Fuel injection pump calibration procedure

Fuel injection pump calibration procedure. Typically, the bulk of pumps came down the line with a #4 or #5 resistor. e. Allow the pump to run until the lines are flushed and filled with liquid. I saw them set up a C414 new fuel pump in about 45 minutes with this set up on the wing! • P0172: Fuel System Rich • P026D: Injection Quantity Too High • P0300: Engine Misfire Detected • P2A00: HO2S Performance Sensor 1 Correction If you encounter such a situation,DO NOTreplace the fuel system as described in Service Bulletin #16-NA-102. YOU CANNOT RESET TIMING CORRECTLY WITHO operate slightly differently. Since each pump will be a little different due to production tolerance, calibration resistors were needed. experienced qualified automotive technician. 3379133, is a listing of basic engine parts and timing specifications which are necessary to produce a given engine performance. In order to initiate the relearn: 1. Pressure source is test dependent as described in 4. Figure 1. Apr 16, 1999 · J1668_201605. Disassemble the pump for cleaning. The crankshaft position sensor has been replaced. 7. Shut-off Stop Screw 5. The correct setting and adjustment of fuel injection pumps requires standardized testing conditions. VRV Quick Installation Guide: (Quick Instructions are in dark green text) If you want to quickly install a VRV (Vacuum Regulator Valve), read the following paragraphs. 6. This SAE Standard summarizes the design and operating parameters for test benches so that, using certain information supplied by the pump manufacturer, the pump test schedule, and certain information supplied by the test bench Sep 24, 2021 · Turn the handle on the calibration valve so the arrow on the handle points towards the quick disconnect. Check engine Mar 9, 2021 · The injector calibration specifications and parts information are provided in Injector Specifications, Bulletin No. 72 grams/cc, ie. Bleeding is done by opening the bleeder screws. 1 ppm is possible. If mounting the pump in the tank is not an option, install the pump as close as possible to the tank. Typical test equipment recommended for measuring fuel-injection equipment cleanliness is described in Annex A. Warning: Caution must be oberved when installing any prod- line. To help you get started LOBO Jan 3, 2017 · Inline fuel injuction pump. 1. Overall dimensions: 200X90*170CM. Aug 3, 2021 · I’m looking for the Fuel Injection Pump adjustment procedure (Bosch PES 6 KL 70 B 120 R20Y) USA 1969. Reverse flow check valve. Calibration means that your fuel system, especially your injection pump, will be recalibrated back to factory specs. New and remanufactured Exchange Pumps phasing-and-calibration-fuel-injection-pump 2 Downloaded from gws. Extends the lifetime of the test rig. Read more. The one you're interested in for fuel system adjustments is Continental Publication M-0, STANDARD PRACTICE FOR SPARK IGNITED ENGINES. 8. Align the clamp over the bolt hole, install the new bolt into fuel injector clamp and snug until the fuel injector fully seats, then release the fuel injector bolt. 4 - 0. Apr 16, 1999 · J1668_199904. FUEL INJECTION PUMP OPERATION 1. The fuel flow rate can be calculated from the weight delivered divided by the time, ie. Hook up your scan tool. This is the guiding principle document for the engine fuel flow set up. In 4. State-level inspectors are tasked with regularly inspecting retail establishments to make sure laws and regulations regarding weight and measures are followed. A fuel injection system must increase the pressure of the fuel to overcome compression pressure and to ensure proper dispersion of the fuel injected into the combustion space. Fuel Injection System (fuel injection pump & nozzle ) 5. Loosen bolt (26) with 1S9836 Wrench (8) or 5P4206 Wrench. ISO/TC 22/SC 41. 4 L and 3. Surges at Idle or Hi-Idle . Following steps were performed to conduct the experiment. delivery range 400 mm 3 /stroke; b) calibrating injectors with pintle type nozzle, max. MODEL PE(S)-6 MW. The VRV installs on the driver’s side of the Injector Pump (IP) on the top of the engine. We would like to show you a description here but the site won’t allow us. 10. The CPL number stamped We are equipped with calibration stand specifically for Greaves Fuel Pump & injector calibration. Plunger 4. Transfer (supply) pump must maintain minimum specified pressure since injection pump calibration depends upon correct supply pump oil pressure. Calibration and phasing. Proper dispersion is essential if the fuel is to mix thoroughly with the air and burn efficiently. - Free download as PDF File (. The Bacharach Specialist 9000 Diesel Fuel Injection Pump Calibrating Stand is designed for testing and calibrating diesel injection pumps used on engines employed in construction, automotive, industrial, farm, and similar equipment. To remove air bubble from pipe line, filters and injection pump is called bleeding. Operate the boost pump and allow a minimum of 1 gallon of fuel to flow through the system. Fuel pump code (calibration) does not match engine (CPL) build. If you want to work as a state inspector and audit gas pump calibrations, the certification process may require exams and licensing. ISO 12614-13:2014. 