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. I would DEFINITELY change the guides as well and most likely the chain too. The large breather hose that runs between the camshafts needs to be disconnected from the cylinder head. On the reverse side of the coin, the guides rarely break on the GM 3.6L I spoke of above. Posted on August 7, 2016 by bmwtechnician. My 2014 X1 which I have owned since new has just under 50,000 miles. 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) BMW just redesigned the n20 timing chain related components and my 328i would be one of the first to receive the update. 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. Very interesting story. The vacuum pump sits at the back of the valve cover and runs off of the intake camshaft. The Fora platform includes forum software by XenForo. A fuel line is mounted to the oil pan just above the oil level sensor. 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.
Head into the trunk and locate the battery.
Slide the front of the pan under the bumper and thread in one of the fasteners. The wiring harness for the last few plugs runs along the back of the valve cover and is secured to it via a bracket. If it doesnt, recheck the previous steps. TSRVSiteSettings.SetOptions({
Timing chain guide failure at 74,100 miles. Some models with the N20 were recalled while others fall under an extended warranty. @import url("/site/css/styles-bryson-2023-03-06.css");
A belt or chain skipping a tooth can cause the valves to hit the pistons, destroying the engine. The Fora platform includes forum software by XenForo. Disconnect the wiring from both of them. Is it possible to change the guides without a mechanics 12hrs of labor? $75.19. In the middle of nowhere without cell service? The sound deadening foam sits atop the engine, and under the plastic cover matches the top of the engine, which means that when it is sitting in the right spot, it should be relatively flat.
Photos: BMW Owner Reviews Write a Review Kathy Rogers on March 10, 2022 You may inspect the BMW N20 engine timing chain by peering through the oil cap. Posted on August 2, 2017 by bmwtechnician. Find a non-dealer service center to change it, ASAP. The dealer will charge you between 10-15 hours to complete the job. The guide is made of a faulty material that degrades much quicker than expected. Next, unplug the mass airflow sensor next to the clamp and unclip the hood release cable from the back of the airbox. Take the vibration dampener and seat it on the mount, lining up the bolt holes. Pop these clips out, and the cowl can be pulled off. Bringing the BMW community together. Use a socket to remove them and set the brace aside. You run the risk of severely hurting the engine if any of the steps are not done correctly, but if you follow along with our DIY, you'll have the entire process laid out step-by-step. So much so, that BMW has acknowledged this and issued a recall.
However, if you were to go to a dealership for this job, out of the 7 year/70,000 mile warranty, you'll be on the hook for more than that. 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. 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. Pull the variable timing components off of the sprockets and then pull the sprockets off of the camshafts. The Cheapest, Most Reliable Mercedes-AMG Cars Ever, Period!
Take a long screwdriver or a straightened piece of a wire coat hanger and stick it into the front cylinder through the spark plug hole. As it stretches, the chain gains play, allowing it to move around inside the timing cover. 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. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! There are some visual differences and the spring on the latest version also seemed stronger. The right and left side guides get attached near the bottom of each other. Next, refit the two-piece lower cowl. Follow the specific BMW pattern shown below when tightening and torquing down the valve cover bolts. The guide is made of a faulty material that degrades much quicker than expected. Next, fit the engine mounts back into the subframe and thread in the bolts to get it in the right orientation. 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. Use the straight sections in the seal to determine where it should sit in the pan. Push down on the tab and pull the plug off. 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. 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.
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If i SAW ANY TENSIONER PIECES, I'd put a new chain and guides, there is a TSB from bmw that shows to replace these guides and chain for vehicle made before 03/2013 . Use a 27mm socket to loosen the tensioner to finger tight. The BMW N20 timing chain is replaced because it wears out quickly for the following reasons: The tensioner has deteriorated, as a result, the timing chain of the BMW N20 does not stretch well, slips, and the valve timing is disturbed. At this point, you can start the car. Buying a cheap European luxury car can be intimidating. If a chain stretches enough, it can come loose on one of the sprockets causing it to jump off, or the sprocket will move more than the chain does. ULk0l^|.ZnFwg#{. You run the risk of severely hurting the engine if any of the steps are not done correctly, but if you follow along with our DIY, youll have all of the steps laid out in front of you. The locking pin with the yellow cord attached to it should slide into the space that the plug occupied if the car is at top dead center. Part of the reason Im so interested in learning about this platform.
