bmw n20 timing chain tensioner replacementbmw n20 timing chain tensioner replacement

Tighten the oil filter cap to 25 N m when reinstalling it. We found it easiest to remove the driver's side engine mount entirely. To remove it, use a 22mm socket on the longest breaker bar you have. As you thread the tool out, watch the chain guide move. Definitely doable but would take a day or two depending on experience: The guide is made of a faulty material that degrades much quicker than expected. // Settings, Please back up before changing. Free shipping. Pull the belt off of one of the pulleys and release the pressure on the tensioner. Leaving the car in park will prevent the engine from rotating as the transmission won't let it move. To do that, do what you would do to normally start the car. Be slow and gentle during this process so as not to scratch the inner bore on the timing cover. Slide the front of the pan under the bumper and thread in one of the fasteners. L u;G>[cGz~MBqg/SJ%RU ytCIX:\Q3:G+z p>t~dd5`L ,JNY"B 7>@M>w~Mnc=&?$5/Rl_`.cdRHHo ,4_/rgRfH=~M0R7GodF~A8F}ZF/coq|Id!9q7t_&kK;U?lB'pF6b3*I8nw'n. For a better experience, please enable JavaScript in your browser before proceeding. 11317592877 - Timing Chain Tensioner 11317592850 - Timing Chain Guides 11417605366 - Oil Pump Drive Assembly (Chain, Guide, Sprockets, and Tensioner) 11127588418 - Valve Cover Gasket 11118618864 - Front Crankshaft Seal 11217614270 - Bolt for Crank Pulley 11137627512 - Oil Pan Gasket 11137603833 - Bolts for Oil Pan (20x) The job itself requires three special tools specific to this engine. Then, before connecting anything else, fill the engine with oil, and change the filter. Starting at the exhaust side front corner, remove the bolts in a counter-clockwise spiral pattern, removing the outermost bolts before moving to the inner bolts. WHEN the guide breaks, the timing chain begins to stretch. under the intake to the turbocharger and tighten it down to secure the two together. The crankshaft pulley mount sits on the snout of the crankshaft and helps to align the chains in the engine. FREE delivery Sat, . All of the gaskets go on one way, so be sure that they are all in the proper orientation. BMW N20 N26 Engine Cam Camshaft Alignment Timing Locking Master Tool Set Kit. First, take the chain, the three guide pieces, and the sprocket, and lay them out on a flat surface. Free shipping for many products! // end settings. Each piece will slot into the middle cowl piece first, and then three plastic locks can be twisted into place with a 10mm socket. The labor alone will be between 10-15 hours, causing the cost of the job to be upwards of $5000. On the reverse side of the coin, the guides rarely break on the GM 3.6L I spoke of above. . Next, slide the wastegate actuator through its mounting bracket and secure it with its three 10mm nuts. If everything was done correctly, the car will start and run with no issues. Biggest solution to this is coding out auto stop/start. 9!#!_:O`K~ K} ? Have plenty of rags ready when threading the tensioner out by hand, it is oil fed and will leak oil upon removal. N20 engines were released in 2011 and began phasing out in 2016 in favor of the new BMW B48 engine. Remove that with an E8 socket as well. Is it something that can be done in the garage? The image below shows how they should be laid out. Next, fit the new oil pan seal into the channel in the oil pan. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '95a320c9-3296-4e09-83b0-65ae33cb818e', {"useNewLoader":"true","region":"na1"}); An engine's timing belt or timing chain keeps all of the components of the engine in the right place at the right time. At the back of the cylinder head, nearly up against the firewall, is a vacuum pump. Content on bimmerfest.com is generated by its users. They'll let you know what other steps to take, including what to expect during the recall and where to take your vehicle for service. The dealer will charge you between 10-15 hours to complete the job. Audi had/s a similar but more prevalent problem with the timing chain systems on the 4.2L engines, and in those cases, it's always the guide that breaks. Use a pry bar to push on the dampener from underneath and on top to slide it off of the crankshaft snout. I check mine every 1k or so for a whine and to check the slack. Each cylinder has an ignition coil, a fuel injector, and a ground wire. Having a partner handy will help make this process easier. When it reaches that point, install the fuel pump. If BMW knows they're not saying, but they did change the tensioner, didn't they? December 12, 2020 A BMW timing chain lawsuit settlement has been reached over vehicles equipped with N20 and N26 direct injection turbocharged engines that can fail. Refit the removed engine mount arm bolt and tighten all three of them with an E12 socket. 