95. A faulty throttle body can induce several drivability issues and DTCs (diagnostic trouble codes). We recommend having this installation performed by an uct involving fuel system parts or gas tank modificaitons. Jan 3, 2017 • Download as PPTX, PDF •. This slides are about inline injection pump and calibration of the pumps . Hg) Flowmeter with three-way valve Temperature gauge (0°-250°F) Zero-backlash coupling device Calibrating nozzles and lines Orifice 13211 Sep 7, 2019 · CRD Diesel - Calibration under way on this old school Simms diesel pump off a Ford. Throttle Lever 8. Within 2-feet of sending unit is recommended. Feb 20, 2020 · Install 3P1540 Calibration Pump (1) in the place of one of the fuel injection pumps according to the procedure in Step 9. 60. No cleaning needed after test procedure. Mount the pump on the FIP test rig 5. See full list on mechcontent. The early engines ('89-'93) employed a Bosch vE mechanical rotary pump, while the later In Tuner Studio, tools->Calibrate AFR Table->EGO Sensor select “Custom Linear WB”, enter the values shown in the picture below and write changes to MegaSquirt. ala. What's inside this service repair manual: TABLE OF CONTENTS. Injector pump has been overhauled. CO-RPM levels and order of adjustment: a. org on 2022-09-20 by guest enough to act as a useful reference for professionals Basic and simulation models of common rail systems, including extensive instruction on performing simulations and analyzing key performance parameters Examination of the design and testing of 1) Reconnect the regulator and torque connections to the value specified in Table 1. system to purge. As the injector arm continues the downward stroke, the trapped fuel in the injector passages comes under extremely high pressure. Testing & Calibration of STC & Top Stop injectors also done in-workshop , our goal is to provide the most cost effective service solutions for diesel engine owners seeking diesel fuel injection system testing, repair and/or replacement. Calibration of fuel injection pumps 7. Two main types of lift pump are used to supply fuel from the tank to injection pump on the low-pressure side of fuel system. small engines operating at high speed. 5. Install a tee fitting in the fuel pump outlet line at the fuel pump outlet fitting or the metering unit inlet fitting. After the engine has shut down, allow the fuel system to 3-phase power supply: 380V/50Hz or on request. 3) Turn the regulator adjustment screw clockwise to increase or counterclockwise to decrease metered fuel pressure and fuel flow. Two (2) P/N MS51523-B4 swivel tee. a) calibrating injectors for different orifice plates, max. are three of the more known and better calibration facilities in town. Dec 1, 2020 · 5. This technique is used when a faster fuel-air mix is needed, i. We stand behind our work and offer a 100% satisfaction guarantee. The control functions for the fuel injection system are integrated in the engine control module (ECM). O-rings can be Figure 2. The following step by step adjustment and flight testing procedures should be followed: I Ground Adjustment 1. If you are not completely satisfied with our service, we will make it right. Preserves the fuel injectors. 2 describes how to make adjustments (if required). Once the fuel system is installed checking the fuel pressure on the inlet side of the Dec 16, 2003 · Central Diesel, Betan Calibration and Denso Diesel Services Q. Electronic unit pump (EUP) system is a new type fuel injection system with high injection pressure which can be applied to control fuel quantity and timing of injecting flexible. full load point – CO level – RPM. Inspect the flushed fuel. 1995 Feb 24, 2020 · More rotation of the camshaft lets the spring push the plunger down farther which opens fuel inlet (5). It is important that an equal amount of fuel is delivered to each engine cylinder and at the correct time. 2) Settings for timing device travel, supply pump pressure, full load delivery, idle speed regulation, start, full load speed regulation, and load To start the fuel injection process, the ECM sends a signal to close the poppet valve, stopping the flow of fuel