3406b bad injector. Loosen the bushing from the pump housing with tool (B).

3406b bad injector What are some things I could check to verify it is indeed a bad injector? I'm only familiar with my 6. Tested transfer pump pressure at idle-20psi (used plugged Feb 24, 2013 · Search this forum Printer friendly version E-mail a link to this thread Jan 7, 2018 · 3406E injector cups Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Gumper, Jun 26, 2018. Jun 19, 2009 · A friend of mine has a 475 Cat that has been "maxxed out" at the Cat house through the computer. Inspect the fitting for cracks or pinholes, especially if air escapes through side holes during pressure testing. 79 KW W900A 3406B, Garrett GT55 turbo, RTO12513, 4. I think we have a concencuss that the 349A is the jake head to have, Sledman had trouble with 2 sets, but the rest of us have had good luck with them and they provide a lot more hold back than the 346 heads maybe twice as much If you want to Install tool (B) in the fuel injection pump housing as shown. Ensure all injector line connections are tight and free from corrosion. What else needs to be changed besides the injector seal when he does it. Usually a sign that you have a bad Injector O Ring is the engine wont start instantly and go straight to Idle RPM and smoke discolouration at start up. The 3421 is the more desireable of the 2, the 3422 is considered an economy nozzle. It features a gear-driven camshaft and mechanical unit injectors, and it’s turbocharged for increased power density. The plate on the side is the fuel gallery that the injection pumps draw from and indeed pump back into when the rack is in the stop position. It's serial number is 3zj48865. Replaces 10R0957. Get your heavy equipment running efficiently with great prices and fast shipping from HHP. The problem is it won't restart unless I manually move the rack back thru the access port at the front of the pump. Only missed at a low rpm. The most crucial component of the fuel system is the fuel injectors/nozzles. Click for Cat 3406b horsepower and torque! Feb 1, 2014 · Howdy fella's. Feb 28, 2013 · In your opinion, do I replace all injectors, as they are all the same age and the next one may be soon, or do I just replace the bad one? Also, do I repair the tip, or swap the whole injector with a refurbished one? Oct 31, 2023 · In this guide, we will walk you through the process of removing injectors from a 3406B CAT engine. As I posted a few weeks ago, my 4MG has low power (14 lbs boost)and tested at 20psi fuel press. Understand the inner workings of this essential engine component. I had just gotten fuel, started the truck pulled away from the fuel island and heard a miss. Using a multimeter I get 1 volt at the injector terminals and on one injector I get 4 volts. I would guess broken oil ring or bad valve guide. Good luck. Produced with CyberLink PowerDirector 21 Jan 15, 2021 · Reinstall the timing cover. 5″ (137mm x 165mm) Aspiration: Turbocharged, with Mar 4, 2007 · Help - Cat 3406b Advanced Timing Unit Installation Procedures Jump to Latest 38K views 3 replies 4 participants last post by ynot Mar 6, 2007 O Jul 20, 2009 · I have a 99 Peterbilt with a 2WS 550 3406E with 1. I ran an injector cutout test, and every injector tests fine individually. Have a few friends with the same nozzles in 3406B engines they just seem not to last very long. To diagnose a bad fuel injector on a Cat 3406B mechanical engine, listen for uneven engine sounds or misfires. Apr 19, 2019 · 3406B hopping/starving for fuel Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by PSM379, Nov 27, 2021. A leaking fitting connecting the injector lines on a 3406 engine can cause external fuel leaks. Do you have to remove the valve covers? I have the tooling from cat, just don't know where to start May 28, 2022 · 3406b low boost and fuel pressure issues Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by rs72z, May 28, 2022. To replace injector cups on a Cat 3406E, first remove the valve cover and rocker arms. Oct 1, 2011 · When replacing the O rings ensure you use/replace all 3 Seals on each injector and ensure that there is no reminence of the old tip seal left in the Injector Cup. Nothing. View Image View Image Illustration 1. 