Contents hide Fuel gauge not working Excessive black smoke on the right side of the engine Cylinder #5 misfire code P0305 Two wires on the injectors run back to a harness The connector had been cut and part of it was missing The fuel gauge shows empty when it has a full tank The machines have their strengths and weaknesses just like any other tractors from other brands. There is a 12 month unlimited hours warranty on this fuel injector. Refer back to the injector hold down clamp. V1702 injector pump problem, part 2 | Skidsteer Forum - Bobcat, New Heres a quick rundown of the major pros and cons. If someone could explain how the 743 fuel system works I would much appreciate it. A quick check you can do with the injection pump is to connect a scanner to the equipment and monitor desired vs actual rail pressure. Before you go off and get your injectors and pump repaired, i would check your valve clearance, then do a compression test. The fuel just runs back to the tank with the bleed screw open, close it then start the machine. Some also claim that after a further investigation, they found out they do not have a dirty or clogged fuel pump and still have this commotion on their vehicles. Do not forget to check on your pressure gauges condition and replace it if needed. Your just checking every crazy thing that could be a problem. We can test them, Excavators: E32, E35, E42, E45, E50, E55, E85, Skid Steer Loaders:S450, S510, S530, S550, S570, S590, S595, S630, S650, Track Loaders:T450, T550, T590, T595, T630, T650. He even noticed notably low hours while having those issues. Black smoke gets extracted when the engine doesnt receive enough air. Symptoms of a Bad or Failing Fuel Injector - YourMechanic If you have any problems getting back online contact me through Facebook Messenger on the Facebook HEF page. If your compression is good, it would be worth getting your injection system done. On the other side, white smoke can indicate a blown head gasket. Our technicians expect the update to take up to 24 hours due to the size of our files. Common Problems of the Bobcat 3400: 1. You have a pickup tume in the tank, it goes through the hand primer then to the filter. But after some time, he noticed that gradually it started to take a few revs above idle to get the clutches for shifting. I'm not familiar with diesels, so gradually trying to work things out. The injectors also have a rubber cap over it. Replace the head gasket to solve this. Related Article:Are Bobcat Tractors Any Good? Hopefully someone here might be able to help me in the right direction. SPONSORED. Lastly, remove the hose connected to the fuel return valve on the injection pump. Pinouts. Some tanks also have a filter in the bottom of the tank. So you should know them. When filters become clogged something that happens regularly with some of the models the hydraulic will mix with the gear oil. I cant check until about another week, the machine is on my country block..I'll see how I go. Bobcat T650 compact track loader: Problems and solutions Definitely not the Bobcat brand that we have owned for years. I believe it's the injectors, either need disassembled and cleaned or replaced all together. Perhaps you are looking at doing some maintenance work on your parts in which you should also review this guide on how to clean your injector at home. The pipe does seem a little too large for the fitting though, so doing it up tight wasnt easy, especially at the back where it was hard to get to. These pumps are very expensive and this might help. There will be a few more litle hoses to each one to the rear of the head. You may have to loosen the injector with help from a wrench. Step 2. I opened the air bleed screw and managed to get the engine running, lots of black smoke, as the engine improved I gradually closed the air bleed screw.ran well. Bobcat Heater Blower Motor Removal & Installation | Complete Guide The appearance may be different than you're accustomed to but we will work on restoring things as closely as possible. This fitting can be cleaned, if cleaning The last one goes back to the fuel tank. At one time, the engine completely refused to start, even the next day. It is not uncommon for many Bobcat tractor users to believe that their motor is faulty when the actual problem is with the charge pump. Thankfully, Bobcat provides a solution to this problem by designing reinforced tires that can withstand hard surfaces. If the fuel cannot flow properly from the tank to the fuel injector, the engine will lose its ability to run powerfully. Fuel system can't keep up with the demand and constantly needs fuel filters to get through a storm. But before you tear into the injection pump assembly, one other common problem with Bobcat machines is the strainer on the end of the pickup tube is clogged. Bobcat 3400 UTV model is a formidable competitor, which comes with a continuously variable transmission or CVT for dealing with the toughest jobs, where other UTVs cannot even attempt to perform. In such situations, you can do a couple of things, such as adjusting the sheave width on your secondary CVT to get proper belt diversion, or you can simply replace the belt. This did work when I ran it dry. If the 743B used the same engine as the 743 there should be a lift pump mounted on the side of the injection pump housing. 