through the injector body and trapping fuel in the passages leading to the injector tip. These checks involve the precise adjustment of various parameters, such as fuel-air mixture, injection timing, and pressure, to achieve the most efficient combustion. Make all the connections of fuel lines. Check for fuel supply: Ensure that there is an adequate fuel supply to the pump. Note: Use Caterpillar Electronic Technician (ET) to verify that the fuel system pressure is at zero before opening the fuel system. To assure uniform delivery, calibrating stand test nozzles should be tested for balance (equal delivery) every six months or whenever 200 pumps have been tested. With one-dimensional simulation and analysis method of internal combustion engine working process, the model of diesel engine whole machine and fuel Oct 7, 2002 · IO-360 Pumps and Aneroid Valves. This SAE Standard summarizes the design and operating parameters for test benches so that, using certain information supplied by the pump manufacturer, the pump test schedule, and certain information supplied by the test bench Fuel System, Injector Pump, Tranny, VRV. 2. The procedure may also entail replacing/cleaning your injector nozzle tips. Source: Water and Nutrient Management for Greenhouses (CCEAWG 1996 -NRAES-56) Figure 3. 99. Injector piston moves with water flow. RQV Governor Housing 9. Injection Pump Settings (Following Pump Repair) Test Equipment Digital tachometer Voltage source (variable) Pressure gauge (0-160 psi, 1 psi increments) Pressure gauge (0-30 psi) Vacuum gauge (0-30 in. May 26, 2024 · Carries out necessary repairs and calibration of the fuel injection. FUNCTIONS: a) Diagnoses the problems with the fuel systems, tests fuel injection units for possible defects, etc. An internal filter can be found on this model. Summary 12. Fuel injector calibration drift refers to the gradual change in the fuel injection rate over time, which can significantly impact engine performance and emissions. Serial Number Plate 12. The test was carried out on fuel pump test rig. Section 6-4. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . Inspect the fuel injection pump to see which pump the vehicle has: • Vehicles with the new style Symmetrical Cam design pump will have one large Mar 14, 2019 · Inline pump calibration. delivery range 200 mm 3 /stroke. 13. Aneroid DESCRIPTION The Robert Bosch Model PE(S)-6MW Injection Pump is 9. fuel pump pressure, idle mixture setting, and the maximum/mid range metered fuel pressure and/or flow values. This phenomenon is caused by various factors, including wear and tear on the injector, changes in fuel properties, and variations in Methods to achieve Pt Fuel Pump Pressure are different Quantity - Factors controlling the quantity of liquid collected in a container depends on – 1) Pressure of the liquid 2) Length of time the passage is open 3) Size of the passage In Cummins engines 4) Pressure is controlled by fuel pump 5) Time is controlled by Injector plunger & engine Sep 12, 2023 · For example, if the sensor detects a sudden drop in fuel temperature, it could indicate a problem with the fuel delivery system, such as a clogged fuel filter or a malfunctioning fuel pump. Mounting Adapter 2. Fuel supply, mechanical governors, injection timing, add-on modules, electronic diesel control Diesel Engines and Fuel Systems Barry F. We also have a extremely wide variety of fuel injectors that we service. Burman,Frank DeLuca. For Fuel Injector Testers / TEST FLUID. Road vehicles — Liquefied natural gas (LNG) fuel system components — Part 12: Rigid fuel line in copper and its alloys. Turn the lever (18) on shaft (24) enough to move the top of plunger (28) of 3P1540 Calibration Pump (1) below top surface (27) (of 3P1540 Calibration Pump). WARNING Verify torque values on all connections in order to prevent fuel leaks which could result in an engine fire. This operating fuel system contains high pressure. After the engine has shut down, allow the fuel system to purge for ten minutes. It has wide application in medium and heavy diesel engines. Dec 25, 2018 · 800 mm × 6 mm × 2 mm for the commissioning of the distributor fuel injection pump. Other injection parameters affecting engine performance are rate of injection, injection pattern, number of injections etc. 12. Poor throttle response – A sticking throttle blade or an incorrect signal from the TPS to the ECM will cause a mismatch in engine speed relative to how the driver operates the accelerator pedal. Performing a chemigation injection pump calibration. For a indirect-injection, the engine has an auxiliary injection combustion chamber where the fuel is mixed with air. Proper IDI VRV Adjustment and Calibration. For fuel We also test and rebuild diesel fuel injectors. Fuel fills the rest of the chamber through the fuel inlet (5). Inspect fuel lines: Inspect the fuel lines for any leaks, cracks, or blockages. NOTE: At the end of this document you can find a list of reference material found in Publication M-0. Fuel injection nozzle test 9. Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 278-4138 Fuel System Protection Gp (1) 1 ( 1 ) This tool can only be used one time. Standard adjustment mm-shims Altitude Compensator (I think it’s 2 mm) 2. For a diesel engine, fuel pressure time setting and calibration are very important parameters, which influence and increase the engine efficiency, performance, emissions, and combustion. Calibration is typically performed by connecting the fuel injector to the fuel rail, pump, and regulator, as it will be in the vehicle. DIAPHRAGM-OPERATED The diaphragm type is basically similar to those used on petrol engines. If free from contamination connect to the engine driven fuel pump using the appropriate Our Promise. NOTE: If the high pressure lines leak after installation, the lines need Jul 1, 2008 · The Dodge Cummins engine has used four different Bosch-sourced injection pumps over the last 20 years. com Feb 11, 2019 · Dear friends, now we are showing here how to check the status of the FIP fuel injection pump. Fuel efficient kit 11. ISO 4113:1988, ßoad vehicles - Calibration fluid for diese1 injection equipmen tO ISO 7440-1 :1991, ßoad vehicles - Fuel injection equipmen t tes ting - Part 1: Calibrating nozzle and • Small piston type injection pump to overcome pipeline pressures. The instructions in Publication M-0 are thorough but convoluted, requiring reference to sub-steps and data in different sections of the document as you advance through the procedure. Road vehicles — Liquefied natural gas (LNG) fuel system components — Part 13: Tank pressure control regulator. To remove air bubble, there is bleeder screw or air vent screw on the filter and the pump in the fuel gallery. Fuel supply line restriction between the fuel pump and the injectors . The Continental 360 engine drives a positive-displacement, vane-type fuel pump, which has the ability to supply over twice the fuel needed for proper engine operation at any power setting. The pump may be driven by the engine camshaft or the injection pump camshaft. 1 Pressure source. 1962 Bosch Technical Instruction Robert Bosch. Symptoms of a Faulty Throttle Body. SERVICE MANUAL. To test the fuel temperature sensor, one can measure its resistance at different temperatures using a multimeter or an oscilloscope. We regularly work with these companies: Stanadyne, Roosanaster, Bosch, CAV, Lucas, Simms, Delphi, Denso, Mico, Yanmar, Zexel, Diesel Kiki, Kubota, Ambac, American Bosch, Deutz and Hatz. Inspectors in Ohio “must pass a series of 20 tests May 21, 2016 · this video will help you set up injector pumps on 2. Posted in 3306. 18. 9 are details of specific apparatus that shall be used, unless a suitable alternative can be demonstrated. Errors in injection pressure can affect fuel atomization, combustion efficiency, and emissions. Later on we will change the Custom Linear WB settings to account for offset and linear errors. At D&E Diesel Fuel Injections Services, we are committed to providing our customers with exceptional service and quality workmanship. • Simple to install and low cost of ownership. A breakaway of a positive displacement pump. b Fuel Injector Flow Rate Programming Circuit/System Description. Check the fuel tank for any clogs or obstructions and make sure the fuel filter is clean and not clogged. pumps. 1 to 4. It includes: 1) Test conditions for the nozzle, holder, opening pressure, injection pipe, fuel temperature and supply pump pressure. Here is a picture of an awesome set of Fuel Flow Set Up gauges built up by Pedron Aircraft Works in Denton, TX 940-453-5324. Closure pulse and more. J1549 has 4. This document provides calibration data and testing specifications for an injection pump used in Hyundai vehicles. NOTE: CELECTTM injectors do not require flow calibration. Net weight (kg) of the injection pump test stand: 1000 after packed. 8 mm diameter orifice plates and to assist in identifying problems in fuel injection pump test stands. 5L diesel injection pump replacement and electronic timing check to verify TDCO. DO NOT torque. Hand Priming Pump 3. 6K views. 