6 liters) Bore x Stroke: 5. I was expecting to see fuel Hi Eric, the 3406B injection pump is the same scroll (Bosch) type setup as any Cat pump. These engines have Electronic Unit Injectors (EUI) that are mechanically actuated and electronically controlled. com Free App Reply Like w9l 515 posts · Joined 2012 Shop diesel injectors, turbos, & nozzle honing. We used to buy brand new nozzles but they have doubled in price lately. To remove the mechanical fuel injection pump on a Cat 3406B, first relieve fuel system pressure and disconnect fuel lines. Oct 10, 2007 · The faulty injector cup would be not allowing the injector o-rings to seal properly, thus allowing fuel to bypass the o-rings. Whether you need to replace a faulty injector or perform maintenance tasks, understanding how to remove injectors correctly is crucial. Nov 26, 2020 · 3176C, 3406E and 3456 Industrial Engines Troubleshooting – Diagnostic Code Cross Reference New OEM replacement fuel injector by ProDiesel for Caterpillar 3406B engines. Dec 18, 2019 · Looking for help with a 3406b fuel injector pump (7W3906). Nov 22, 2010 · You will want to stay with the nozzle that matches your piston, due to how the injector sprays in the bowl of the piston. The injector # is 1048993 the engine # is 2WS26554 Dec 4, 2014 · Does anyone know of a video or tutorial on removing injectors from 3406b. Once freed up the engine fired up. Scott Rough running and low power in a 3406B engine often stem from injector damage or clogged fuel filters. BTW, pumping the throttle to start a diesel does nothing but give you a tired foot. The ECM sends a 105 volt pulse How To Remove And Install 3406B Fuel Nozzles. Sep 30, 2009 · Search this forum Printer friendly version E-mail a link to this thread Dec 29, 2020 · Perform this procedure under conditions that are identical to the conditions that exist when the problem occurs. Aug 28, 2023 · Caterpillar 3406b (Cat 3406b for short) is an old engine model, yet it still receives lots of great feedback. 6 liters. I have a permanent repair for the problem. What is the serial number of the engine your working with? Cody. Conclusion: By following these step-by-step instructions, you can successfully remove injectors from your 3406B CAT engine. I was wondering if this could be all that happened with the bad fuel or if it could of caused other problems like damage to the pistons ect. 3406B engines often face injector clogging and uneven fuel spray causing rough idling or power loss. See Full Warranty Statement Sep 30, 2009 · Jump to page : 1 Now viewing page 1 [50 messages per page] Dec 15, 2023 · Step 8: Repeat for Each Injector Repeat steps 5 to 7 for each injector on your 3406B CAT engine until all injectors have been successfully removed. Typically, problems with the injector solenoid occur when the engine is warmed up and/or when the engine is under vibration (heavy loads). Refer to Testing and Adjusting, “Electronic Unit Injector – Adjust”. It was smoking a lot of white smoke and missing and way down on power. Replace the faulty fitting to restore a proper seal. Jun 2, 2019 · 3406E misfire that won't go away, even after overhaul Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by JCMtrans, Jun 2, 2019. These kits will enhance the engine’s performance and lifespan. Oct 24, 2012 · Jump to page : 1 Now viewing page 1 [50 messages per page] How to change/time plungers in 3406b CAT fuel injection pump Skrapenpennies 1. Slowly rotate the crankshaft counterclockwise (direction of engine rotation) until the timing pin goes into the slot in the fuel injection pump camshaft. He will be putting 3 used injectors in it. Jun 2, 2011 · Jump to page : 1 Now viewing page 1 [50 messages per page] Mar 11, 2022 · About this item Applicability：9U-6891 Injector Sleeve Cup Remover Installer Kit Engineered Compatible with CAT C-10,C-12,C-15,C-16,C-18,3406E engines, convenient to save time and repair costs. Have been driving my 91 pete dunp truck around with low power for too long. Jan 7, 2018 · 3406E fuel in coolant Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Gumper, Jan 4, 2020. 3406B fuel injection pumps often face timing issues and fuel leaks during removal or installation. Here’s a DIY video how to sequentially adjust cat 3406e valve clearance. Put the pump housing in position on tool (A). i would hate to buy the truck fix the injectors and still chase the problem any suggestions would be Apr 22, 2013 · Jump to page : 1 Now viewing page 1 [50 messages per page] May 25, 2013 · How many of you truck owners out there, with C15 / C16 / 3406E engines, have replaced the injector seals, only to have them go bad again within 50,000 miles? It is a real problem with those engines, especially with Cat re-manufactured heads. The injection pump group part number is stamped on the top face of the injection pump housing. Loosen mounting bolts carefully, avoiding damage to the pump flange. Does anyone know what procedure he has done to the injectors and how to perform it? Highway and Heavy Parts carries premium diesel C15, 3406E, C16 Diesel Fuel Injectors for Caterpillar engines. I followed the advice given me and rebuilt fuel transfer pump, new fuel line (#10) from primary to Oct 31, 2009 · I just don't want to damage anything with injection pump (possibly starving it for lack of fuel) if transfer pump is going bad,ya know. Start by inspecting injectors for leaks or carbon buildup, which impair spray patterns. View the 3406B category Jan 18, 2019 · Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Caterpillar 3406, 3406B, 3406C, 3406E Engine. 