function BlurEvent() { Push in the tabs on the plugs and separate the connections. Stay tuned to the blog for part 2 of this project, where we show you how to install the new timing chain/oil pump drive assembly. The BMW X5 is a stylish choice for your next family and race car hauler. Maybe, maybe not. Including fluids replacement. If the chain breaks the guide while it itself is breaking, then it's effectively impossible to tell which part really failed. Im definitely keeping this car as long as possible. Buying a cheap European luxury car can be intimidating. I would DEFINITELY change the guides as well and most likely the chain too. This is a Genuine BMW Timing Chain Tensioner with a two year warranty. Follow the specific BMW pattern shown below when tightening and torquing down the valve cover bolts. Gently snug the lines and then thread in the bolts for the rail's clamps. One the passengers side of the engine block, where the wastegate actuator sat, is the timing chain tensioner. Nice 89k miles already..not bad.I will be keeping mine around 150k - 200k or longer of the interior and exterior is not bang up or look old or outdated.if you know what I mean. Make sure the bottom left guide pin goes through the chain guide and not behind it when installing. These guides are made from plastic. There are some visual differences and the spring on the latest version also seemed stronger. The next thing in the way is the plastic engine cowl, located behind the engine. Read up on each generation and find out which one fits you best. Chain tensioner or guide problems: The chain relies on guides and tensioners to stay in place and work properly. Tighten all of the bolts to 12 N m. A pair of transmission lines need to be reattached to the oil pan. Similar to finding top dead center with the screwdriver, turn the engine over with something like a sharpie marker in the hole and watch for when the sharpie gets to its lowest point. Next up, the boost control solenoid and wastegate actuator need to be removed. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The real issue is if the timing chain skips a tooth and goes out of time and valves meet cylinder and then bye bye engine. 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. x |8>3V+iuV%2l18x936w8& G $m& c! MB i Pull back on the two tabs and pull the hose down to disconnect it. Near the back of the engine are two grey rectangular plugs for the oxygen sensors. A new cover will cost you $455. Rotate the crankshaft until the piston is at the top of its stroke, meaning the rod is pushed out as far as it will go, and neither camshaft is opening valves on the first cylinder. BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST, N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications, https://www.newtis.info/tisv2/a/en/fshaft/HtiBPV3K, https://www.newtis.info/tisv2/a/en/fshaft/HipcnQuO, https://bmwtechnician.com/2016/08/07g-chain-issue/, https://www.carcomplaints.com/news/2g-chains.shtml. The driver's side cover will have one extra push clip, just on the inside of the strut tower. 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. 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. On the reverse side of the coin, the guides rarely break on the GM 3.6L I spoke of above. Along with this, there's an extended warranty for the issue. I've got to figure there's a reason why they changed it. The two special bolts thread into the middle two spots at the back of the oil pan. If a chain stretches enough, it can come loose on one of the sprockets causing it to jump off of the sprocket. Thread the smallest cap into the hole just under the driver's side camshaft. Take the fuel rail and situate it on the valve cover. Next, seat them into their respective holes and drive in their fasteners with an E7 socket. If you needed to use the manual lockout on the side of the transmission to put it into neutral, back the bolt out with a 5mm hex wrench until the bolt isn't making contact with the lever. Thread two of the vibration dampener bolts into the mount and pull on them, wiggling it off of the crank snout. N20 timing chain issue. The 22V-119 safety recall covers all you need to know about this issue. That will be the transmission disengaging from park and going into neutral. Thread the new bolt supplied in the timing chain kit into the crankshaft and tighten it with a 22mm socket. Use an E6 socket to remove the three fasteners mounting the bracket to the valve cover and then move the harness towards the drivers side of the car, away from the engine. Also, have the new tensioner within reach once the tool is removed. Use an E8 socket to tighten the bolts securing the transmission lines. With your other hand, get the belt around the alternator pulley and the A/C compressor. Timing Chain Replacement Kit - N20/N26 - Genuine BMW Components - NOT for xDrive Models, var pricelevel1=""; var pricelevel2=pricelevel1.replace('+','');if(pricelevel1 != '' && pricelevel1 != 'Online Price' && pricelevel1 !