This engine was produced since and was the biggest engine of the EJ family. It was widely applied in all main car models. Subaru EJ25 engine used the aluminum cylinder block with dry sleeves. It is similar to the EJ20 cylinder block, but diameter of cylinders was increased to It contained the crankshaft with a piston stroke 79 mm. The rod length remained the same Due to all this it was possible to get 2. The timing system uses timing belt. The timing belt replacement is necessary for each 50, miles of mileage 90, km. In pistons were modified, and power increased to HP. This motor was used for Subaru tillthen it was replaced by EJ engine. In the State of California you can find EJ engines, meeting the advanced environmental standards. EJ differs in intake system, throttle body and the placement of idle air control valve and MAP sensor. Since Subaru started producing EJ engine. It improved its ecological index. Sincethey began to apply variable valve lift system i-AVLS, on the intake side. In this motor was slightly modified: it received lightweight pistons, changed intake ports, new plastic intake manifold, new spark plugs, improved i-AVLS system and lightweight exhaust system. Now we will examine engines with DOHC heads. It is a direct successor of EJ25D and refers to Phase 2. The compression ratio was reduced to 8. Maximum boost pressure is Also there is EJ version with the increased intercooler and with maximum boost pressure It allowed to receive the power HP at 5, rpm. Its maximum boost pressure This is enough to get HP at 5, rpm. Because of this, power increased to HP at 6, rpm, and torque Nm at 4, rpm. EJ25 firing order is The main problems of EJ25 are high oil consumption, oil leak, knocking. EJ20 engine has similar problems. HERE you can learn in details about them their reliability. Besides, due to the increased diameter of cylinders, sidewalls between cylinders became thinner. It may cause EJ25 overheating. If it happens, then there is a high risk that heads of the cylinder block will be deformed and in its turn it will cause leaks through the head gaskets. Also, having EJ and EJ, you may face connecting rod bearing failure, especially after power increase. Probably, you want to know more about how to turbo EJ25? There is no sense to waste time for improvement of naturally aspirated EJ25, you will just waste your money. It is even more useless to build NA EJ It will give additional horsepower. To increase power even more, you will need to buy additionally to the above mentioned STi Group N engine mount set, a 3-row Mishimoto radiator, sump baffle plate, cc fuel injectors, Garrett GTX R turbocharger, wastegate tial 44 mm, Aeromotive fuel regulator, fuel lines. It will be very good if you make port and polish for heads and remove TGV valves in intake manifold.
Subaru ej25 engine problems
Remember Me? What's New? Results 1 to 7 of 7. Thread Tools Show Printable Version. Much time and effort has gone towards organizing these files so please be reasonable when choosing your files for download. Abusing these third party cloud hosting services only hurts the community. Don't ruin this for us all. We only provide links! If you find any issues with the linking system, mislabeled FSM's or links have gone down please PM chuckthefuk or rkrenicki Thanks for all contributing members. You know who you are. Since a lot of the old links had expired, I deleted all of the Megas from the list. I also deleted references to the broken picture links for flags and excess carriage returns. The new OP is about half the length of when I started. I need to see if I can track down some corrections to this list, as there were some errors. This list really bothers me with the way it is laid out. It is quite improved now, but it is still a whole lot of white-space that isnt necessary. I have an idea of how better to sort it, but I need to play around with it offline before I put it into practice here. Originally Posted by rkrenicki. Thank you guys for the link! Thanks for this! All times are GMT The time now is AM. All rights reserved.
Subaru engine rebuild guide
A class action lawsuit was filed against Subaru of America SOA because of a defect within the engine manufacturing which could lead to premature engine failure. It was settled by the Camden, N. Subaru is also extending the powertrain warranty up to an additional eight years on model years or up tomiles. Owners can file a claim here and it must be done by May 22, Your engine may not have failed, but one way to determine if you could be having a problem is if you begin to experience a slight decrease in power which could be a sign of major issues ahead. Leave your comments below, share the article with friends and tweet it out to your followers! Skip to main content. Here are the steps you should take. Who is eligible? Visit Torque News homepage for more stories. Latest Automotive News. Performance Vehicles. Subaru News, Pricing and Reviews. Subaru WRX. Subscribe to Torque News on YouTube. Comments Christopher Gen My friends and I have on several Subarus over the years I have owned a WRX a WRX and have built the engine twice and now I own a Legacy GT all these problems stem from cylinder number 4 overheating and blowing out even the rod bearings go out on every Subaru model and even the ones with avcs the hoses always break and shatter. Don't get me wrong I love Subaru but I wish there would be a better compensation or fix for the EJ series. John Mandel wrote on March 31, - pm Permalink. Any chance it extent to Forester xt or other xt models? Kathy Taylor wrote on November 17, - am Permalink. Currently having engine failure issues with my Forester XT and asking Subaru to provide a remedy. How about the cars?? Kasey Taran wrote on June 22, - am Permalink. How do Canadians deal with this issue? Mike wrote on August 19, - pm Permalink.