20cc of fuel in 10 seconds would give you procedure must be used for fuel system flush whenever any fuel system component has been replaced: (a) Utilizing the airframe boost pump, flush a minimum of 1 quart of fuel from the fuel pump inlet hose into a clean, dry container. The inspection procedures listed below outline how to identify which design injection pump is installed so that a technician can verify that the ECM is programmed with the correct calibration. Shut-off Lever 6. You may find it useful to print out all of Jun 10, 2023 · Fuel injection calibration checks are a critical process in ensuring the optimal performance and efficiency of internal combustion engines. Jul 24, 2017 · Fuel injection pump phasing is a procedure that adjusts the fuel injection timing of the fuel injection pump relative to the crankshaft. ISO 4008-3:1987, ßoad vehicles - Fuel injection pump testing - Part 3: Applica tion and test pro- cedures. The CPL (Control Parts List) Manual, Bulletin No. This International Standard specifies two types of calibrating injectors intended for testing and setting diesel fuel injection pumps on test benches. Jul 31, 2023 · Typical spray penetration range: 50-150 mm. Assemble the pump 4. It applies to. Each injectors flow rate information, or injection quantity adjustment flow rate numbers, and cylinder position are stored in the memory of the ECM. SECTION 1 - GENERAL Page troller but is also capable of being far more tunable than System, call 951-340-2624. 0 Adjustment and Test: Adjust and test the TITAN EXP Fuel Injection System in accordance with procedures contained in the TITAN EXP Fuel Injection System Manual and calibration data contained in the The design of the pump will determine which calibration will need to be programmed into the PCM. 0 L john deere engines Jul 5, 2023 · 1. Output power: 7. 3379664. Clean the pump 3. This comprehensive guide will delve Participants will become familiar with the design, functions and operation of the Hartridge Cummins PT pump test stand, Become familiar with the design, functions and operation of the Hartridge Cummins Injector test equipment. Robert Bosch Model MW Fuel Injection Pump 1. 2) Loosen the jam nut on the regulator adjustment set screw. Protects the core parts of pump unit. Perkins Diesel Service provide the necessary services to repair diesel fuel injection pumps and calibrate the system for the proper delivery of fuel and pump performance. 3. Jan 30, 2018 · Mechanical fuel injection works well for naturally-aspirated or forced-induction engines and handles most any type of fuel — gas, ethanol blends, methanol, and even nitro blends. Testing and Calibration. Nozzle valve lift 10. Orifice test of fuel feed system 6. These fittings will be used to tee into fuel lines for unmetered and metered pressure reference. Learning & Sharing Diesel Injection Systems Most relevant  Kyaw Min Oo. To check the pump’s calibration, you must have an accurate As each injection pump is built at the factory, GM required them to deliver a specific amount of fuel for emission purposes. fuel in a safe manner. Center height of the diesel pump test bench: 125mm. C. Injection Pressure: Fuel injectors operate at specific injection pressures, typically ranging from 30 to 200 bar (435 to 2,900 psi) for gasoline engines and up to 2,500 bar (36,250 psi) for diesel engines. • High calibration resolution, typically as low as 0. NOTE: Replacement of only the injection pump does not require this procedure. Creating pressure. Jan 30, 2024 · The injection pump seems to be an engineering marvel with complex internals and and numerous components that require manual adjustments to properly set it up. 8kg·m2. 3 comments · 8. During powerup Spartan 2’s Output Sequencer will be triggered, the Output Sequencer Apr 30, 2018 · fuel pump in the tank results in quieter operation, less chance of cavitation and a reduction in pump temperature. If you measured volume of the fuel you need to divide by the density of fuel, normally around 0. • Piston pump driven through reduction gearbox gives long service life. Timing Pointer Plug 11. Adjusting the injection timing provides reduction of torque Jul 12, 2023 · Calibration Setup and Procedure. Family Owned & Operated Since 1948. The working of the pump is described in simple words and with examples of daily usable devices. But the procedure to calculate the injection rate is principally the same. Standard adjustment mm-shims Warm Running Device (I think it’s 0,70 mm) 3. schedules the work to be carried out. And no, this would not be their first rodeo with these gauges. Test fluid based on mineral oil designed to meet the requirements of high tolerance fuel injectors and ensure optimal calibration of fuel injectors. Inspect the fuel injection pump to see which pump the vehicle has. 60. b) Inspects internal components for possible damages and prepares parts requirements and. Install the fuel injector and clamp as an assembly into its respective fuel injector