='Racer Price') document.write(pricelevel2+' ');Price:$689.99. 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. The pre-2013 engines also have two vacuum lines on the passengers side of the cover that need to be disconnected before the cover can be removed. Improper oil maintenance, excessive heat, or even a faulty design from the manufacturer can cause the guides to wear quickly or crack. Take the vibration dampener and seat it on the mount, lining up the bolt holes. Slip the chain into the right-side guide, prying open the bottom just enough to get the chain inside. If the chain hasnt stretched, then something has happened to the guides. #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 Application : Applicable to BMW N20 and N26 engines (4 Cylinder Turbo), see more details for below description ; Package Include: 1x Camshaft Locking Tool ,1x Camshaft fixating base Tool ,1x Alignment Pin ,1x Chain Tensioner Content on bimmerfest.com is generated by its users. Grip the front of the engine cover and pull up to pop it off of the front locating pins. Engine Timing Chain Tensioner, Engine Timing Cover Plugs, Engine Crankshaft Pulley Hub Bolt, Oil Pump Sprocket Bolt, Vacuum Pump . 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. Then pull the balance shaft locking tool out from the oil pickup. The job of an engines timing chain is to keep all of the components of the engine in the right place at the right time. "> My 2014 X1 which I have owned since new has just under 50,000 miles. Doing so will unlock them and allow the cowl to be removed. It turns out a simple process issued by BMW is the fix. Set the bolts in a safe location after removal as they will be reused. The job itself requires three special tools specific to this engine. Luckily, the valves do not smash into the piston and destroy the engine (non interference). To replace the entire guide/chain/tensioner is either a costly fix with a shop or a longer one with you doing it at home. hbbd```b```Dp:"m D`R,$n,$oe`bd`\F?/ ,F A lot of BMW N20 engines have been plagued with the timing chain stretching as well a BMW N20/N26 Timing Chain Replacement DIY Part 1 - Removal & Disassembly (328i, 320i, 228i,. However, there are some gems out there that won't break the bank. Then, install the rubber gaskets into the valve cover. There are two long bolts supplied with the tool. Turn it toward the back of the engine to loosen it enough to spin it with your fingers. The guide is made of a faulty material that degrades much quicker than expected. All of the gaskets go on one way, so be sure that they are all in the proper orientation. 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. Unlike a timing belt which is a toothed high-quality belt made of rubber that runs outside of the engine; a timing chain is made of metal and runs inside the engine as it needs to be . Labor: $957 to $1,207. Would Replacing to old timing chain tension the updated one prevent the timing chain problems on the pre 14s before they start? Only tighten the bolts and pins finger tight. // Settings, Please back up before changing. The engine will cost over 10K and who knows where you will be when it breaks. Using a 16mm socket, remove the windshield wiper arms. Tighten down the intake pipe clamp with a flat-head screwdriver and fit the hood cable into the clips on the back of the airbox. If BMW knows they're not saying, but they did change the tensioner, didn't they? Have the new bolts at the ready and install the new panjack up the engine as much as needed to slide the oil pan into place. The guides are essentially a regular 75k mile maintenance item on those engines, while on our cars it's not a guaranteed failure. Timing chain systems, while safer than belts, are far more difficult to service. BMW claims that the breakaway torque for the crankshaft bolt is 600Nm. Several of the timing chain guide bolts are behind plugs Use an 8mm hex bit socket to remove the plugs. However, the timing chain is one of the major parts that will be affected. Refit the transmission's dust shield and secure it to the bell housing with three 10mm bolts. The recall isn't only for the faulty timing chain guides, but also for the timing chain itself stretching. Remove one of the E12 bolts holding in the engine mount arm and loosen the other two allowing it to move around. Will probably go CPO. 