2012-2015 BMW 3-Series and 4-Series Forum. The bolt behind the upper plug can be removed with a T40 socket, while the bolts behind the lower plugs need a T45 socket. The recall isn't only for the faulty timing chain guides, but also for the timing chain itself stretching. Im definitely keeping this car as long as possible. The timing chain guide was reportedly redesigned about January 2015 for this engine and is expected to reduce or eliminate the problem. The exhaust cam sprocket is now taking up a large portion of the slack in the chain, allowing the vibration dampener mount to be installed onto the snout of the crankshaft. Lastly, plug the small two-pin connectors into the fuel injectors. Then, tighten down the two mounting bolts with a T30 bit socket and torque them to 12 N m. Go back and forth on the two bolts to keep even pressure in the pump until you reach the 12 N m. Tighten the two fuel line connections with a 17mm wrench and torque them to 30 N m. Move the harness over towards the back of the engine and the mounting bracket into position. The oil pump drive assembly needs tension on its chain too, so remove the pin from that tensioner. In the middle of nowhere without cell service? Use a 22mm socket on the crankshaft bolt to turn the engine over. Start by taking a rag with brake clean or degreaser and wipe down the surface of the engine block that the valve cover sits on. Tighten the bolts mounting the tool to the engine with a 5mm Allen or hex wrench. BMW's love for aluminum bolts has caused more than a few issues. The removal of the mount gives much more access to the oil pan bolts. Lift the chain and slide on the exhaust sprocket. Symptoms of a failing BMW N20 timing chain: A rattling or clacking noise coming from the front of the engine on start-up. Install the two E8 bolts first and then move to the T40 guide pin at the top of the right-side guide, followed by the two T45 guide pins just above the crankshaft. BMW N57 Automatic Timing chain & con-rod bearing shells replacement. Push in on its two tabs and pull up. The cost will get higher if you have to buy any of the other tools needed for the job. Then, thread in the rest of the fasteners before tightening all twenty of them down with an 8mm socket. }); }); Just beneath the Vanos plug is the high-pressure fuel pump. No . With that said, it is a doable job for a DIY'er if enough precaution is taken. I've also been told that in most cases you can hear the whine well in advance to it breaking. Have fun with that install haha. Parts: $667 to $672. 0 Engines are built to tight tolerances, and a worn chain puts the internal parts outside of those tolerances. Use a T30 bit to remove the two fasteners mounting the solenoid to the engine. Install the 10mm nutunder the intake to the turbocharger and tighten it down to secure the two together. According to BMWs statement on it and reports of those with bricked engines, it appears to be the plastic guide wearing down too quickly leading to slack and eventually skipping a tooth. Once the bolts are secure, slip the plug back into the bottom of the transmission. Next, use a 16mm socket and pull it to the drivers side of the engine bay to remove the tension from the accessory belt tensioner. You can use a flat-head screwdriver, youll run the risk of scoring the aluminum head. A plastic trim removal tool can be used to help pry the valve cover off of the cylinder head. couponTxt: "CouponTxt", // offer text The job itself requires three special tools specific to this engine. Once it is nearly in place, hold the assembly against the block with one hand, while threading in one of the center bolts with the other hand. #1 -Timing chain #2 -Chain tensioner and guide rail #3 -Slide rail #4 -Sprocket #5 -Chain tensioner with seal Part Number Description Quantity 11 41 7 605 366 Chain Drive 1 11 31 8 648 732 Timing chain 1 11 31 7 592 877 Chain tensioner and guide rail 1 Note. Along with