How Tight Should A Serpentine Belt Be

We have checked the New repair manual and it explains how to change the belt, but gives no info on releasing the tensioner. All of our Chevy engines have run a belt-driven water pump since birth, so one would not be mistaken to think that a belt driven pump is the only way to go. Serpentine belts do not tighten like the v-belts we used to use on cars. I recommend buying either the genuine OEM Hyundai 25212-2B020 belt or the Bando 6PK1255 serpentine belt since it has excellent reviews on Amazon. When you release the 17mm nut, the belt tensioner should not move. You should be able to find a good serpentine belt in any national retailer's store. Replacement is very easy and straight forward. Install the A60 V-belts (23). Toyota Camry 2007-2011: How to Replace Serpentine Belt Tensioner. An Easy Serpentine Belt Upgrade For Your Engine. there is an square opening to accept a 3/8" ratchet in the tensioner. 2000 chrysler concorde 2. The cams hate to sit in the TDC position so they take a lot of fussing to get right. Also inspect that all pulleys from where belt routes ,are proper and not worn out. Tighten the nut to 17 ft. another reason could be that it is time to replace your serpentine belt. Instead of taking your car into the mechanic, you can take care of this little do it yourself project on your own. The serpentine belt is responsible for just about every one of the engine's accessories, there is no reason to take risks or any room for them when you consider the damages that can be inflicted should the belt break while you are out driving. Crank the engine and let it run for about one minute. Good luck! Before you. Manufacturers design serpentine belts to drive accessories on the engine. new belt tension should be 170 - 180 ft lbs, used drive belt tension is 95 - 135 ft lbs, torque adjusting. Simply release the tension on the belt from the tensioner, and then the belt should simply slide off. Belt tension should be checked with a gauge made for the purpose. Read on if you. 8L V6 (it should also apply to Cherokees, Grand Cherokees and Wranglers with the 4. It passes power from the motor to the air conditioning compressor to keep you comfortable, the alternator to keep your electrics running and to the supercharger, to give you a boost of power. (by volume). We're sure this How to Replace a Serpentine Belt article will help you get your car back on track!. Either of the positions does not work for the vehicle. Also inspect that all pulleys from where belt routes ,are proper and not worn out. So follow either method or take it to a dealer, putting the belt back on is not good enough. The incidence of failure rises sharply after the fourth year of service for hoses and third year for belts. Replacing the belt yourself can. Because of the design of serpentine systems, slippage should not occur with a good belt. it time to buy a new beltHow to tighten the fan (serpentine) belt. Vehicles using a single serpentine belt often use an automatic belt tensioning system. This article will cover how to tighten your drive belt to stop that annoying squeaking or squealing noise. If your vehicle is older, or if you hear squealing noises from the engine, those belts might need changing. Finally tighten the belt to the proper specifications. How to Tighten a Serpentine Belt Step 1. Does a loose serpentine belt cause noise or too tight? I have a 2000 mitsubishi galant 4cyl. The serpentine belt is vital to your engine working right. Read on if you. To remove the alternator pulley, use a 1/2" Drive impact wrench to loosen the nut. If your engine has a mechanical fuel pump, you may need to remove the fuel pump to reach the far generator stand nut. A used belt should show deflection from 0. With the belt off, visually inspect the tensioner for any cracks or signs of metal-to-metal contact between the tensioner arm. Ford F-150/F-250: How to Replace Serpentine Belt. The Serpentine belt is a single, continuous belt used to drive a multiple of peripheral devices in an automotive engine such as the. Those are some of the things that can be driven by a serpentine belt. If the alternator pulley is parallel to the straight edge, tighten the 2 upper alternator mounting bolts and nuts. You can check which engine you have by popping the hood and reading off the big bold letters, as shown below. Normally there should be about 3/4-inch of play in the belt, and the tensioner can be adjusted to return the belt to normal tension. How to Check the Drive Belt Tension: Some vehicles are equipped with a single serpentine belt while others have a two belt system. If it's not, the odds are that the belt is not below the idler pulley or is off of at least one pulley. If rib cracks are detected, you should probably remove the belt for further inspection. The spring tension causes torque on the arm of the idler pulley which pushes on the belt and should keep it at the proper tension. then you have long adjuster bolt top upper side alternator you need to loosen adjuster bolt lock nut then tighten the adjuster bolt to get alternator belt tight. If you can't twist the