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. Use a jack on the transmission to lift the engine up and towards the passengers side to wiggle the pan out. Take a 5mm hex wrench and twist the locks in the center of the cowl 90 to the right to lock them, and the panel, down. Bn )ve $` A belt or chain skipping a tooth can cause the valves to hit the pistons, destroying the engine. To remove their electrical connections, pull back on their tabs and pull out on the connections. Pull the variable timing components off of the sprockets and then pull the sprockets off of the camshafts. It turns out a simple process issued by BMW is the fix. Free shipping. Pinch them together and then rotate the left-side guide back to its vertical position to lock them together. The rail itself is mounted to the cover by two clamps with two bolts each. 00. Next, take the flywheel locking tool and install it with the teeth facing upwards so that they mesh with the teeth on the flywheel. I know its apples to oranges, bringing in the Audi issue, but I thought it was relevant. HOW TO KNOW IF MY BMW WILL NEED TIMING CHAIN REPLACEMENT BMW F10 F11In this video we will explain if you have BMW F10 F11 5 Series how to know if your car is. Flip-up the lock on the plug, and connect the harness to the coil, then lock them once connected. The timing chain guides, as their name suggests, keep the chain on its proper path at the proper tension. 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. The characteristic whine that presages the failure of the chain indicates that it's likely the chain that breaks first, taking the guide out when it does. hb``` cbO Bringing the BMW community together. The drain plug on the engine is a 10mm hex. Replacing just the tensioner is a fairly easy job. If youre interested in more DIYs for your BMW, you can visit bmw.fcpeuro.com and subscribe to our YouTube channel. Take the brace and cowl cover, and set them onto their mounting points. Tighten the tools mounting bolts with a 10mm wrench. Flywheel lock was perfect and actually locked in tight. Move the remaining hose from the vacuum pump under the harness and around the engine. Next, sit the wiper cowl over the wiper motor and seat all of the locks into place. The guides are made from plastic. The timing chain guides, as their name suggests, keep the chain on its proper path at the proper tension. Disconnect the large line coming off of it and then use a short T30 socket to remove the three bolts mounting it to the head. Thread it in a few turns, move the guide, and check to see whether or not it pivots on the pin. Before threading those bolts in, get all of the fuel lines started on their injector's threads. Three 8mm bolts hold the inner panel to the car, while two locating tabs lock the rear in place. This is a Timing Chain Replacement Kit as referenced by BMW for the N20 and N26 engines found in many 2012-2016 BMW 228i/328i/428i/528i and Z4 28i RWD models. First, secure the two ground wires in between the injectors with their 8mm bolts. Next, fit the new oil pan seal into the channel in the oil pan. The labor alone will be between 10-15 hours, causing the cost of the job to be upwards of $5000. IBREY4. Towards the rear of the oil pan, on the drivers side is the oil level sensor. It is the N20 engine (turbo 4 cylinder engine) used in the X3 28i for certain X3s from 2012 to 2014 that is reportedly most prone to failure of timing chain guides. There are a lot of small pieces that need to be removed and unclipped before getting into the heart of the timing system. defaulttext:"DefaultText", // bottom of popin message Anyway, here is a. thank you for the link, seem the tensioner seem to be an easy replacement . Place the rubber covers on the nuts once they're tight. !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 Starting with the airbox, loosen the intake pipe clamp on the backside of the airbox with a flat-head screwdriver. The E8 bolt gets 10 N m, the T40 guide pin gets 14 N m, and the T45 guide pins get 24 N m of torque. Part of the timing chain kit is a new oil pump drive assembly. 