2003 LS180 - Injection pump Replacement | Skidsteer Forum - Bobcat, New We welcome you to register using the "Register" icon at the top of the page. This process looks fairly similar for each fuel system so let's get started. Welcome to Off-Road Care. We have talked a lot about diesel fuel injectors in some of our other blogs, but today we are going to go over how to remove a diesel fuel injector from a Doosan Bobcat engine. I have an older 543 Bobcat that I use occasionally around the house for landscaping and repair. 10 Methods To Troubleshoot Bobcat Bucket Won't Lift Or Tilt The company initially received several consumers complaints about the 2015 Bobcat 3400 UTV models. These pumps are very expensive and this might help prevent misdiagnosing the injection pump due to low rail pressure.Want more? Apart from these two, make sure the engines throttle cable is secured to the throttle body all the wiring and connector pins are in good condition without any corrosion or damage. I removed the fuel filter, some fuel inside, the filter looks okay, but I dont know how old it is, so it might be blocked. Bobcat tractors rank among the highly-rated tractors in the market. However, the good news is that according to reports, no actual fire explosions or injuries occurred. Things can even get worse if there is an extra occupant in the cab. , you can also contact us at contact@expertdieselparts.com. One particular user even mentioned that he was constantly having gear shifting issues and he even experienced very rough shifts when the gear originally shifted. The bobcat cranes are best known for heavy-duty operations. The first thing to inspect is the hydraulic fluid level. Another common issue for drive motors is clogged case drain filters. Whether you need to clean the injector, take it to a dealer, or replace it, it's a fairly simple process to remove a fuel injector from a Doosan Bobcat engine. On a side note, I have heard they have a new line that runs hot fuel to the front of the filter in the new Bobcat's, has anyone else heard if that's helping? Thats because the fuel cannot flow due to the clogged filter eventually resulting in the power loss of the loader. There are about 10 screws that go around the cover. Finally, check all the seals and fittings to the control valves. Next, grab a 6 millimeter hex allen head (make sure the bottom of the allen head is not rounded off since the bolts are incredibly tight). Bobcat t590 is designed to be durable with minimal maintenance. If the fluid level is high or low, it wont be able to provide the expected performance. If the injection pump is failing or has failed, the engine may not start or run but with low power. It then goes to the lift pump then to the injector pump. bobcat t590 fuel problems and solution - bestexcavatorpart.com You will need to remove each rubber cap. Following these guidelines will help make this the best resource for heavy equipment on the net. I used the hand pump to feed fuel into the glass bowl. Bobcat Fuel Problem | Heavy Equipment Forums Find the one about timing the LS180 etc and click on the link to open the pdf file. for News, Products & Specials, 7249380 | Reman Fuel Pump fits Doosan Bobcat D18/D24, 7256772 | Delphi Fuel Metering Valve Fits Doosan Bobcat Tier 3/4, 7030409 | Genuine Delphi Fuel Rail fits Doosan Bobcat D24, 7275454 | Delphi Fuel Injector fits Doosan Bobcat D18/D24, Feel confident purchasing from a company who has been in the fuel injection business since 1985, Not sure whether your injectors are bad? High pressure builds until the oil seal eventually fails. Usually, this kind of occurrence is a possible indication of insufficient fuel pressure. Keep in mind that the pinouts are model-specific, so check the Bobcat loader's manual to determine the compatible pinouts. The fuel system easily gels up in colder weather. These tires spread the weight of the tractor evenly over a large area to increase balance. There shouuld be a pickup screen with a one way valve in the tank. My question is: should the ball pump up firm? It is common to hear users inquiring about how to locate stores selling Bobcat tractor spare parts. The pump applies high pressure to fuel (22,000 " 34,000 psi) The common rail stores pressurized fuel The injectors deliver fuel to the engine Fuel injection pump . There is a bleed screw that is on the pump where the fuel line connects. So if you have limited space but need maximum lift height, this is the one you should go for. Fuel contamination is the leading cause of failure, If you are experiencing rail pressure codes or problems, it is most likely an issue with your injection pump or injectors, Keep the fill area on your equipment clean and free of debris, Change the fuel filter regularly to keep your fuel as clean as possible, Excavators: E32, E35, E42, E45, E50, E55, E85, Skid Steer Loaders:S450, S510, S530, S550, S570, S590, S595, S630, S650, Track Loaders:T450, T550, T590, T595, T630, T650. ALL NEW MEMBERS READ THIS FIRST!! Big snow chains on front tires only: is there slip between front and back wheels to allow