0L when it comes to diesels. Took valve covers off for about an hour watched lines, adapters, and nozzle retainers for leaks. Engine temp is fine (if anything seems to be running slightly cooler), 18psi boost, oil is 45/65psi idle/highway. 3K subscribers Subscribe Apr 27, 2010 · Welcome to the forum, I think the 4MG is about as good as a 3406B gets , not absolutley sure, Tony or somebody can confirm , the cam is what you get . What tools do I need to extract and replace these cups. 3406B engines often face injector leaks and fuel system clogging causing misfires and smoke. Oct 10, 2015 · The only doubt I have is if the injectors are getting enough power to fire. It smokes white under load so I am checking the lift pump fuel pressure. Function:The 9U-6891 Injector Sleeve Cup Remover & Installer Tool Set was designed to Install and Remove Injector Sleeves 9u-6891 injector sleeve cup remover installer Material:Made of hight Apr 16, 2025 · The 3406B engine is a 6-cylinder, in-line diesel with a displacement of 14. Remove cover (1) from the pump housing. Whether you’re an owner-operator, fleet manager, or diesel mechanic, understanding the history, capabilities, pros and cons, macro Feb 10, 2014 · Number 2 wasn't bad or leaking but had a small spot on it. A fuel pressure drop to 20 psi between the secondary filter and injection pump under load suggests possible fuel restriction or pump wear. The C model began to incorporate electronic features with its fuel pump, but it remained primarily mechanical. I heard that tools can be fabricated. We just had the injector pump rebuilt and we installed it today. Check the secondary fuel filter for clogging and replace if dirty. Troubleshooting Fuel Injector Issues in Caterpillar 3406E, C15 Engines Every now and then, you may run into problems with the fuel injectors on your Caterpillar engine. Keep your heavy-duty equipment running with HHP. The truck started right up with no smoke. Did this video help you save time or money? Oct 26, 2010 · Jump to page : 1 Now viewing page 1 [50 messages per page] Removing injector/nozzle sleeves 3406b cat Skrapenpennies 1. Diesel fuel injection components are critical to the performance for all engines. If any of the listed part numbers are found, the 7C-2568 Screen Assembly and one 6V-5135 Setscrew are Jun 21, 2010 · The 3406 PEEC evolved from the legendary 3406 mechanically governed engine with the addition of an electronic control module (ECM). 3. 05 and 3. Tamerx Fuel Injector ( 0R3421RM ) has application for: Caterpillar 3406B, OEM 0R3421. Tony or Sled can probably steer you in the right direction. Extract the injectors carefully, then use a specialized driver tool to press out old injector cups from the cylinder head. Step 9: Clean and Inspect the Injectors Once all the injectors are removed, carefully clean the injector bodies and thoroughly inspect them for any signs of damage or wear. 4″ x 6. Customer: I have a Cat 3406e injector issue. Customer: Why is my 3406 B cat engine emitting black smoke during acceleration? Is it due to a faulty injector, or does the injector pump require timing adjustments? Mar 5, 2020 · Remove Fuel Injection Pump start by: a) remove fuel injection pump housing and governor 1. Engine tag says 3406b but was wondering since I had 3 bad injectors if it was cause I had a 7w3906 pump . Maybe someone's got an idea on this. Injector pump is 125 lbs. Sent from AutoGuide. Dec 3, 2024 · I'm working it every day. A warning: You say it won CAT 3406B Fuel Injector for SaleThis item is covered by the manufacturer's or remanufacturer's warranty. Any thougths or opinions would be greatly appreciated! Thanks. This is NOT a Sleeve Metering style pump--can be confused as such due to the plate on the side. The good thing about that is that on this particular engine you can replace the injector cups without removing the cylinder head as long as you have the proper tools. Loosen the bushing from the pump housing with tool (B). 6V-5135 Setscrew (1), 7C-2568 Screen Assembly (2), 3406 Fuel Pump Camshaft (3). Premium quality, fast shipping, and in stock Injector cup wear causing fuel contamination in coolant and injector seal failures leading to leaks. Use a stethoscope to listen for inconsistent injector operation. Aug 3, 2011 · How hard is it to replace the injectors on a 3406e cat? Im pretty mechanically inclined so i dont think thats a issue. This video goes over the proper component identification and troubleshooting for most Cat Feb 18, 2013 · The fuel lift pump and the injector pass thru adapters leaking could also cause it. 20, injector 4 These injectors are NEW nozzles that have never been installed, never ran, and never failed in an engine before. 