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. Then, before connecting anything else, fill the engine with oil, and change the filter. Biggest solution to this is coding out auto stop/start. JavaScript is disabled. Like you alluded to, it sort of seems like a chicken or the egg sort of debate. Grab a set of channellocks and grip the knurled part of the tensioner. Get help answering any questions you have, How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). To get the oil pan out, you may need to disconnect the engine mounts and jack the engine up. The 22V-119 safety recall covers all you need to know about this issue. Grab a rag or six as there is fuel in these lines, and it is under pressure. ]o2V(`avCU`7E&8Dvv[Oj'.UjCyV}.4'8 d1MK``Phf3P4I3n`a```fbgYY9% The fuel delivery system can now be removed with the wiring out of the way. Just beneath the Vanos plug is the high-pressure fuel pump. Which broke first, the chain or the guide? Next, remove the six E8 bolts from the crank pulley using an E8 socket. The lower plugs get tightened to 50 N m, using the same 8mm hex or Allen socket. Secure it to the valve cover using its two T30 screws and torque them to 5.5 N m. The boost line clips into the heat shield below. The wiring harness from both of these plugs is clipped into the valve cover, below, and to the left of the fuel pump. Instagram: rjd_f30 | Current: EBII 2013 335i 6MT RWD & Sprint Blue 2008 Audi RS4 | Retired: 2013 328i, 2000 XTerra, 2022 Civic Si |. Timing Chain Kit For BMW N20 N26 Z4 320i xDrive X3 2.0L F10 F22 F23 F30 12-17. Use an 8mm socket to secure the three 8mm fasteners at the front of the cover. For those capable or bold enough to take on this job, there is a lot of monetary savings to be had. Use an 8mm socket to remove the grounds. In January 2015, BMW redesigned the timing chain components, which seems to have significantly reduced the chance of failure. With the rod in the cylinder, rotate the crankshaft clockwise. Very interesting story. Next, fit the engine mounts back into the subframe and thread in the bolts to get it in the right orientation. The engine needs to be able to rotate freely by hand to remove the timing chain and its associated components. The issue is so much of a tensioner issuer as it is the guide itself. First, take the chain, the three guide pieces, and the sprocket, and lay them out on a flat surface. Once the gear is sitting on the shaft, thread in the three T30 bolts used to secure the assembly to the block. Slide the front of the pan under the bumper and thread in one of the fasteners. When it reaches that point, install the fuel pump. BMW updated this starting in 2013, and any new timing chain replacement will need one of the new sprockets. If you don't have a torque wrench that goes that low, get the rod as tight as you can with your fingers. The bad news is that the parts are on back order and likely won't arrive until next week. Having a partner handy will help make this process easier. These 5 come in under $10,000. Biggest solution to this is coding out auto stop/start. And I assume "newer is better." Once the valve cover is seated, connect the vent line at the front of the cover. Have plenty of rags ready when threading the tensioner out by hand, it is oil fed and will leak oil upon removal. Then, use a 5mm hex socket or Allen wrench and turn the eight fasteners on the cowl 90 to the left. The smallest part of the brace is held in with six 10mm bolts. Tools required to service the timing chain system on the BMW N20/N26: Parts required to service the timing chain system on the BMW N20/N26: Steps for reassembling the BMW N20/N26 timing chain assembly: Step 1: Assemble the new timing chain assembly, Step 2: Install the oil pump drive assembly, Step 4: Install the timing chain assembly, Step 7: Install the timing chain guide pin plugs, Step 10: Install the new timing chain tensioner. The valve cover is secured to the cylinder head via twenty E12 bolts. Support the middle guide when the second bolt is removed; otherwise, the guide will fall into the engine. There are two clips holding the cowl on, on either side of the engine bay. BMW's love for aluminum bolts has caused more than a few issues. Use a 27mm socket to loosen the tensioner to finger tight. As you thread the tool out, watch the chain guide move. 