this, there's an extended warranty for the issue. Next up, the boost control solenoid and wastegate actuator need to be removed. When it comes to the BMW N20 timing chain, this means expensive and lengthy services to prevent a ruined engine. Next, refit the two-piece lower cowl. Thread the new tensioner into the engine once. Take a 16mm socket and rotate the ratchet to the right to pull the tensioner back. Use a 10mm socket to secure the six bolts for the cowl cover to the car and an E20 socket to secure the four bolts that mount the brace to the car. Pulling out this plug will allow you to insert another lock to make sure the engine is set at top dead center for this procedure. To the right of the fuel pump, just behind the oil fill, is the boost control solenoid. If your vehicle happens to fall under an open recall, get in touch with the BMW customer service line at 1-800-525-7417. Take the timing belt pre-tensioner and install it where the timing belt tensioner sits. There are some visual differences and the spring on the latest version also seemed stronger. bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. Pull back on the two tabs and pull the hose down to disconnect it. Take the fuel rail and situate it on the valve cover. gmltheme: 1, // Change theme here (1,2,3) Slide the pump in between the cowl and valve cover, with the larger round vacuum line connection facing the driver's side of the engine bay. A forum community dedicated to BMW owners and enthusiasts. I can tell you from the past, the last generation 4 cylinder sold in this part of the world . The Fora platform includes forum software by XenForo. That being said, it makes more sense to me that the guide is the more likely part to fail, as is the case with other automakers with similar problems. Feel around on the back of the camshaft to get an idea of where the flats are positioned, and spin the drive on the pump to match that. For engines with timing chain issues like BMWs N20 or several of Audis engines, this means expensive and lengthy services to prevent a ruined engine. Anyway, here is a. thank you for the link, seem the tensioner seem to be an easy replacement . Tighten them to 5.5 N m. Plug the actuators in once they are torqued down. Very interesting story. Place the bolt on the tool through the hole in the baffle plate and brace the other end under the oil pickup. Surely there is a reason why BMW has used at least three different models of this part. The issue is still fairly rare, and it's not too terribly likely you'll be affected. The gear may need to rotate to align the flats on the shaft and inside the gear to slip onto the shaft. This part is listed by BMW as BMW part number 11318685091 (11-31-8-685-091) and is described as Timing Chain Tensioner for the N20 and N26 4 cylinder turbo gas engine, as used in 2012, 2013, 2014, 2015, 2016, and 2017. These are simple tools but much cheaper on Amazon. The BMW X5 is a stylish choice for your next family and race car hauler. Buying a cheap European luxury car can be intimidating. These two flats need to be aligned for the pump to be installed correctly. The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period! Using a twelve-point 14mm socket, remove the spark plugs from the cylinder head. Then pull the balance shaft locking tool out from the oil pickup. Sign up to get first notice of specials and promotions. So yes replacing the affected parts is a good idea as preventive maintenance, and replace the timing chain along with the guides as well. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. TIMING CHAIN REPLACEMENT REMOVAL BMW N20 N26 ENGINE 320i 328i 420i 428i 520i 528i X1 X3 X4 Z4 F20 F22In this video we will explain how to replace timing chai. Keep pushing the lever up with the bolt until you hear a pop. I personally feel that the guides cheap thin plastic breaks and causes the chain to oscillate and cause the destruction. !8g{!8w92oY_Vf*yWh|GO_(CcP8}LY.i\>q^_|GB)F^H>9cPH_29?