for the now larger dia front tire. Three years ago I was having a problem with 743B with the Kubota V1702 engine wanting to sputter, and die out on me. One quick check you can do with the Inlet metering valve (IMV) is to put your finger on the valve and turn the key on in the equipment. If there is an open or short circuit in the glow plug, it can cause the engine to be defective. When removing injectors, the o-rings can sometimes get stuck in the rail. Bobcat M# *****(approx 1997)--Has The Peugot XUD9 Diesel Another necessary check is the leaks or poor fits in the hydraulic lines. While operating, the engine seems very good, plenty of power, good idle etc. D18 & D24 Injectors: 7275454 FUEL INJECTOR This isnt the case with faulty charge pumps. (Explained for Beginners). A small amount of contamination can invade the control valves in these injectors and cause premature failure. Then comes the hydraulic pump. Bobcat CT230 Diesel engine problem - TractorByNet Right now the post is the last one on page three if you want ot search that way. The continuous deterioration of the charge pump leads to the motor becoming weak or the tractor beginning to tilt to one end. Bobcat 763 fuel issues | Heavy Equipment Forums . 4 Most Common Problems with Bobcat T590 and Troubleshooting - Lawn Troop We sell a wide range of parts including the. Or you may be experiencing some issues with your machine and need to test your injectors to determine if they are faulty. It may not display this or other websites correctly. Required fields are marked *. Thats because the clogged filters will push the hydraulic into the motor and mix everything up. And thats it! Thank you! However, just like any other top vehicle, Bobcat 3400 also has its downsides, which leads the customers or owners to experience some common troubleshooting issues. Always fill the tank to the recommended level. The engine doesn't have the same power as the Kubota and 2. You will likely need to log in when the update is done so make sure you have that information available before we shut down. Fuel Rail: When the fuel system becomes contaminated with metal or other debris, chances are this debris will settle into the fuel rail. For a better experience, please enable JavaScript in your browser before proceeding. It can happen when too much fuel gets injected into the combustion center. It sits in front of the engine and is a crucial part of your loader. Still, you may face some of the problems that I have discussed in the article. The problem can lie in any of these components or even all of them can become faulty. . The fuel control valves in these injectors are very small and any amount of debris in the injector can get lodged in the control valve and cause problems. Never do this. Posted on Published: November 19, 2021- Last updated: January 13, 2023, 5 Most Common Problems with Kawasaki Mule 4010, 6 Most Common Problems with Kymco UXV 450I, Your email address will not be published. Bobcat 743 Problem #2- Injector problems | The SkidSteer Forum Bobcat Tractors are among the top compact utility tractors currently on the market. We work with a lot of Doosan's D18, D24 and D34 engines which are commonly used to power skid steer loaders, excavators, track loaders, tow compressors and toolcats. The valves should open and close fully. I should also say that the tank did run empty at one stage, never had problems before that, possibly there is air in the system disallowing fuel to be pulled through. The banjo bolt (Item 1) [A] located on the injection pump may be dirty or plugged. Hydro-lock, which can lead to catastrophic engine failure. Bobcat equipment software has a test to check the injectors to see if the respond to a signal. The injectors will bleed rail pressure through the fuel return or could even have a nozzle stuck open (less common). Damaged radiator cap or dirty radiator core - Clean radiator or change cap. Also, when your pressure gauge is turned faulty or damaged, it can give you the wrong reading. 6672405 6687911, 3X Fuel Injector Compatible With Bobcat 428 463 553 S70 S100. And according to reports, this complaint was not only about the 2015 versions, but also included the 2018 versions. Then raise the cab of the loader, locking it in place with the cab shock lock. tier 4 doosan engines in bobcat | Page 3 | Heavy Equipment Forums The Bobcat 3400 UTV model is no exception ensuring the perfect balance of power, quality, performance, and reliability. My problem is I need the all wheel steer during the construction season, otherwise I'd never buy a Bobcat again. Is there anything on the end of the fuel line in the tank? This will cause problems if the tractor is driven in locations such as construction sites and other places that are prone to tire punctures. Poor Emissions. This means that the tires will still have a shorter lifespan if used on surfaces they are not designed for. The bearing also seems not to last as expected. Generally, when the four-wheel-drive lights are on, it indicates that the drive is engaging correctly. You should feel a small vibration when the IMV is energized. The fuel systems on the Bobcat 1.8L & 2.4L Tier 4 diesel engines are high pressure common rail by Delphi.