Subaru engine identification
The 2. The engine became widespread in all major models of the brand. This engine uses the similar EJ20 cylinder block which differs by the bigger bore Connecting rods length is the same, but the compression height of pistons is shorter by 2 mm These changes give 2. Camshafts are driven by timing belt as well as each EJ motor. The power of EJ20D is hp at rpm, but from it got new pistons, and its power output rose up to hp. This motor was replaced in by the more modern EJ engine. The EJ engine was built for California State especially; it has another intake manifold and throttle valve for reducing emissions. The EJ is another version of the EJ25 which appeared in Fromthis engine was fitted with the i-AVLS system, which changing the intake valve rising. The EJ was tuned again in - light pistons and headers, plastic intake manifold and new plugs. The naturally aspirated 2. The EJ is a turbocharged version released in as the engine for the Forester. The compression ratio is 8. The engine has TD04L turbocharger produced 0. The output of this configuration is hp at rpm. It uses a slightly different cylinder block and cylinder heads. The output is hp at rpm. The power of this engine is up to hp at rpm, and torque is lb-ft Nm at rpm. The EJ25 2. You can read about them here. Home Subaru EJ25 2. Subaru EJ25 2. Engine Specs Manufacturer. Production years. Cylinder block material. Cylinder head material. Fuel type. Number of cylinders.
Subaru 2. There are specific ways to test a Subaru 2. Under the hood of each car lies a series of complex components, some of which heat up in the process of powering the engine, and others that exist to counter these effects and prevent things from overheating. From the thermostat and fans to the radiator and coolant reservoir, each part relies on the other to keep the engine cool for safe driving. Sometimes, however, things go awry, and a car experiences cooling problems that make it difficult — if not outright dangerous or impossible — to continue driving. Such has been the case with Subaru 2. With applications made abroad — including parts made by the Japanese automaker — the speed of the cooling fan is controlled by a pulse—modulated fan motor. By way of contrast, in domestically made applications, fan speeds are activated by the powertrain control module. Either way, a fan can be diagnosed with the use of a code reader. As with other vehicles manufactured overseas, clogs can easily form in the cooling tubes of Subaru radiators due to very thin cross-sections. Despite the fact that most original equipment OE coolants are formulated to last beyond the k mileage mark, the anti—electrolytic additives can degrade and cause corrosion within the radiator. Over time, pressure cycling can wear down the components of a cooling system. When pressure cycling occurs, coolant is forced by the radiator into the reservoir. When it does occur, however, one of the following symptoms is usually the cause: a cold system with gases trapped in a cold thermostat, or disappearing coolant with no apparent leakage. When the system is cold, a head gasket leak could cause gasses to get trapped inside. With no way to escape from the closed thermostat, gas pressure can mount inside the engine and cause a reverse flow of coolant through the radiator and back to the reservoir. When worse comes to worst, the reservoir overflows, the coolant is lost and the system overheats. The other symptom involves leakage with no actual evidence. In this situation, the coolant repeatedly needs replenishing, despite there being no trace of oil or fluid on the ground. The likely reason is that coolant is being sucked into the head gasket and ejected from the exhaust. Signs of this occurring include coolant residue on the spark plug insulator, which indicates that coolant has entered the cylinder; and milky brown engine oil, which would prove that the head gasket has leaked. Another sign we talk to customers about all the time is white exhaust smoke. This indicates coolant loss via a cracked or warped cylinder head, a cracked engine block, or head gasket failure caused by severe or chronic overheating. To prevent this from happening, have your technician inspect your vehicle and explain that the coolant sensor and thermostat are properly calibrated. Furthermore, warm up and cool down the engine to test the reliability of the thermostat and sensor, and to vent any air that might be stuck in the cooling system. In phase two 2.
