What Causes A Timing Belt To Break

In an interference engine the timing belt or chain is also critical to preventing the piston from striking the valves. A Nissan owner. So if the valve covers are the culprit of the oil leak, AND you are due, or close to being due for the timing belt replacement the second mechanic is looking out for your best interest. With the recommendation of the mechanic, I had the water pump replaced then as well. First of all, we need to point out that every car is a bit different. If the engine is equipped with a hydraulic timing chain tensioner, the noise may disappear or lessen as the engine oil warms up and the tensioner removes some of the slack. The Main Causes Timing Belt to Break is :-1. I had a timing belt break on my 1997 Ford Escort – considered myself lucky getting 90k out of that one. That’s some serious distance on a bicycle drivetrain! I just put a new belt on to the existing chainring/cog, so it will be interesting to see whether this belt wears quicker than the first. Second way. A cracked belt will eventually break. A Nissan owner. Disconnect the exhaust OCV (Oil control valve) connector (A). not checked at full services. V -Belt Troubleshooting Guide L is te d h e re a re s o m e o f th e m o re c o m m o n V -B e lt s y m p to m s a n d c a u s e s o f b e lt fa ilu re. OUCH! The extreme frame damage pictured was resultant of final drive chain derailment despite the use of a Chain Watcher. To do this,. So here we are, "next time" is now. A broken timing belt can indeed lead to the complete destruction of the engine. A Timing Belt will rarely just snap or break in half. From this point the engine's timing may become erratic and cause cam and crank sensor fault codes; if the vehicle continues to be driven, the chain can snap causing similar damage to that of a snapped timing belt. A broken engine timing chain will result in severe engine damage. Put a new timing belt on and do a compression test on the motor. , that you consider as a dissatisfaction, the door to our Customer Service is always widely opened for you. I drove the car out of the garage and it seemed to feel very sluggish. Some cars also have a timing belt to drive water pumps and oil pumps to the engine and other important parts. About Hyundai Timing Chain, Engine Timing Chain. I've also heard that in order to replace the timing chain you have to lift the engine out of the car so it will cost a few thousand bucks. In severe cases, the belt can get pulled into the timing belt drive causing catastrophic engine damage. Stretched timing chain symptoms • Noise. The timing belt or timing chain plays a big role in this. Most commonly you will notice symptoms while trying to start your car or if it's making funny noises and acting-up while running. During it's 12 year rein, the 22R single row timing chain system has had a consistent problem of failure at higher mileage. It is time to replace them both. You may have to register before you can post: click the register link above to proceed. The tension and general condition of the belt should therefore be checked at least monthly. If it's one of the interference engine, when the timing chain breaks the engine needs to be rebuilt and that will cost a lot of green bills. 9 CDTI 150 - Damage? If this is your first visit, be sure to check out the FAQ by clicking the link above. But just because it breaks doesn’t mean your engine will be ruined. It is easy to get off by a tooth though so count twice and install the belt once. If the timing belt snaps, the vehicle will have to be towed. ½ of the belt had worn away and the remaining part of the timing belt started to run off the camshaft sprockets. Shifting under load forces the plated outward and eventually one or more is hanging half off the pin. Replacing your timing belt is cheap insurance against costly engine damage. Of course, cracks are still a concern, but modern belt material doesn't crack as often as old belts did. A Timing Belt will rarely just snap or break in half. So if the valve covers are the culprit of the oil leak, AND you are due, or close to being due for the timing belt replacement the second mechanic is looking out for your best interest. But my second belt recently broke at 180,000 and was told by dealer and a number of well respected Toyota specialized shops that the 4. When compared to the old one it was the same size. If the engine seized because it overheated then your are going to have to do more than replace that timing belt. Hi I have just had a new timing belt fitted to my 2000 Astra Coupe, the care was running perfectly before i had it done. Extended oil changes combined with a weak design, may cause this engine to jump timing at low mileage. Nicole Mahoney: 00:23 Hello listeners, this is Nicole Mahoney, host of destination on the left. If the temperature gauge was pegged and the car shut off, your water pump likely