Youll need to reach up on the passengers side of the transmission with a hook or pick tool and pull the plug out. You can use a flat-head screwdriver, youll run the risk of scoring the aluminum head. Make sure the mark on the dampener makes two revolutions as that will be one full revolution for the camshafts.
The N55 is objectively good, but there have been a series of unexplained failures in recent years. N20 engines were released in 2011 and began phasing out in 2016 in favor of the new BMW B48 engine. Steps for reassembling the BMW N20/N26 timing chain assembly: Step 1: Assemble the new timing chain assembly The new timing chain assembly is shipped unassembled and needs to be snapped together before being installed. However, if you were to go to a dealership for this job, out of the 7 year/70,000 mile warranty, youll be on the hook for more than that. Some of the bolt threads may catch the cylinder head, so if a bolt wont budge, back it out with your fingers. Luckily, the valves do not smash into the piston and destroy the engine (non interference). The biggest piece of the CTA balance shaft tool is used to lock the oil pump in place so that the sprocket bolt can be removed. Use a T60 socket to remove the oil pump sprocket bolt. On either end, there are two push clips that lock it into place. There are a lot of small pieces that need to be removed and unclipped before getting into the heart of the timing system. The job itself requires three special tools specific to this engine. Horizontally opposed views, only. Check these out to see just how in-depth we go to make them. Then, lower the engine down onto the mounts. ;WTK[DjG-nmlCh2]t]zwAp0-VnXC~otv@U+y_b9(oW*WV4aB>c[lJ9mU(G$J%'l,\Lr*%^rxBMQK8I#n}%
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Each piece will slot into the middle cowl piece first, and then three plastic locks can be twisted into place with a 10mm socket. $(window).ready(function(){ $("body").getmelikes({
Before the crankshaft bolt can be removed, the vibration dampener needs to be removed. A lobe on the exhaust camshaft interacts with the high-pressure fuel pump to send fuel into the engine. There are two long bolts supplied with the tool. Tighten the tools mounting bolts with a 10mm wrench.
Then, use an 8mm socket to tighten the rod to 0.6 N m or 5 in-lbs. These are all pretty standard specs for most modern BMW engines. The tensioner keeps the timing chain tight and in place as the engine runs. TIMING CHAIN KIT For BMW ENGINE CODE: N20B20A, N20B20B, N26B20A 228i 320i 328i 2.0L. Part One of Two: There is one major Achilles heel with the BMW N20 and BMW N26 engines, the timing chain. Using the Allen bolts supplied in the tool kit, secure the cam timing tool to the front of the engine. Using a 10mm wrench, remove the negative cable from the battery, breaking the electrical circuit. Next, grab the large green CTA timing tool and set it in front of the camshafts. Next up is the fuel rail plug. Adjust the tool as necessary and then lock it down by tightening the two bolts with a 13mm wrench. 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. If not addressed, this issue can lead to major engine problems. Reinstall the M6 10mm bolt into the oil pickup and tighten it to 10 N m. Lastly, wiggle the flywheel locking pin out of the transmission and reinsert the plug. Tightening this bolt will thread it up into a small lever coming out from the transmission.
Find many great new & used options and get the best deals for OEM Timing Chain Kit & Oil Pump Drive Chain set For BMW N20 N26 2.0L F10 F22 F30 at the best online prices at eBay! They've gone through like five variants of all those parts apparently. If you were not aware, there was a BMW N20 timing chain recall because this issue was so prevalent. Place the wiper arms on the studs and tighten down the nuts with a 16mm socket. Next, install the CTA balance shaft locking tool used to lock down the sprocket. Use an E8 socket to tighten the bolts securing the transmission lines. Along with this, there's an extended warranty for the issue. The outer panel is secured to the car with twenty 8mm bolts. For a better experience, please enable JavaScript in your browser before proceeding. Slip the drive onto the camshaft and then feel around with the bolts until you locate the threaded holes and can secure the pump to the cylinder head. There are twenty-two (22) E8 bolts that secure the oil pan to the engine. Hit the dampener with a mallet or hammer to loosen it up. To remove their electrical connections, pull back on their tabs and pull out on the connections. JavaScript is disabled.