Subaru ej25 engine for sale
Timing is something that freaks people out when they do it for the first time. I know I was freaked out about it when I started work on my Subaru. But I found it quite strait forward once I got into it and hope my experience can help you out. Not true, I did it and my car is still running great. I know you are good enough to set the timing on your Subie too! Thus, this is a pretty detailed post as I tried not to leave anything out. So, get cozy. Also, if you have any questions or want to make a comment. Please leave one at the bottom. The job of the timing belt is to position the valves correctly in relation to the pistons for intake of fuel and exhaust. So, when a timing belt is set in the incorrect position or wears outvalves can be smashed by the pistons and severe engine damage occurs. With most cars, timing is set to top dead center on number 1 piston. But on a Subaru with their funny horizontal boxer engine, it is set at mid-stroke. For those not familiar, I will explain what that means later. This DIY post will explain the most minimal way to access the timing belt for doing a timing belt change. If you are already taking the engine apart for something like a head gasket job, you can ignore the first part of this post. You will also probably want some power tools. The harmonic balancer is torqued to ft. A cordless impact wrench like the one in the middle is a very useful tool I would highly recommend for anyone doing much work on cars. I just got that wrench and wish I got it sooner. A butterfly wrench will, if you have one. This blog is based on my experience working on an Legacy Outback, I know this procedure would be exactly the same for many other years of Legacys, and probably the same or very similar for many years of Foresters and Imprezas with a EJ25 SOHC. Remove the plastic splash shield underneath, 5 x 12mm bolts underneath and 2 x 10mm screws in the wheel wells. Get a bucket or drain pan under the cock at the bottom right of the radiator. Get your big phillips screw driver out and loosen that cock up things are starting to get exciting already.
The FB-series is an entirely new engine manufactured by Subaru. The 2. The production of this engine started in The engine is full of innovations and modern technologies like small capacity version - the FB20 engine. The FB25 is built on the FB20 aluminum cylinder block. For achieving the more significant displacement, there are 94 bore cast iron sleeves, but the stroke is the same. The thickness of cylinder walls is 3. The FB25 engine got new pistons for reducing the friction inside the block and getting down the compression ratio to The aluminum FB heads consist of two pieces - the cylinder head itself and the camshaft carrier. That allows a reduction in metal thickness and weight. The heads are DOHC with four valves per cylinder. There are roller rocker arms instead of lifters. The fuel injectors were moved to the cylinder heads also, and injection system became more complicated but more efficient. Intake and exhaust valves and ports have been modified for better airflow. The all FB25 engines have maintenance free timing chains. The exhaust system was tuned and got new manifolds and diameters of tubes to improve catalytic converter warm-up and to give more performance for the engine. The engine was slightly modified in The manufacturer reduced the thickness of cylinder walls to 3. The heads have been revised also. They got reshaped intake ports and new 36 mm intake valves. There are the new intake manifold and lightweight exhaust system. The FB25 engine is more responsive at lower engine speeds compare to EJ It has the same power but lower rpm and increased torque at lower rpm.
Ej25 engine specs
Later, we learned it was because Magnus had assembled over of these engines while working at Cosworth Engineering. At Subaru, the EJ engine remains one of the most popular platforms for motorsports use. While its direct-injection descendants FA-series may eventually become even more popular, the EJ will continue to be a favorite of enthusiasts for many years to come. All of the EJ short-block and long-block assemblies sold through Cosworth Engineering were built from brand new engine cases. Hence, Magnus had the opportunity to see over examples of what the Subaru factory produced. Over percent of the new blocks supplied passed the QC check at Cosworth Engineering to eventually become a Cosworth Engineering shortblock or longblock. In a production environment, boxer engines are simply harder to manufacture at the same level of precision as an inline. However, matching the left bank to right bank pairs so that both are in perfect alignment exactly degrees opposed to each other is more of a challenge than just putting four cylinders in line. With the EJ engine cases, the alignment of the main journals that support the crankshaft are never perfectly aligned. Typically, the alignment is off by about 0. This misalignment may even be as high as 0. As a result, pistons may differ in deck height position by as much as 0. This creates a difference in compression ratio in different cylinders. It is also likely that the main line for the crankshaft is also misaligned in the perpendicular plane. Hence, the crank may be higher in the block near the front of the engine and lower near the back or vice versa. In addition to alignment challenges, the design of the main bearing housings of the EJ results in some inherent issues. The number two and number four main journals are thinner than the rest. When an EJ engine is abused overheating, detonation, extreme power levelsit is not uncommon to see the number two and number four bearing housings become oversized up to 0. While many tuners often discard