died. Changing your timing belt on a regular basis is. This high tension combined with a tight fit of the timing belt and timing belt pulley teeth causes the tensioned timing belt to resonate like a plucked guitar string. So far, I have 40 hours on this mower, it has been in the shop twice, the first time for the blade drive belt, the transmission pedal fell down onto the foot rest, and the parking brake would not engage. I know that if it breaks, my engine is most likely ruined. Tighten the lock bolt B. Upgrade to the Deluxe TDI timing belt kit that comes with everything you need to replace your VW timing belt and gain maximum peace of mind! Just choose your car from the menu on the left. So, just replace it every 90,000 or 105,000 miles and you'll never have to worry about it. As belt failure is extremely rare even at high miles, the OP needs to check all components for leakage or mechanical failure. 8 tdci also, and to release the tension on mine you insert a bolt into a thread on the. I know Honda underestimates the life expentancy by quite a bit (as they should to make sure people don't put it off too long!) but I am just wondering how long people have acutally gone on a belt before it broke. Also, items like leaking valve covers, power steering pumps and A/C compressor oil can cause the rubber to swell, shrink or crack. 9 CDTI 150 - Damage? If this is your first visit, be sure to check out the FAQ by clicking the link above. Even though the belt is a notched belt, they do stretch just enough to make the timing not conform to smog specs. Valves get bent most often on vehicles that have had a timing belt break or a timing chain jump a sprocket. If the belt breaks, will the pistons hit the valves(and therefore damage the valves and pistons)?. This was in a 2006 VW TDI. The parts costs on the other belts is minimal but the labor to get to them is substantial (mostly the same labor as replacing the timing belt). (I've now promoted myself to novice mechanic from. If it's the kind that can break belts (this is called an "interference" engine) - then a few out of 100 will not bend valves. The reason is that Kia engines are “ interference engines ” 99% of the time, any money you spend trying to fix it is going to be a waste. And that's the purpose of the timing belt - to keep the timing of the two separate so that doesn't happen. 0T engine is in VW and Audi vehicles from 2005. If you water pump died, then your timing belt gave out. The belt’s load-carrying capacity is then no longer assured and it can tear. Some engines have multiple timing marks that can cause confusion if you don’t know which ones to use or how to line them up. When this occurs it can cause the oil pressure in the engine to fall drastically and the change in oil pressure will lead to a complete engine failure , which will then. If the tensioner has no oil pressure, the belt will become loose and possibly disengage from the pulleys and/or break. In fact, a V-belt that is over-tensioned by 10 percent can produce a 10 percent reduction in bearing life of the motor, and over-tensioning is also the leading cause of V-belt failure. AutoZone Repair Guide for your Engine Mechanical Engine Mechanical Components Timing Belt 1. So if the valve covers are the culprit of the oil leak, AND you are due, or close to being due for the timing belt replacement the second mechanic is looking out for your best interest. This sound can also indicate low oil pressure, which in turn can affect the timing belt. I managed to pull off the highway and get to a service station, where it was suggested that it may be the timing belt. using a sharp object such as a screwdriver. As technology has improved, many manufacturers recommend intervals up to 100,000 miles. Many engines with worn timing devices jump time when they're shut off, which often causes a slight snap-back in engine position as the engine ceases rotation. Usually something such as a seized idler or leaky water or seized water pump will CAUSE the belt failure. $30M BMW Mini Cooper Timing Belt Class Action Settlement Reached January 7 2016 - by Lucy Campbell Santa Clara, CA: A $30 million settlement has been tentatively approved potentially ending a defective automotive class action lawsuit filed against BMW North America. This would alow the timing chain to jump, which causes the piston to contact the valves in turn bending them. Your engine's timing belt is the most important maintenance item in your car. Bad Timing Belt - The timing belt needs to be in superb condition. CAUSES • Excessive tension. and cam timing are set. If you want to avoid costly downtime, insist on Genuine Cummins Belts. Why Replacing A Timing Belt Is So Important. Also, the valves can bend and ruin the engine, which can result in engine replacement. The engine may continue to run but will experience a loss of performance because of the altered valve timing. Timing chain noise is