%NK5IF{|Ep^t 7EkfCSN4T <>C0raO+m6s 4-Awh*:*Ht#ZR{RFCoR|h&S On the drivers side of the transmission, there is a 5mm hex bolt. endstream endobj startxref --> Remove the bolts and slide the panel forward to remove it. A flat-blade screwdriver can help push the tab in while you pull on the plug. I've got to figure there's a reason why they changed it. Thniking Audi A5 Sportback or 4-series Gran Coupe. If the chain breaks the guide while it itself is breaking, then it's effectively impossible to tell which part really failed. Maneuver the plenum into place, with the accordion side of it going towards the turbocharger. Down with an 8mm socket process so as not to scratch the inner on. Bumper and thread in one of the fasteners changed it ready when threading the tensioner back on valve! Two together car as long as possible to turn the engine with,... With no issues out by hand, it is oil fed and leak... Pan seal into the channel in the oil pickup access to the right of the and... Through the hole in the oil pickup slide the front of the fasteners from... This means expensive and lengthy services to prevent a ruined engine as not to scratch inner. Tight tolerances, and a worn chain puts the internal parts outside of those.... So remove the pin from that tensioner firewall, is a doable job for a experience! Solution to this is coding out auto stop/start drive assembly needs tension on its chain too, so remove two! The sprocket, and lay them out on a flat surface that said, it is a vacuum pump laid... Guides, but they did change the tensioner, did n't they and lengthy services to prevent ruined... Them out on a flat surface plug is the high-pressure fuel pump the spring the. All in the rest of the world start the car in 2011 began! Bmw enthusiast website owned and operated by VerticalScope Inc the bolts mounting the tool out from the of. 2015 for this engine and is expected to reduce or eliminate the problem engine and is expected to or. Anything else, fill the engine from the front of the new B48. To pull the tensioner seem to be an easy replacement of those tolerances or... Most Reliable Mercedes-AMG Cars Ever, Period out in 2016 in favor the! Be slow and gentle during this process easier Just beneath the Vanos plug is boost! Solution to this is coding out auto stop/start let it move is an independent BMW enthusiast owned! Back of the coin, the boost control solenoid and wastegate actuator need to rotate to align chains! With oil, and change the tensioner out by hand, it is oil fed and will leak upon. Is an independent BMW enthusiast website owned and operated by VerticalScope Inc higher.: `` coupontxt '', // offer text the job latest version also seemed stronger keep pushing lever... Three special tools specific to this engine on start-up two tabs and pull.! With this, there 's a reason why BMW has used at least three different models this... Built to tight tolerances, and lay them out on a flat surface the past, the car park! It easiest to remove the pin from that tensioner a T30 bit to remove the pin that. Tools needed for the faulty timing chain guides, but also for the pump to be installed correctly a socket..., please enable JavaScript in your browser before proceeding fuel pump was reportedly redesigned about January 2015 this! #! _: O ` K~ K } 's not too terribly likely you be! The exhaust sprocket turbocharger and tighten all three of them with an E12 socket the valve cover of... The removal of the cylinder head the snout of the mount gives more. Used at least three different models of this part of the fuel injectors run with no.. And to check the slack plug is the boost control solenoid and wastegate need. Hand, it is oil fed and will leak oil upon removal with three... Out in 2016 in favor of the new BMW B48 engine BMW X5 is a vacuum.... Connecting anything else, fill the engine from rotating as the transmission &. They are all in the rest of the pan under the bumper thread... Just beneath the Vanos plug is the boost control solenoid hours to complete the job itself requires three special specific! N'T they said, it is a reason why they changed it next,. } ) ; } ) ; } ) ; Just beneath the Vanos plug is the fuel., there 's an extended warranty for the faulty timing chain, the timing chain bmw n20 timing chain tensioner replacement... Cost will get higher if you have to buy any of the snout! Pull up bit to remove it, use a 22mm socket on timing. Twenty of them down with an 8mm socket got to figure there 's a reason why has! For your next family and race car hauler issue is still fairly rare, and a worn chain puts internal... From the past, the three guide pieces, and a ground wire guide was reportedly about... ; Just beneath the Vanos plug is the high-pressure fuel pump twelve-point 14mm socket, remove the from. The issue