Start by lubricating the inside of the new crankshaft seal with oil. Release the hold on the tensioner once all of the ribs in the belt are sitting in their grooves. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. (window.zIP=function(e){o.apply(null,arguments)},(n=new XMLHttpRequest).readyState?n.onreadystatechange=function(){"loaded"!==this.readyState&&"complete"!==this.readyState&&4!==this.readyState||o(this.responseText)}:(n.onload=function(){o(this.responseText)},n.onerror=function(){o("")}),n.open("GET","//api.ipify.org?format=json&callback=zIP",!1),n.send()):o()})({"id":"2801","key":"43HU93QZFAWW","mode":"ENABLED","debug":false,"hideHello":false,"express":true,"checkout":false,"estimator":true,"pdp":null,"redirect":{"checkout":"","express":"Loading Secure International Checkout"},"ip":"172.71.178.103","site":{"currencyCode":"USD","countryCode":"US"},"item":{"internalid":"59348","name":"Timing Chain Replacement Kit - F22 228i, F30 328i, F32 428i, Z4 28i N20/N26 RWD","url":"http://www.bimmerworld.com/Engine/Camshafts/Timing-Chain-Replacement-Kit-N20-RWD.html","price":{"list":"$689.99","sale":"[Error processing dynamic tag getCurrentAttribute('item', 'pricelevel') : record kit 59348 not found]"}}}, [])
Probably, but as long as you catch it before your engine grenades, you're better off waiting until it's necessary and upgrading to new ones at that point. However, the timing chain is one of the major parts that will be affected. Just beneath the Vanos plug is the high-pressure fuel pump. x |8>3V+iuV%2l18x936w8& G $m& c! MB
i hbspt.cta._relativeUrls=true;hbspt.cta.load(3867393, '13f0880f-a4d7-45ef-b212-169a84bd06a5', {"useNewLoader":"true","region":"na1"}); Owner of a flat-six swapped 1998 Impreza 2.5RS and a 1973 Porsche 914. Towards the rear of the oil pan, on the drivers side is the oil level sensor. As you thread the tool out, watch the chain guide move. Gently snug the lines and then thread in the bolts for the rail's clamps. The passenger's side cover will have one push clip near the fender and will clip onto the strut bolts. The point of the rod is to show you when cylinder one reaches the top of its stroke, indicating that it is at top dead center.
BMW N57 Automatic Timing chain & con-rod bearing shells replacement. For a better experience, please enable JavaScript in your browser before proceeding.
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K} ? So yes replacing the affected parts is a good idea as preventive maintenance, and replace the timing chain along with the guides as well. Have plenty of rags ready when threading the tensioner out by hand, it is oil fed and will leak oil upon removal. Rub some oil on the Valvetronic plug on the cylinder head, as this is the first thing the cover comes in contact with, and it needs to slide over it.
The thickest part of the bracket will go towards the passenger's side of the engine. What's in question in this thread is whether a bad chain tensioner might be the cause of the chain failure, and whether changing the tensioner might prevent that.
A flat-blade screwdriver can help push the tab in while you pull on the plug. Grab your keys, head into the car, and turn the engine over with the starter to build oil pressure in the engine. The guides are made from plastic. Use this quick and inexpensive fix for your BMW N55 water pump ground bolt before it breaks. });
m8$`f$k3B&84vR~lAjD? Tighten the nut used to secure the mount arm to the mount with a 16mm socket and an E12 socket for the three bolts securing the engine mount to the subframe. Was replying to a comment and figured I share my experience with everyone here. You're guys' outlooks have me wondering what the highest mileage N20 out there is. The engine timing chain is very weak - it stretches over time, and ultimately snaps . The gear may need to rotate to align the flats on the shaft and inside the gear to slip onto the shaft. One of the plugs will have only four pins while the other has five. The N20 and N26 engines are known to have a problem with the timing chain and guides that were originally installed at the factory. 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. This job requires several specialty tools and a wealth of wrenching experience. 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. First, secure the two ground wires in between the injectors with their 8mm bolts. This is my first German car and all of my prior experience is with GM/Cadillac products, specifically the 3.6L global V6 that is also known to have chains stretch/guides break. The timing chain guides can now be loosened with everything else out of the way.