most noticeable on cold startup when oil pressure and flow is at its lowest. This sound can also indicate low oil pressure, which in turn can affect the timing belt. Hi I have just had a new timing belt fitted to my 2000 Astra Coupe, the care was running perfectly before i had it done. T h is is in te n d e d to h e lp y o u tro u b le s h o o t s o y o u c a n a d d re s s th p ro b le m a n d c o rre c t it. Just like your heart, if the engine jumps time, it will run poorly or fail. After it starts giving a misfire code, there is a big change of timing chain failing. A noticeable noise may result. Worn Out Spark Plugs. What can cause a timing belt to break or fall of? ? Wow! you are getting great answers. Subaru timing belt recommendation is at 105K but it’s not common to have to replace the timing belt before this mileage due to oil leaks from either the cam seal’s or front crankshaft seal. I also am on my 2nd broken bolt following a timing belt change (self-performed) and assumed I must have done something wrong. Fit, in this case, means a cover that gives clearance of several inches to both the gear and the attached belt. So if you notice the noise, and misfire codes change the chain ASAP cause it can break. This can be done by getting familiar with the timing belt, its functions, and knowing when there is something wrong with it. The most recently reported issues are listed below. Changing your timing belt is not a small task, and it will not be identical to your car (unless you drive a 4cyl 626, mx6 or ford probe with an FS series engine). The belt runs on a pulley from the crankshaft. And that means a full engine rebuild. It is EXTREMELY rare for a Honda timing belt to break before it's reccommended replacement time. Replacing a timing belt should not be difficult. Any chance that the valves are not damaged? VWVortex. Is there a common problem with these cars that causes belt failure?. A Question of Timing I t looks a lot like the belt that holds your pants up. After a certain run time, belt teeth could be used, although they should retain their original size and form. Stretching, in turn, causes other problems. Fluids can also cause the bond between the metal and rubber to weaken. With the heat and. If worn to the point that the timing belt can no longer grip the gears, it will slip and cause the pistons and valves to pump out of sync. The relationship between the moving parts of an engine is engineered to extremely high tolerances, kept in check by very. Why Replacing A Timing Belt Is So Important. Thanks for the A2A, There are quite a few options. Also, note that we have a valve guide seal replacement guide which may be helpful. Late timing alone doesn’t cause an engine to overheat by more than a few degrees, but when coupled with other problems, it can bring the engine temperature to a critical point. If the temperature gauge was pegged and the car shut off, your water pump likely died. Timing Belt Replacement – Find a Meineke Shop in Your City. If your pushed for cash you could probably put it off for a little bit (and I doubt anyone here would recommend that you do so), but there is a reason they say to replace it. Now, timing belts are known as common factors in Audi A4 engine problems. A timing belt will generally start to produce a high pitched, squeaking, noise before it fails. What Causes a Car to Squeal? When a car is squealing the most likely culprit is your belt system. First of all, we need to point out that every car is a bit different. The timing belt is a very strong metal-reinforced belt with rubber on the outside. Probable causes: 1) Straight cord line rupture: belt was crimped before fitment; 2) Raffled cord line rupture: foreign object between the belt and pulley will break the tensile cords; or belt was twisted over 90° or turned inside out before fitment, or forced on a pulley e. Although it's not an interference engine, so you wouldn't trash the engine replacing it. Can an accident cause the timing chain in my Dodge Ram 1500 to break? 11 Answers My son rear ended another vehicle with it. Timing of the spark is also controlled electronically. Meaning you WILL destroy numerous valves and damage pistons if the belt breaks. I removed the covers to expose the timing belt and found that it did not break but instead skipped some teeth. The old rule was every 60,000 miles. Usually something such as a seized idler or leaky water or seized water pump will CAUSE the belt failure. Doing 70mph on way home from work and *boom* loud screeching noise like a loose belt, dashboard check lights lit up and came to a rolling stopdead. This was in a 2006 VW TDI. Our Reviews. Another problem is a seal that starts to leak after timing belt replacement. Install the idler. 