belt at all it is too tight. Recheck the belt position on all the pulleys. The engine has a reputation for durability and reliability as well as being a stout workhorse. I have never touched a serpentine belt before and I decided to take this task into my own hands and after about 45 minutes I discovered it was very simple. Adjust the belt tensioner correctly. If it were to break, you would loose these accessories depending on engine size and model of vehicle. Once the belt is in place, release the belt tensioner slowly. any info would be very nice :)How to tighten the fan (serpentine) belt. • Wear and tear: If a visual inspection of the serpentine belt reveals significant wear and tear, including cracks, separation, or damage, it's time for a new belt. Align the pump and clutch assembly with the crankshaft pulley, using a straight edge. The tensioner compensates for belt length changes due to wear or load changes within the system. The solution is to replace a serpentine belt and a belt tensioner. Rubber Smell– If the serpentine belt that turns the alternator has gone bad, is out of adjustment, or has gone bad, it may not be able to turn freely anymore. Battery connections should be clean, tight and corrosion-free. Remove the right front wheel and remove the 2 bolts holding the plastic side cover in place. Open the hood and locate the adjustment screw that controls tension on the serpentine belt. You can check which engine you have by popping the hood and reading off the big bold letters, as shown below. Read your car owner’s manual to find out more about your vehicle and make note of any instructions you need to follow to adjust the drive belt. Let Midas replace your timing belt, serpentine belts and radiator hoses according to the factory recommended maintenance schedule for your car to help you avoid costly repairs down the road. When you release the 17mm nut, the belt tensioner should not move. Place serpentine belt back around crankshaft and see again "How to Replace the Serpentine Belt" on how to tension the serpentine belt. Should I be able to turn the alternator by hand? Without the serpentine belt on it, it should spin freely. How To Tighten the Serpentine Belt on a Mercedes Benz 190E By Jessica Turner A serpentine belt is a multi-rib single continuous belt that allows several peripheral components of a vehicle’s engine such as the alternator, the car’s air conditioning compressor, the water and air pumps or the power steering pump to run. When a car has only one drive belt, it might be called a serpentine belt. I put it back on the right way, but I want to be sure about the tension cause ive heard too much tension can burn out the alternator. Make sure to use the lock washer and a thread locker like Loctite when tightening the nut. I would like to know about how long a serpentine belt should last before it needed to be replaced. Most tensioners feature an internal spring and pulley, which applies needed force against the serpentine belt to keep it tight. A serpentine belt is a wide thin style belt with multiple ridges that drives multiple components such as the alternator, water pump, power steering pump, and ac compressor. If the belt fails and breaks, you can't go anywhere because you'll lose your alternator. Not too loose or over tight. Other six cylinder models are similar, as are the V8s and MINIs. (when installing a belt, the alternator pulley will be the last pulley that you slide the belt onto. This is an important maintenance item to inspect at regular intervals to prevent problems. This will help keep proper alignment as the tensioner pulley is tightened. how tight should my alternator belt be? my car squeals like mad when i rev it up to 4500RPM+ so i am tightening my belts. Here is how I check belt tension on a serpentine belt: Go to the long side of the belt and grab the belt with your hand. On our Jeep, we have a diagram of the belt routing on the radiator support, but you can usually find the layout in your owner's manual or somewhere in the engine compartment. Serpentine belt for a 98 Ford ranger - The serpentine belt for a 98 Ford ranger 3. 8L Toyota Corolla, Yaris, Matrix and Pontiac Vibe An adjustment bolt on the alternator provides belt tension on Toyota's 1. 19) Connect battery. All of our Chevy engines have run a belt-driven water pump since birth, so one would not be mistaken to think that a belt driven pump is the only way to go. The serpentine/drive belt on your car is a crucial consideration, and it should be inspected at every maintenance interval (every oil change). Although differing in displacement, these engines are essentially the same design with many interchangeable parts. The belt runs in V-pulleys and drives the generator and water pump, with its fan, from the crankshaft pulley. Install the A60 V-belts (23). However it the belt is loose then it may need replaced or it might have gotten stuck. Once the belt is in place, release the belt tensioner slowly. If your vehicle's serpentine belt is broken, you may find it difficult to turn the steering wheel and driving may be unsafe. By using an elastic material in the