18K subscribers Subscribed ATL Diesel proudly offers the best high-performance CAT 3406B engine parts and rebuild kits. It's a 425 with air to air and one piece aluminum pistons. If the screws are loosened, the fuel pump adjustment will be changed. Start by inspecting each injector for leaks or carbon buildup. Mar 26, 2009 · Hi, I have a 3406b 400 cat 7fb serial. Couldn't get it to do it but one more time that evening. However, during the 4-cylinder cutout, injectors 1-3 read between 3. We know how frustrating it This injector kit from PDI is designed for CAT 3406E, C15, and C16 engines. Inspect injectors for leaks or carbon buildup. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your engine like a professional mechanic in local service/repair workshop. Blue smoke and misfire in a 3406B Cat engine often indicate faulty injectors leaking fuel or incomplete combustion. 3406C Fuel Nozzle R & I. Mar 31, 2012 · The head weighs 300 lbs. Sep 14, 2023 · Replace any damaged or faulty injectors with new ones as necessary. Oct 27, 2024 · Ford 9000 cat 3406B problems after taking it to shop nmcnabb1 Oct 27, 2024 3406b cat 3406 caterpillar ford ford l9000 gasket grain injector tandem turbo N The Caterpillar 3406B is one of the most iconic diesel engines ever produced. 3406B Cat 4MG often faces fuel pressure drops and injector pump delivery inconsistencies under load conditions. If a Cat Diesel Engine doesn't have good fuel pressure it can cause a lot of performance related issues. I have looked everywhere on YouTube with no luck. Then All Mounting Bolts, Removed Advanced Timing Mechanizm On The Front Of The Drive Feb 24, 2016 · Jump to page : 1 Now viewing page 1 [50 messages per page] May 1, 2014 · I am rebuilding a 3406b and it has or-4337 nozzles and cat says they are not right. So you didn't have any prob's with yours acting like it was sorta gelling after 20 seconds from start up when your transfer pump went bad,or did it just have low power on the high side? Jul 18, 2010 · can anyone tell me how to get the injectors out after you pull the lines off it has a blot in it but the injector doesn't come out i need to replace the leaking seals, we dont want to damage anything and need to know if anything else is keeping them from coming out, thanks. He also said he has opened the injectors up a "full round". We have a lot of different categories. Looking for some real world advice. Sep 16, 2012 · For adaptability see chart. The engine is pushing major fuel into oil, i'm talking 4-5 gallons in 100 miles. Shipping Options: 1 Day, 2 Day, Ground. Sep 20, 2015 · After lapping them all and reassembly the flutter is gone and the fuel pressure is steady as can be! i always use to replace the bad ones with new complete B&P groups but ya know what happens when ya put 1 or 2 new with all the rest used and untouched?! Oct 25, 2012 · Cat 3406B Running Rough After Removing Injector Pump To Fix Oil Leak Jump to Latest 14K views 2 replies 3 participants last post by 379Longhood Oct 26, 2012 H Customer: I have a cat 3406B with the old style fuel injection pump on it. Premium quality, fast shipping, and in stock. 2. Use a stethoscope to detect inconsistent injector clicking. Mar 2, 2010 · I have cracked open each injector at the pump and they all seem to be fueling (engine labors when each is cracked). Goes over removal, preparation, and installation of an injector. Renowned for its durability, raw power, and long-lasting performance, this engine has been a staple in heavy-duty trucking, marine applications, and industrial machinery for decades. Injectors and nozzles need to meet the performan Nov 18, 2012 · Jump to page : 1 Now viewing page 1 [50 messages per page]. Remember to prioritize safety throughout the process and take precautions to prevent contamination or damage. A detailed video on how to change an injector on a 3406 Cat or C15 Cat engine. The 3406b fuel shut off solenoid is a critical component of the engine’s fuel system, responsible for controlling the flow of fuel into the engine. What does the cat manual say is the fuel pressure spec for this engine at idle and so forth? Oct 5, 2010 · 3406B has nozzle's not injectors. Shut down Sep 12, 2009 · My Dad has a Cat 3406E and he has 3 bad injectors. I changed out filters to recommended ones, put on new hoses to transfer pump and pump to secondary filter, bypassed primary filter and hose to tank, rebuilt transfer pump, bought a cat reman transfer pump, replaced primer pump, cleaned tank vent, finally bought Re: 3406B Injector Nozzles - Willie D : 9/30/2009 22:50 Re: 3406B Injector Nozzles - Willie D : 10/1/2009 08:53 Re: 3406B Injector Nozzles - CATGUY : 10/1/2009 20:09 Re: 3406B Injector Nozzles - Willie