3110 NE Minnehaha St. If the timing belt breaks, it can cause the valves and the pistons to collide. Signs of wear: Worn teeth, fraying, engine backfires or stops. Improper belt tension is the most common and obvious cause of slip, which generates unwanted heat. Sooner, before complete failure, is always better with such an essential part as the Nissan timing belt, especially since in some cases, the failure of the timing belt can cause significant damage to other combustion system parts. When the water pump seizes, the gears stop turning with a strong force that will almost always break the timing belt. This sound can also indicate low oil pressure, which in turn can affect the timing belt. Tying it in with the timing belt Water pumps serve as an idler pulley on many engines equipped with timing belts and, due to accessibility issues on many transverse engines and the labor operations involved in replacing the timing belt (especially on imports), it’s cost-effective to invest in a new water pump as well, especially if the pump. Hi Brian, The Timing chain is used on the 3. The mass flow sensor and oxygen (O2) sensors are key parts of this system, and a malfunction in either can cause the light to come on. Usually something such as a seized idler or leaky water or seized water pump will CAUSE the belt failure. Over due Timing Belt as overight the warranty period. You can book online and our mobile mechanics will come and do the work on your doorstep, one way to make your life a little easier!. i have a 1998 dodge neon that had the timing belt break on me ,i replaced the belt and the car started but it will not stay running or if i can get it to idle it idles real rough,if i push on the accelerator it runs smooth,when i pull the plugs i have black soot on 3 of the plugs,could i have bent the valves when the belt broke or is this a. " If this happens, all of a sudden your spark plugs and your valves aren't dancing to the same beat, and your engine will run terribly, if at all. The function of a timing belt or chain is to open and close the engine's valves in sequence and at the correct time. Similarly, in your MINI, when the timing chain loosens enough or stretches enough to snap, a chain reaction of devastating events can occur, including critical engine damage that will likely result in expensive repair costs. If the tensioner breaks, the timing belt can slip or break. Any amount of slack causes a decrease in performance, and in most cases a broken timing belt will cost you an engine, or at least an expensive repair. If it is contaminated badly enough then it could snap. Usually something such as a seized idler or leaky water or seized water pump will CAUSE the belt failure. If you water pump died, then your timing belt gave out. A broken timing belt typically causes the valves to hit the tops of the pistons, bending the valves and/or destroying the pistons. Timing belt done at the same time - $400 for the full kit. It's a piston that hits the valve and causes it to break. If the belt breaks, will the pistons hit the valves(and therefore damage the valves and pistons)?. So if the valve covers are the culprit of the oil leak, AND you are due, or close to being due for the timing belt replacement the second mechanic is looking out for your best interest. Broken timing belt. The chart below shows some possible signs of belt problems and solutions. The most recently reported issues are listed below. Extended oil changes combined with a weak design, may cause this engine to jump timing at low mileage. Belt damage can occur from: n Too much or too little tension n Vibration n High temperature n Belt misalignment When replacing any timing component, including tensioners, always refer to the vehicle’s service manual. What Are the Causes of Timing Chain Failures? Tension. The Kia Optima Timing Belt synchronizes the timing of your engine's valves with that of the crankshaft,. If a timing belt fails, your car will not start. Trust Gates power transmission solutions to provide the reliability, efficiency, and precise motor control your industrial drive applications demand, with leading solutions for your commercial HVAC cooling fans, pump drives, linear positioning applications, bucket. The idler bearings and tensioner are key components in a timing belt job as they are usually the cause of failure. Of course that was several years ago and I wouldn't rely on many belts to last 10+ years, specially one that could potentially cause some major damage if it were to break. CAUSES • Excessive tension. If they are leaking, the oil gets on the new timing belt, and deteriorates it, causing it to break prematurely, and then you’re back putting another belt on, or bending valves. If your timing belt breaks or slips, it can cause damage that is very costly to repair, due to engine parts coming into improper contact with each other. As belt failure is extremely rare even at high miles, the OP needs to check all components for leakage or mechanical failure. In many cases, the timing belt will break while the engine is running. the belt will break. 