blocks with this injury, it is possible to remove this flaw through a line boring operation. Fortunately, there is a way to correct nearly all of the alignment issues with the EJ engine. This process starts by setting each case half in a fixture where measurements are taken to determine how much material will need to be removed from the mating surface in order to allow for a precision main line boring operation in a CNC mill. In most cases only 0. Setup for the line boring operation requires dial indicating the top and bottom main bearing housings. Once the block is ready for machining, a precision boring operation is done in the CNC mill. This precision line boring operation now establishes the exact centerline for the remaining machining operations. During these processes, the cylinders are bored exactly centered and perpendicular to the crank centerline. Hence, the bore spacing can be exactly set to the factory blueprinted specification. While still in the engine machine center, the deck height for both banks of the block are equalized. Back in the Cosworth Engineering days of EJ development, none of the blocks were ever machined for sleeves or closed deck inserts. Fortunately, both Darton Sleeves and L. We have already used Darton sleeves on multiple B-series, D-series, K-series and F-series builds with excellent results while we have used L. Sleeve products with great success in multiple Nissan and Mitsubishi applications. Currently, we are in the process of machining and assembling a stroker EJ build that features Darton Sleeves. Cylinder sleeves offer a high-strength repair solution for damaged or worn blocks, or they can be used to simply fortify the engine further.
Subaru engine compatibility
It's a good way to demonstrate good sportsmanship and gaming etiquette. You will have the opportunity to introduce and share your own life experiences and perspectivesand guidanceas you play the game. Be a good role model. Teach and model kindness and good manners online. Because children are great mimics, limit your own media use. In fact, you'll be more available for and connected with your children if you're interacting, hugging and playing with them rather than simply staring at a screen. Know the value of face-to-face communication. Very young children learn best through two-way communication. Engaging in back-and-forth "talk time" is critical for language development. Conversations can be face-to-face or, if necessary, by video chat with a traveling parent or far-away grandparent. Research has shown that it's that "back-and-forth conversation" that improves language skillsmuch more so than "passive" listening or one-way interaction with a screen. Limit digital media for your youngest family members. Avoid digital media for toddlers younger than 18 to 24 months other than video chatting. For children 18 to 24 months, watch digital media with them because they learn from watching and talking with you. Limit screen use for preschool children, ages 2 to 5, to just 1 hour a day of high-quality programing, and watch it with them so you can help them learn from what they're seeing. Keep family mealtimes, other family and social gatherings, and children's bedrooms screen free. Turn off televisions that you aren't watching, because background TV can get in the way of face-to-face time with kids. Recharge devices overnightoutside your child's bedroom to help children avoid the temptation to use them when they should be sleeping. These changes encourage more family time, healthier eating habits, and better sleep, all critical for children's wellness. Don't use technology as an emotional pacifier. Media can be very effective in keeping kids calm and quiet, but it should not be the only way they learn to calm down. Children need to be taught how to identify and handle strong emotions, come up with activities to manage boredom, or calm down through breathing, talking about ways to solve the problem, and finding other strategies for channeling emotions. More than 80,000 apps are labeled as educational, but little research has demonstrated their actual quality. Products pitched as "interactive" should require more than "pushing and swiping. It's OK for your teen to be online. Online relationships are part of typical adolescent development. Social media can support teens as they explore and discover more about themselves and their place in the grown-up world. Just be sure your teen is behaving appropriately in both the real and online worlds. Many teens need to be reminded that a platform's privacy settings do not make things actually "private" and that images, thoughts, and behaviors teens share online will instantly become a part of their digital footprint indefinitely. Keep lines of communication open and let them know you're there if they have questions or concerns. Warn children about the importance of privacy and the dangers of predators and sexting. Teens need to know that once content is shared with others, they will not be able to delete or remove it completely, and includes texting of inappropriate pictures. They may also not know about or choose not to use privacy settings, and they need to be warned that sex offenders often use social networking, chat rooms, e-mail, and online gaming to contact and exploit children. Remember: Kids will be kids. Kids will make mistakes using media. Try to handle errors with empathy and turn a mistake into a teachable moment. But some indiscretions, such as sexting, bullying, or posting self-harm images, may be a red flag that hints at trouble ahead. Parents must observe carefully their children's behaviors and, if needed, enlist supportive professional help, including the family pediatrician.
Subaru EJ25 Boxer Engine Assembly