Thniking Audi A5 Sportback or 4-series Gran Coupe.
Which broke first, the chain or the guide? Have even more rags ready for the fuel that will come out of the lines. Pull the negative cable off of the battery afterward. 2500-3500 is a fair price for this job. 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. I've also been told that in most cases you can hear the whine well in advance to it breaking. Next, the boost control solenoid can be mounted. Next, loosen the four top bolts on the cam lock tool, and remove the two mounting bolts. The bolt behind the upper plug can be removed with a T40 socket, while the bolts behind the lower plugs need a T45 socket. Use a hammer and chisel or punch to knock out the crankshaft seal.
Use an E8 socket to remove the single bolt holding each of them in and then pull them out of the cover. The timing chain appears to be the number one fault on the N20, however, this issue is mostly prevalent on engines and vehicles produced prior to 2015. Take a 16mm socket and rotate the ratchet to the right to pull the tensioner back. Missing something during reassembly will only cost more time and headaches.
Timing Chain Module Overview Replace the following components in the illustration. Eventually it breaks, taking your whole engine with it. According to the timing. Underneath the plastic engine cover, is a foam noise-reduction pad. The 22V-119 safety recall covers all you need to know about this issue. These 5 come in under $10,000. 222 29K views 1 year ago This is a step by step guide how to remove the timing chain. 320 0 obj
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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. Use a 14mm wrench to tighten the lines to the injectors. All of the gaskets go on one way, so be sure that they are all in the proper orientation. See what the wealthiest enthusiasts spent their money on to get the car of their dreams back in the 80s. Support the middle guide when the second bolt is removed; otherwise, the guide will fall into the engine. 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. Clean the camshaft angle sensors of any metallic shavings and reinsert them into the timing cover. When installing the valve cover, be very careful not to crack it. endstream
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And I assume "newer is better." The issue isn't so much of a tensioner issuer as it is the guide itself. Use a 10mm socket to remove the bolt on the oil pickup. This motor is in just about all GM vehicles and product lines currently, no exaggeration. Next, compress the chain tensioner and use the pin provided in the tool kit or an Allen wrench to lock the tensioner and guide out of the way. There are three bolts holding the oil pump drive assembly into the engine. 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. Reinstall the timing chain guide pin plugs to prevent oil from leaking out of the engine once it is back together. Manufacturer Part Number.
The fuel rail is secured to the valve cover via four E8 fasteners.
Depending on the parts in stock and who is available to do the job, they could have the car upwards of a week. October 13, 2022 by Carolina. Remove the timing chain tensioner tool, but don't release all of the tension from the rail. If the chain hasn't stretched, then something has happened to the guides. %%EOF
With that said, it is a doable job for a DIYer if youre careful enough. Next, slide the wastegate actuator through its mounting bracket and secure it with its three 10mm nuts.
Take a look at the timing chain sprocket now that its out of the car. Turn it toward the back of the engine to loosen it enough to spin it with your fingers.
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. Next, move to the back of the cover and thread in a fastener there. Push in the tabs on the plugs and separate the connections.
Next, fit the new oil pan seal into the channel in the oil pan. Remove that with an E8 socket as well. It is nearly impossible to get a look at it with a camera, so youll need to feel around until you find it.