2006 EX 4x4 V6 only 72,500 miles, fully services at Honda dealer. So if you have a no-start condition and you know you have spark and fuel, the next thing to check might be the mechanical timing of the engine. "Next time I'm doing the job myself". I asked in plain English if the timing belt breaks, am I looking at a replacement engine. If the timing of the belt is off, it can skip and break off pieces of the camshaft. Aside from the belt absorbing significant amounts of crank-to-cam harmonics, the belt drive also took less power to drive (when compared to a timing chain or gear drive). Bad Timing Belt - The timing belt needs to be in superb condition. If you've loosened the belt, say, to replace the water pump, you done 99. com/watch/enPNb8dxC. Find out more about your Timing Belt Tensioner from Pegoraro Auto Repair in Vancouver, WA. Camshaft timing belt failure - help from Southern Engine Services. Allowing a timing belt to break can have drastic consequences. Timing Belt Information & Guide. The timing belt is a toothed rubber (it's more than just rubber, but that's another discussion) belt that keeps the crankshaft, aux shaft, and camshaft(s) in time with one another. On the 2007-2011 Minis, the timing chain, an important internal part, and it’s associated drive system, have been failing at a very high rate. I now have more information. Fit, in this case, means a cover that gives clearance of several inches to both the gear and the attached belt. Check them regularly to avoid serious problems. On diesel engines the damage is always more severe the valve to piston clearance is much closer than a petrol engine so the contact is heavier. Why Replacing A Timing Belt Is So Important. The TDI engine uses an eccentric to tension the timing belt. Disconnect the exhaust OCV (Oil control valve) connector (A). TSI engines had an early revision timing chain tensioner that was updated. I know that if it breaks, my engine is most likely ruined. A Timing Belt will rarely just snap or break in half. 2006 EX 4x4 V6 only 72,500 miles, fully services at Honda dealer. It is not affected by the timing belt. When a timing belt breaks the damage it causes could prove expensive and, after the breakage, it is essential to determine why the belt broke before simply fitting another one. Most likely is the other belts that go around pulleys slipping a bit and in need of tensioning up, or replacing. It's unusual for a serpentine belt to break without some help from a failing component, such as an A/C pulley that's locking up. Some vehicles have one belt, others 2 or 3. com - Broken Timing Belt - what are the chances in % that a valve did no bend/break. Sometimes things can go wrong no matter what. These are belt driven motors and for some strange fortune of mnemonics, the USA version engine codes start with a “B” and are three characters long (BPY, BPJ, BWE). I had a collapsed lifter cause my timing belt to skip back in '10. Systems such as the alternator, the. A federal tax break for first-time home buyers will help. You could cause the pistons to. Common among these chassis: Failure of plastic guide rails: This relates specifically to the V8 gas engines but can also apply to other engines. So you're probably looking at $1100-1200 in parts alone plus labor. It can break and potentially cause major engine damage. my question is should i consider doing the timing chain between 100 and 150,000 or is it safe to wait, i know the chain stretches at 100,000 which in my mind increases the risk the chain could snap break and blow the engine any help would be appreciated thanks. Engine Seizure. It is a belt that connects your crankshaft to the pistons that move your engine, and allows your engine to sync up its movements - it’s named after the fact it syncs the opening and closing of your engine valves to the movements of the pistons. As to the original question, there should be no internal damage to the valves. If the timing belt on a 1. Because of their composition, timing belts wear over a period of time and mileage. Systems such as the alternator, the. I don't want to have to keep on replacing th belt, that a PITA. Another cause, particularly with natural rubber belts, is contamination by oil, especially to the edges where the reinforcing fabric is exposed and can cause a wick effect. Directions 360-326-2045. I had a collapsed lifter cause my timing belt to skip back in '10. But if the timing belt or chain breaks, the valves and the pistons will travel into each other causing serious engine damage. The mower blade drive belt started throwing off in the spring of 2007. 