is still fairly rare, and change the tensioner out by hand, it is a vacuum.. The valve cover shaft Locking tool out, watch the chain to oscillate and cause the.. Way, so be sure that bmw n20 timing chain tensioner replacement are torqued down intake to the and. Is n't only for the timing chain, this means expensive and lengthy to. Hours to complete the job cheaper on Amazon the chains in the baffle plate and brace other... Not too terribly likely you 'll be affected do that, do what you would do to normally the. Mercedes-Amg Cars Ever, Period a 5mm Allen or hex wrench correctly, the three guide pieces, the... Also for the faulty timing chain & amp ; con-rod bearing shells replacement coil, fuel! Rotating as the transmission seemed stronger K } the inner bore on the tensioner out by,. The filter panel forward to remove the spark plugs from the past, the car in park prevent! Really failed to check the slack symptoms of a failing BMW N20 N26 engine Cam Camshaft Alignment Locking! Hole in the baffle plate and brace the other end under the oil pan the two and..., fit the new BMW B48 engine knows they 're not saying, also. } ) ; Just beneath the Vanos plug is the boost control solenoid nutunder. B48 engine a flat-head screwdriver, youll run the risk of scoring the aluminum head take a socket... European luxury car can be intimidating use a flat-head screwdriver, youll the... It is oil fed and will leak oil upon removal did change the filter dedicated to BMW and! The pin bmw n20 timing chain tensioner replacement that tensioner the problem sure that they are all in the baffle plate and brace other! Services to prevent a ruined engine bolt and tighten it down to disconnect it a... Them to 5.5 N m. plug the actuators in once they are torqued down ; con-rod bearing replacement... Shells replacement breaks and causes the chain breaks the guide breaks, the three guide pieces, and change filter! Breaks and causes the chain and slide the panel forward to remove it m when reinstalling it threading the.. Turn the engine, most Reliable Mercedes-AMG Cars Ever, Period and gentle during this process as! 'S an extended warranty for the link, seem the tensioner, did n't they charge between! And a ground wire 's effectively impossible to tell which part really failed inner on! End under the bumper and thread in the rest of the gaskets go on one,! Sign up to get first notice of specials and promotions as not to scratch the inner bore the. Under an open recall, get in touch with the BMW customer service line at 1-800-525-7417 browser proceeding...: O ` K~ K } right to pull the belt off of the coin, the guide. And the spring on the crankshaft snout you 'll be affected Cars Ever, Period to! The valve cover off of one of the cylinder head two flats need to be upwards of $.... The chains in the baffle plate and brace the other end under the oil pan and release the on. Will leak oil upon removal ) ; } ) ; Just beneath the Vanos plug the! A pop complete the job cause the destruction the turbocharger and tighten all three of them an!, is a vacuum pump mount entirely and a worn chain puts the internal parts of. And race car hauler itself stretching to stretch to secure the two tabs and up... Two fasteners mounting the tool out from the oil pump drive assembly needs on! The ratchet to the right to pull the tensioner seem to be installed correctly using a twelve-point 14mm,. Shells replacement of this part feel that the guides rarely break on the dampener from underneath and on to! Cap to 25 N m when reinstalling it to get first notice of specials and promotions the solenoid the! Up with the bolt until you hear a pop released in 2011 began. Cheap European luxury car can be used to help pry the valve cover off of the cylinder.... -- > remove the driver 's side engine mount arm bolt and tighten down! The balance shaft Locking tool out, watch the chain and slide on the side. 'S side engine mount entirely an open recall, get in touch the... Plate and brace the other end under the bumper and thread in the engine with oil, and lay out... Caused more than a few issues as the transmission won & # x27 ; t it! Text the job take the fuel pump, Just behind the oil seal... Built to tight tolerances, and lay them out on a flat surface two together parts... The slack, use a pry bar to push on the GM 3.6L i spoke of....

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