs to help you master this classic automotive technology, It then details disassembling the distributor and cleaning each component using various tools and techniques, Included are Shims for Adjusting the System Pressure, The pressure actuator is directly 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, Line (or system) pressure readings will help define a problem with the fuel delivery system such as the pumps and filter, The fuel distributor supplies fuel to the fuel injector, You'll need to get out your electronic mulitmeter with a 'Dwell' function, This is going to debunk the myth of untouchable fuel distributor, How To Adjust Closed Loop Fuel Mixture for Porsche 911 Bosch CIS K-Jetronic Fuel Injection Joe Engineer 3, www, Since this point, the K-Jetronic has now become particularly impor-tant 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, 2)Control pressure too high High control pressure will limit the travel of the control plunger,limiting the amount of fuel delivery rate,thus causing the engine to run lean and power suffers, if you have an adjustable type fuel distributor, remove the caps for the adjusters, next unscrew the adjusters,, On my car idle air is adjusted on the throttle body, ^pretty much what he said: 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, Simply fantastic! Whenever you refit a fuel distributor to the air flap, you need to install a new ‘O’ ring under the fuel distributor and also new copper washers, Looks like someone at some point has already adjusted this as the blockout slug has already been removed and the 3mm allen nut is visible, It has no fuel rail, but instead relies on the fuel distibutor (about the size & Hey guys and welcome back to the channel, our job is to adjust the mixture screw on the fuel distributor such that the amount of “lean” or “rich” due to various, There are adjustments to each CIS injector line (should remain Feb 16, 2004 · Can anyone advise on the location- if it is present of the adjustment screw on either the flow meter or the fuel distributor that allows mechanicaly #youtube #k-jetronic #howto Welcome back, this video covers a few common problems that I have encountered over the years and have been asked about numerous t Oct 12, 2007 · I believe those are actually "cover" screws and the adjustment screw for each port lies underneath, but these are not adjusted to set each cylinder's mixture individually -- they are set during the assembly of the fuel distributor to give equal fuel rate delivery from each port at any plunger position, Fuel Pump 17 Cold Start System 18 Warm-Up Regulator 19 System Pressure 22 Leakage Test 23 Testing Injectors 23 Comparative Test 24 Idle Speed and CO Adjustment 26 Mounting Pressure Tester 30 Component Repa