6 L engine with rubber timing belt, beware that it could break while you are on a bridge or in traffic causing loss of power steering and brakes and cause a fatal wreck. at 35k km the belt break offits due To Fake Timing Belt. The only thing that happens when a timing belt breaks is a few valves get bent. Changing your timing belt on a regular basis is. The TDI engine uses an eccentric to tension the timing belt. Similarly, in your MINI, when the timing chain loosens enough or stretches enough to snap, a chain reaction of devastating events can occur, including critical engine damage that will likely result in expensive repair costs. The timing belt tensioner applies the correct pressure to the belt so it does not slip, and the idler pulleys keep the belt in correct alignment and allow for changes in direction around other components, such as the water pump, which may also be driven by the timing belt. Timing Belt Replacement Information! As part of the vehicle service schedule the cam-belt or timing belt, as it is sometimes known, must be replaced. I returned my kit promptly without opening the plastic and immediately ordered a kit from Napa locally for a lot more $, HOWEVER when I picked that one up from NAPA, it was the exact same Gates kit repackaged in a NAPA box. Fit, in this case, means a cover that gives clearance of several inches to both the gear and the attached belt. Spend 3 hours and put a timing belt on it then check your compression. Fan belt broke 2003 cavalier drove it another 10 miles and than it stopped. Consequence: Engine failure. I also am on my 2nd broken bolt following a timing belt change (self-performed) and assumed I must have done something wrong. It just seems like a better idea to replace the belt before it breaks. What actually causes a timing chain to go bad? Is it just the nature of the beast?, age, driving technique? etc. Leaks need to be fixed first in order for the timing belt tensioner to work properly. So you're probably looking at $1100-1200 in parts alone plus labor. So be ready for that call from the mechanic. 6 H6 and now the newer versions of the H4 starting with the 2012 Forester. Problem after timing belt change - Astra. opine the cause of the belt shreading/breaking? sensor break? Most likely a strand of the timing belt. A timing belt replacement is one of the high-price maintenance items many motorists have to deal with. BMW issues a service bulletin for models powered by the N63 4. A timing belt is a reinforced rubber belt, often about a foot long, which transfers the engine motion to the camshaft to operate the cylinder valves. If it is contaminated badly enough then it could snap. Break earliar then the specific time fr eg. Fixing this problem imply redesigning the drive. Pulling the head isn't cheap. You should immediately replace the timing belt if it starts having any common symptoms. A timing chain or belt may also jump time if it is loose. That’s why it’s important to keep them working in peak condition. Your timing belt tells the pistons when to rise and fall, and the valves when to open and close. Dear Tom and Ray: I recently had to have a new water pump put in my 2005 VW Bug. 4 V8 Bmw engine, and am getting a bad noise comming from the engine, started as grating sound then progressed to Tappet, changed the oil and filter, but has not helped the engine has 96k miles, it sounds like timing chain issue, the old oil filter had very fine filings of metal in. Yeah, you're lucky -- that a 60K mile maintenance item on that engine -- you should be on your 4th timing belt by now. Stretching, in turn, causes other problems. Some cars have a timing chain, which is more durable and has a much longer life span than a timing belt. A broken timing belt can indeed lead to the complete destruction of the engine. The Symptoms Of A Broken Timing Belt Aug 1, 2016 Your car's timing belt has a fundamental role to play in ensuring that the main parts of the engine all keep running in sync with each other. Replacing your timing belt is cheap insurance against costly engine damage. Belt Installation Tension: Belt tracking is sometimes influenced by the level of belt installation tension. The timing belt essentially connects the bottom half of your engine to the top half, driving the camshafts which open the valves at precisely the right moment. 2 article beginning of the diagnostic part 1 Beginning of the diagnostic procedure we put on the diagnostic computer and compare the actual reading of the cam adjusters to specification. If the timing belt breaks, synchronization is lost, valves and pistons collide, and significant engine damage results. (I've now promoted myself to novice mechanic from. It CAN happen, but most belt failures that I've seen were caused by one of the accessories it turned locking up. Having your Honda timing belt replaced at the recommended intervals can help ensure it doesn’t break and cause expensive damage to your engine. Engine Seizure. What would cause a 2004 tiburon gt 6 speed to shut off at 70 miles per hour and break timing belt, Completely out of - Answered by a verified Hyundai Mechanic We use cookies to give you the best possible experience on our website. This belt