D : 10/1/2009 22:52 Jump to forum : Search this forum Printer friendly version E-mail a link to this thread Delete cookies Jul 19, 2005 · I know the C is built stronger but factory equipped does the C have the capacity to fuel as much as the B? Can the C be turned up as much or more than the B? What is the pyro limit on these motors? What is the max boost on the C? Thanks ahead of time. Are these the right nozzles? It's got an or-6689 turbo on it Nov 9, 2010 · We've got a 92 Ford 9000 tandem dump truck with a 3406b cat in it. Working on a 3406 model cat how do I find the bad injector - Answered by a verified Technician Feb 17, 2021 · 3406b running rough Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Dylan344, Jul 15, 2021. The question is when he changes them out what is the hold down bolt torque spec. at idle. Hi Eric, the 3406B injection pump is the same scroll (Bosch) type setup as any Cat pump. Nov 24, 2011 · Or dumped where ever, some Google searches indicate a bad injector on this motor could dump it into the oil? Guess it just depends on exactly is wrong with it. Thanks for your help. The ECM controlled major functions of the engine such as engine timing and fuel rate by using actuators. The engine has been sitting for several years and had a stuck fuel rack. 2 million miles. No smoking,rattling, or missing. Upon reading threads on the subject, I have started to try to correct the situation. Like they say on this site 1 in 10 Cat reman nozzles don't meet specs. NOTE: Do not loosen screws (2). Narrowing it down to low fuel delivery but a little confused. Fitment and performance guaranteed with manufacturer part number 100-7556. Aug 4, 2014 · 2ek00444. The 3406B is a very good engine, but if you have to go into it be prepared to spend some money. The Sep 24, 2019 · 3406b 4mg pump adjustments Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Shreemiano, Sep 24, 2019. Our Caterpillar 3046E and C15 fuel injectors meet or exceed all OEM specs. Ever since the rebuild, it has had a choppy lope, and now it seems to have a miss. Got out on the road went through the gears and never Tamerx Fuel Injector Set 0R3421 (Set of 6) for Caterpillar 3406B is built for OEM replacement. Check fuel filters for contamination after long idle periods. Cat doesn't give away their parts, and I most highly DO NOT recommend aftermarket parts. May 17, 2014 · Ok, so to start with, I had a bad fuel pressure gauge that showed 20 psi at idle. In this video you can find short explanation of checking and adjusting the valves clearance and injectors on an electronic cat engine. I am leaning towards a bad nozzle (s). The only thing is that it is idling a little Tamerx Fuel Injector 4W-7017 (Set of 6) for Caterpillar 3406 and 3406B is built for premium performance. but the owner claims it has bad injectors due to a bad batch of fuel he had gotten. In Stock. It features 6 high-quality remanufactured injectors, with honed tips and matched flow rates for reliable performance. Contact me Mar 2, 2007 · Hello, I Am New To This Site And It Seems Awesome Especially If I Can Get Someone To Tip Me On How To Remove The Fuel Transfer/injector Pump Out Of The Back Of The Engine Drive Cover. Hopefully I'm up and running tomorrow. Remove the fuel injection pump from the housing. Nov 10, 2011 · My Friends, I am having fuel in the coolant of a 3406E and I suspect that it is one of the injector cups. The o rings I pulled out were pink, the new one cat gave me are black, part # 6j-2419. I don't know if its the new ultra low sulphur fuel causing it or quality. 11 SQHP rockwells Oct 22, 2009 · hey guys im looking at buying a 1995 kenworth w900l with a 3406b. The 3406A and 3406B were completely mechanical engines. Mar 16, 2014 · Hey guys, here's a little follow-up on prior post. Perform a fuel pressure test to ensure proper delivery. Mark timing positions to maintain engine timing. Any fuel line from the pass thru to the nozzle that is loose would cause fuel in the oil also. Gonna go back with one of the ones that came out to double check. I Removed All Accessories. I don't have access to cat tooling to do this job. What are the common CAT 3406 engine problems? A Power Engine Caterpillar released many variants of the 3406, including the 3406A, 3406B, 3406C, and finally, the 3406E. The engine was rebuilt 75,000 miles ago, including a new head, injectors, cam, and injector wiring. Two separate fuel injection shops recommended new nozzles Learn how the 3406b Cat injection pump works with this detailed diagram. This solenoid is typically located on the fuel injection pump or the fuel rack assembly. Below are its technical highlights: Configuration: Inline 6-cylinder Displacement: 893 cubic inches (14. ktwzz vyob cmvz jkulpzl ncws cxneviz lhbnr jfapjp xrcmo vypg txaqd tigk ufdm shxftz mtjddot