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. %PDF-1.6 % Next, slide the wastegate actuator through its mounting bracket and secure it with its three 10mm nuts. Line up the new seal in the bore and tap it into place with a plastic or rubber mallet. If youre reading this DIY and have already drained the oil, there is a way to get the transmission into neutral without starting the car. However, there are some gems out there that won't break the bank. WHEN the guide breaks, the timing chain begins to stretch. var fname = document.getElementById("name_fs"); BMW N20 Timing Chain Replacement Torque Specs: BMW Oil Pump Drive Mounting Bolts = 10 N m or 7.4 lb-ft of torque, BMW Oil Pump Sprocket Bolt = 95 N m or 70 lb-ft of torque, BMW Timing Chain Guide Bolts = 10 N m or 7.4 lb-ft of torque, BMW Timing Chain Upper Guide Pin = 14 N m or 10.3 lb-ft of torque, BMW Timing Chain Lower Guide Pin = 24 N m or 17.7 lb-ft of torque, BMW Camshaft Adjusters = 55 N m or 40.6 lb-ft of torque, plus 55, BMW Crankshaft Bolt = 100 N m or 74 lb-ft of torque, plus 270, BMW Upper Guide Pin Plug = 25 N m or 18.4 lb-ft of torque, BMW Lower Guide Pin Plugs = 50 N m or 37 lb-ft of torque, BMW Vibration Dampener Bolts = 35 N m or 25.8 lb-ft of torque, BMW Camshaft Position Sensor Bolts = 6 N m or 4.4 lb-ft of torque, BMW Oil Pickup Bolt = 10 N m or 7.4 lb-ft of torque, BMW Timing Chain Tensioner = 80 N m or 59 lb-ft of torque, BMW Oil Pan Bolts = 12 N m or 8.9 lb-ft of torque, BMW Dust Shield Bolts = 10 N m or 7.4 lb-ft of torque, BMW Valve Cover Bolts = 9 N m or 6.6 lb-ft of torque, BMW Camshaft Adjustment Solenoids = 5.5 N m or 4 lb-ft of torque, BMW Boost Control Solenoid = 5.5 N m or 4 lb-ft of torque, BMW Vacuum Pump Bolts = 10 N m or 7.4 lb-ft of torque, BMW Fuel Injector Connections = 23 N m or 17 lb-ft of torque, BMW Fuel Rail Clamp Fasteners = 8 N m or 5.9 lb-ft of torque, BMW High-Pressure Fuel Pump Bolts = 12 N m or 8.9 lb-ft of torque, BMW High-Pressure Fuel Line Connections = 30 N m or 22.1 lb-ft of torque, BMW Wiring Harness Bracket Screws = 6 N m or 4.4 lb-ft of torque, BMW Oil Filter Housing Cap = 25 N m or 18.4 lb-ft of torque, BMW Spark Plugs = 23 N m or 17 lb-ft of torque, We hope that you found this detailed guide on how to reinstall the timing chain system on your BMW N20 useful and save a large chunk of money in the process. Then, lower the engine down onto the mounts. Read up on each generation and find out which one fits you best. The wiring harness for the last few plugs runs along the back of the valve cover and is secured to it via a bracket. A timing chain will stretch over time. This harness will swing around the front of the engine, with its bracket clipping onto the valve cover on either side of the high-pressure fuel pump. Then, using the two bolts used to remove it, slide and wiggle it into the front of the timing cover and through the small timing sprocket and the oil pump drive gear behind the timing sprocket. I say this loosely but "usually" the tensioner is located behind the timing cover. hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); Owner of a flat-six swapped 1998 Impreza 2.5RS and a 1973 Porsche 914. If you were not aware, there was a BMW N20 timing chain recall because this issue was so prevalent. The forward-most corner will also fit into a rubber mounting grommet. Amazon.com: SCITOO Fit BMW N20 N26 Engines Cam Camshaft Alignment Timing Locking Tool Come with 1 Chain Tensioner 1 Camshaft Locking Tool 1 Carry Case: Automotive - I ordered the flywheel lock and oil pump removal tool as a set from Amazon. Lastly, mount up the belly pan to the car. gmltheme: 1, // Change theme here (1,2,3) See what the wealthiest enthusiasts spent their money on to get the car of their dreams back in the 80s. The timing chain guides can now be loosened with everything else out of the way. Thanks for posting this. Im with you on that. The N20 is a 2.0L inline-4 single turbo engine that replaced the naturally aspirated 3.0L N52/N53. Next, plug in the high-pressure fuel pump and the boost control solenoid. Lastly, pull the four ignition coils out from the engine. The guide is made of a faulty material that degrades much quicker than expected. You may inspect the BMW N20 engine timing chain by peering through the oil cap. Hold the middle guide and the chain, pulling up out of the engine. .searchspring-product_finder.ss-targeted .ng-scope:first-child {display: block !important;}. This engine component is designed to last, but it is subject to wear and . 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) Then, use a flat-blade screwdriver to open the clip securing its wiring to the valve cover, and fold the plug and its harness away from the engine. Automotive Replacement Engine Timing Part Sets & Kits; Automotive Replacement Belts, Hoses & Pulleys; Pull up on the chain while pulling the sprockets off. 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