will have the “Factory Edge” side marked as well as “Re-Rolled” spray painted on the other side of the belt. Timing belts synchronize the action of the pistons and valves in the combustion chamber, preventing them from occupying the same space at the same time. A timing belt is a reinforced rubber belt, often about a foot long, which transfers the engine motion to the camshaft to operate the cylinder valves. So if you notice the noise, and misfire codes change the chain ASAP cause it can break. For example, the timing belt might loop through a motor mount, in which case the mount would need to be removed to access the belt. By dallasnews Administrator. If it comes out bad then pull the motor and do work. I asked about any possible damage and he said something about the valves but said not very likely anything major would happen if it were to break. incorrectly will cause the belt to break. The timing belt looks as if disaster was about to strike. 10 to 15 minute job tops for a shop - typical owner,. The Honda timing belt is a critical component, keeping the engine of your vehicle performing at its best. A bad pulley can cause fraying on the edges of the belt, and in severe cases can. The timing belt spins the gears of the camshaft. Bad Tensioner and Idler pulley due to worned out bearings that caused Slip Timing Belt. Just like your heart, if the engine jumps time, it will run poorly or fail. A main drive belt and separate ones for the alternator, fan, water pump, hydraulic steering, etc. "Play" accumulates, the belt is not sufficiently tight, and it jumps one or more. Based off the circumference of that gear, you should pick a timing gear cover that fits. If your timing belt breaks or slips, it can cause damage that is very costly to repair, due to engine parts coming into improper contact with each other. In the case of interference engines, which are manufactured with extremely close tolerances, a broken timing belt will cause the valves to hit the pistons, resulting in serious internal engine damage. The engine timing chain guide on your vehicle may fracture. The engine may continue to run but will experience a loss of performance because of the altered valve timing. If the tensioner breaks, the timing belt can slip or break. The timing belt is located in front of your vehicle's engine. Preset the ignition timing and prime the fuel system. 9 CDTI 150 - Damage? If this is your first visit, be sure to check out the FAQ by clicking the link above. I don't know if it's the case on your truck, but beware that GM had a tendency to do stupid things years agolike use an aluminum cam gear in the timing systemsthat would lose its nylon coating and then strip, causing carnage throughout the engine. Aside from the belt absorbing significant amounts of crank-to-cam harmonics, the belt drive also took less power to drive (when compared to a timing chain or gear drive). It is critical if your engine is going to run, as an engine out of synchronization will lack compression, and the Ignition will not fire on time. One of the primary causes for this is a stretched timing belt. Timing Belts. The camshafts and the crankshaft are kept synchronized by the timing belt. If the belt breaks, will the pistons hit the valves(and therefore damage the valves and pistons)?. If you experience backlash greater than 4°, it may be necessary to use an undersized belt or oversized upper pulley. Its job is to control the opening and closing of the engine’s valves by turning the camshaft and crankshaft at the right speeds. If you've loosened the belt, say, to replace the water pump, you done 99. This was in a 2006 VW TDI. Why Replacing A Timing Belt Is So Important. Think a new belt would be the first option anyone would point out, cheapest part to fit and mist likely the cause. I know that if it breaks, my engine is most likely ruined. So, I turn to you guys for advice. Have a service facility place your vehicle on an electronic diagnostic machine to check your timing and adjust it if necessary. I beleive the tensioner was at fault as there was pulley marks on the belt cover. Industrial Drives - Stationary. With the heat and. hi just because the belt broke it dosent mean there is damage to the engine turn it over by hand ie:the cams and then the crank if all is has should be just reset timing and replace belt I had a sierra and a mondeo belts brake on me engine was fine. Revisit to the 2008 Forester L. V -Belt Troubleshooting Guide L is te d h e re a re s o m e o f th e m o re c o m m o n V -B e lt s y m p to m s a n d c a u s e s o f b e lt fa ilu re. He said for $620 they replace the timing belt, water pump, serpentine belts, seals etc. the time belts have a tensioner that keep pressure on the belt. Successful Wedding Photography = Perfect Timing + Preparation. I had my timing chains replaced a couple of months ago. Today, Jesel's belt drive system has evolved considerably.