bore. Press and hold the Calibrate Button (MT500 pump) or place the magnet on the module (50/150/200 pumps). PT fuel pump AFC operation is malfunctioning or pump is not operating correctly . Please refer to the pump’s user manual for instructions on how to operate the pump. 5 grams per second fuel flow rate. 25 grams of fuel delivered in 10 seconds means you have a 25/10 = 2. If you Mar 31, 2022 · Results showed that for the case at 0% EGR level with conventional injection timing, about 30% of the fuel exergy was destructed during combustion processes, and as EGR level increased to 45% Apr 6, 2010 · 4. Do not open the high pressure fuel system without allowing the fuel system to purge. The injector should spray into a collection vessel, either a graduated cylinder for measuring the volume or a test tube for weighing the fuel. Average trouble-tree working time of pump tester: ≥2500h. Johns Joseph. High Idle Stop 7. Fuel-Injection System Diagram. 1. Injector calibration is not correct or does not match (CPL) build list . 14 likes • 14,372 views. Then the stroke cycle starts again. Please perform the following fuel system flushing procedure prior to performing further evaluate the influence of fuel injection pump parameters on fuel delivery. Asmus. When the fuel injection pump speed is 1000 r/min, the fuel supply rod is fixed at the position of 103 mm3 cycle, 1000 pumping fuel May 22, 2019 · Learn how to calibrate the flow rates on your new fuel injectors installed in a BMW N55 6 cylinder turbocharged engine. Positive displacement pump injector. Exposure to high pressure fuel can result in personal injury. How i\did you get the fuel pump Calibrated pressure gauges may be purchased from various suppliers such as: Davis Instruments 4701 Mount Hope Drive Baltimore, MD 21215 Phone: 1-410-358-3900 or 1-800-368-2516. pdf) or read online for free. Actual and desired timing. Flywheel inertia’s moment: 0. 4 describes the procedure to measure the appropriate fuel injection system parameters and 6-4. 11. Open the cover on pump 1. 4. Phasing of fuel injection pumps 8. Self Assessment Nov 7, 2023 · November 7, 2023 by TechieScience Core SME. Start the engine and idle engine until coolant temperature is at least 170 degrees F. Be capable of troubleshooting and repair of the PT fuel system using approved tools and service procedures. 5kw~15kw. In the direct-injection method, fuel is injected directly into the cylinder, where it is mixed with air. Mar 13, 2008 · Remove the engine-driven fuel pump inlet hose and terminate the end into a large, clean container. Driven from a pad on the right-front side of the crankcase, the fuel pump takes gravity-fed The fuel injection system works correctly only when there is no air bubble in pipe lines. ISO 4008-1, Road vehicles — Fuel injection pump testing — Part 1: Dynamic conditions ISO 4113, Road vehicles — Calibration fluids for diesel injection equipment ISO 4788, Laboratory glassware — Graduated measuring cylinders ISO 7440-1, Road vehicles — Fuel injection equipment testing— Part1: Calibrating nozzle and holder assemblies concentrate into the injector to be mixed with the water stream. (7) The standard injector selected for the diesel pump test bench can be used for fuel supply per cycle not exceeding 300 mm3. Setups can range from simple single-nozzle systems costing a few hundred dollars through to systems costing tens of thousands of dollars. Fuel Supply Pump 10. ROBERT BOSCH. and also tuning the pump for even flow and pressure to each injectors. This allows very accurate adjustment of conductivity figures. Phasing And Calibration Fuel Injection Pump Fuel Injection and Controls for Internal Combustion Engines Paul G. This SAE Recommended Practice is divided into two parts: Part IDesign, Description and Specifications of the Fuel Injection Pump; and Part IITest Procedures for Using the Fuel Injection Pump. Make sure all connections are secure and tight. From outward appearance both pumps look identical, with the exception of specific identification marks machined into the body of the pump. The PCM with or without the injection pump has been replaced. The video covers just a portion of the test and calibration procedure. FUEL INJECTION PUMP. We show you how using the ISTA+ diagn assemblies for applications using 0. - I do not own the right Fuel Injection Pump - Remove SMCS - 1251-011 Removal Procedure Table 1 Required Tools Tool Part Number Part Description Qty A 278-4138 Fuel System Protection Gp(1) 1 (1) This tool can only be used one time. How to find CLOSE to tdc on your injection pump (Mack e7 350) for pump replacement, whether or not you have the tool. 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