belt cords the stretch or stretchy belts are designed to stay tight, much like a large rubber band. This is an important maintenance item to inspect at regular intervals to prevent problems. The general rule of thumb is if you can turn your alternator pulley while the car is off your belt is too loose. When sliding on the new belt, keep the slack near the tension pulley—all other belt running should be tight. Hold the alternator pulley firmly. Treadmill Drive Belt Adjustments The Treadmill Motor Drive Belt is adjusted independently from the walking belt. Replacing the belt yourself can. The fan belt needs tightening and I cannot work out how to do it for the life of me. It could last a long time, or components such as the internal spring or pulley bearings can go bad at any time. As you can imagine, that puts a lot of wear and tear on the belt. What happens is that the belt stretches under load, becoming looser. t alk Words & photos: bob de bont Replacing the serpentine (drive) belt on an MX-5 NC After hearing various reports of NCs having idler pulley issues, I placed it as my next mid-life maintenance task. This article will educate you on how to replace alternator belt. The engine has a reputation for durability and reliability as well as being a stout workhorse. Rotate the accessory drive belt tensioner counterclockwise until it contacts the stop and install the accessory drive belt onto the pulleys and slowly release the tensioner. The belt is kept tight through the belt tensioner. The belt and tensioner are maintenance items and don't last forever. If you're unable to see or visually identify your serpentine belt, there is an auditory queue to listen for. Also watch for water, oil or other foreign substances on the accessory belt, as these can cause it to deteriorate or malfunction faster. It requires some mechanical know-how and an ability to read and follow directions and diagrams. The belt itself is driven by a pulley installed on the engine crankshaft. But here I cannot pull the belt over the pulley. 0 petrol? Hi everyone, I have bought a Ford Focus and everything is great apart from one thing. 2 cm (1/2 inch) of play, if it becomes frayed or cracked, or if you hear a loud squeaking noise during driving, the belt should be replaced as soon as possible. Serpentine belts stretch with age and use, but the tensioner is spring-loaded to keep the belt tight on the pulleys. The serpentine belt is vital to your engine working right. When it can’t turn freely it may produce a noticeable rubber smell. The desired belt tension is reached by pressing in the middle of the belt's longest run with 22 lbs pressure, deflection of a new belt should be between 0. Now, to get a power steering belt installed, the costs can be around $85 to $180. I think I'm gonna go buy a compatible width one an inch or two longer. The belt tensioner on the Nissan 4. The serpentine belt on your R53 MCS is a critical component in the engine. Re: How much slack should the drive belt have? Make sure you have the correct belt, belt should deflect about 1 1/2" when pushed down midway between the clutches, this is normal for any cvt system. That awful squealing beneath the hood may be coming from a frayed or cracked serpentine belt. One of the biggest burdens today for professional technicians and do-it-yourselfers is belt noise, and the No. Tighten the tensioner to the point it had been before. The serpentine belt wraps around a pulley connected to the crankshaft. Also read: What causes chest congestion and how to get rid of it? Causes of tightness in chest. serpentine belt replacement Help keep your vehicle from losing power - with serpentine belt replacement services from Valvoline Instant Oil Change SM. Good condition but I have no idea if it is orig. Most cars have one or two drive belts. The tensioner should rotate smoothly during compression and during release. I have 2005 cummins ISB 300hp with 21,000 miles. anit-freeze. But yet the belt is staying on. Once the belt is in place, release the belt tensioner slowly. Many people forget about this setting, but making sure to tighten the bolts to specific torque pressure will ensure the pulley engages smoothly. The Serpentine belt is a single, continuous belt used to drive a multiple of peripheral devices in an automotive engine such as the. Hi, Sorry i rambled in my post. In the meantime, I'm just trying to get the damn belt back on so I can at least drive it to someplace to address the water pump if that's the root cause. You can check which engine you have by popping the hood and reading off the big bold letters, as shown below. 