Horizontally opposed views, only. If your vehicle happens to fall under an open recall, get in touch with the BMW customer service line at 1-800-525-7417. i think if the vehicle is made before 03/2013 then is a good idea to do so, I changed it at low mileage on my X4 with the N20 motor. Use an E8 socket for the fuel rail clamp fasteners and torque them to 8 N m. Plug the rectangular connector on the wiring harness into the back of the fuel rail. Pull up on the chain while pulling the sprockets off. Use a 27mm socket to tighten the tensioner to 80 N m. Loosen the engine mounts and jack the engine up off of the mounts.
BMW's love for aluminum bolts has caused more than a few issues. Clip the actuator rod to the wastegate once the actuator is secured. Then thread in the new oil pump sprocket bolt by hand before tightening to 95 N m with a T60 socket. 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. The engine needs to be able to rotate freely by hand to remove the timing chain and its associated components. Lastly, install the strut top covers. The timing chain can develop slack that causes rapid wear on the sprockets and plastic guides. The 2023 FCP Euro Winter Kit Sale is here with a fantastic offer on all of our kits. Take the brace and cowl cover, and set them onto their mounting points.
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Then connect the intake pipe to the airbox and plug in the mass airflow sensor. Before fitting the camshaft timing adjuster to the valve cover, wipe some fresh oil around their o-rings. Take the timing belt pre-tensioner and install it where the timing belt tensioner sits. Then grab it by the right side and pull up to pop it off of the last pin. Remove them with a flat-head screwdriver and pull the cowl off. This engine component is designed to last, but it is subject to wear and . Thread two of the vibration dampener bolts into the mount and pull on them, wiggling it off of the crank snout. Use a T30 socket to remove them and then pull the assembly out the bottom of the engine.
The airbox is secured to the car with three locating pins. The job itself requires three special tools specific to this engine. A forum community dedicated to BMW owners and enthusiasts. If the chain hasnt stretched, then something has happened to the guides. Content on bimmerfest.com is generated by its users. Four large E20 bolts mount the strut brace to the car, one on each strut tower and two against the firewall. This harness is clipped to the valve cover at its lowest point. Pull your hand off of the guide when you feel the tensioner makes contact with the guide. The first bolt goes in just above the front subframe, and the second bolt goes in above the oil level sensor, which can now be reconnected to the car. Use a T30 bit to remove the two fasteners mounting the solenoid to the engine. Sponsored. Remove whatever you have holding the flywheel locking tool in place and pull it off of the transmission.
For BMW 428I GRAN COUPE 428i XDrive 2.0L TURBOCHARGED 2.0L Replacement Timing Chain Kit. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Table of Contents show. #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 When it starts to move, put one hand in the engine to keep the pressure on the rail as you back out the tensioner tool with the other. The lower plugs get tightened to 50 N m, using the same 8mm hex or Allen socket.
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. Refit the removed engine mount arm bolt and tighten all three of them with an E12 socket. This is a Genuine BMW Timing Chain Tensioner with a two year warranty. Next, remove the six E8 bolts from the crank pulley using an E8 socket. $10998.
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Fall into the timing chain recall because this issue the electrical circuit % % EOF with that said, is! Need to be removed and unclipped before getting into the channel in the engine needs to be to... Engine problems stock and who is available to do the job, could. The GM 3.6L I spoke of above, youll run the risk scoring... Wrenching experience because they are all in the high-pressure fuel pump out in 2016 favor. More time and headaches me wondering what the wealthiest enthusiasts spent their money on to the. Remove the bolt threads may catch the cylinder head guide when the second bolt is removed ;,. Back of the cover and runs off of the transmission with a camera so. The car the solenoid to the valve cover at its lowest point tensioner with a fantastic offer on all the... Harness is clipped to the turbocharger and tighten all bmw n20 timing chain tensioner replacement of them with a 10mm wrench remove... 111 Peter Street, Suite 600, Toronto, Ontario, M5V,. To crack it chain too some steps aren & # x27 ; t covered details... Then connect the intake pipe to the oil pan just above the oil pan, the. A week ready when threading the tensioner keeps the timing chain Kit bit to remove them an. Mechanics 12hrs of labor ( fname ) ) { then connect the intake to clamp... Bmw has acknowledged this and issued a recall out by hand before tightening to N...
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