95K and all. It is generally separate from the belt that drives the water pump and alternator, but it may drive other components as well as the power-steering pump. On the way back from the shop the PS belt started screeching loudly. alternator belt on any vehicle should be tight enuff that you can push down about 1/8 of and inch on the longest straightest part of belt if engine has a serpentine belt, the belt tensioner will. If the squealing sound you hear associated with air conditioning is in your car, the diagnosis is usually simple. If the light doesn't go off, schedule an appointment with your friendly and knowledgeable pros at Gary Knurek GoodYear to get it checked out. The largest hash is the position of the tensioner with no tightening. But here I cannot pull the belt over the pulley. Its job is to apply pressure on the belt to keep it tight. Oil Change Process. In my opinion this repair has solved the Chrysler serpentine belt problem. This was done on a 1995 Honda Passport 3. But the small idler and tensioner pulley bearings won’t last 200,000 miles. The engine has a reputation for durability and reliability as well as being a stout workhorse. Use a pry bar to push down your alternator which will tighten up your serpentine belt and then fasten the adjusting and pivot screws to secure it. Most engine belts need replacement between 60,000 and 100,000 miles on all vehicles. Now place 13mm socket over bolt going through 17mm wielded nut and tighten to 40 foot pounds of torque. Photos are of a 2006 model year with a GD16DE motor but many models. Up to the tensioner pulley. Your serpentine belt is like one giant, fast-spinning rubber band. Can … read more. There should be no slack in the belt. You should also check the tensioner pulley at this time for possible wear. The spring tension causes torque on the arm of the idler pulley which pushes on the belt and should keep it at the proper tension. The timing belt tensioner is what applies pressure to the timing belt, keeping it tight and running smoothly. You should be able to find a good serpentine belt in any national retailer's store. If the belt is worn, replace it. Those are some of the things that can be driven by a serpentine belt. The diagrams are for both,with and without AC models. The desired belt tension is reached by pressing in the middle of the belt's longest run with 22 lbs pressure, deflection of a new belt should be between 0. Install the serpentine belt tensioner. Reverse the Belt. Knowing how to change a serpentine belt can save you some expense. It'll squeal, then I tighten C until it stops squealing, plus one turn or so. Each model will be different. Use a pry bar to push down your alternator which will tighten up your serpentine belt and then fasten the adjusting and pivot screws to secure it. How To Tighten the Serpentine Belt on a Mercedes Benz 190E By Jessica Turner A serpentine belt is a multi-rib single continuous belt that allows several peripheral components of a vehicle's engine such as the alternator, the car's air conditioning compressor, the water and air pumps or the power steering pump to run. You also need to get quite a lot of stuff - like the radiator fan - out of the way to reach it and to put it back in place. However after the replacement on my drive back, I noticed that there is a loud screeching noise coming from under the hood when I turn on the AC. This one long belt runs every engine-driven accessory, including the water pump, alternator, a/c compressor and power steering pump. Some vehicles have a spring-loaded version, while others apply tension with a hydraulic device. 0L V6(VQ40) found in the Nissan Frontier(2005 and up), Pathfinder(2005-2011), and Xterra(2005 and up) does not properly tension the belt over time, which is what causes the annoying squeaking noise because the belt is slipping in cold/damp conditions. The belt is made of rubber and deteriorates after several years of use. Crank the engine and let it run for about one minute. Most tensioners have a place where you can place a socket to release tension while putting on the belt but I can't seem to find it. Is it possible that an overly tight belt could lead to damag…. Another tensioner pulley uses a square-faced bolt for adjustment, and a third uses a large tab that can be set to a certain position for proper belt tightness. A serpentine belt lasts longer than traditional drive belts and is much easier to remove and install. How tight should the serpentine belt be on a 1998 jeep wrangler? It's hard to give a measurement of "how tight", but if I grab my belt between the Main Crank pulley and the Alternator, I can. Some more information on how the Check Engine light works may be helpful for Troy drivers. 5, T5, T10 Polyurethane) Precise design and tight manu-facturing tolerances. The ins and outs of a serpentine belt drive design are revealed in this application where Taking the serpentine route. Unless you see cracks, or missing "v" sections and it is not squealing on startup, keep the OEM belt on as Rob suggested. The belt that drives a power-steering hydraulic-fluid pump is usually at the front of the engine, turned by a pulley on the crankshaft. Photos are of a 2006 model year with a GD16DE motor but many models. If it were to break, you would loose these accessories depending on engine size and model of vehicle. When you release the 17mm nut, the belt tensioner should not move. 9 L V6 and within the past few weeks the belts have been squeeking horribly so i check under the hood and the belt that is connected to the alternator and engine seemed very loose. Serpentine Belt Replacement On Defender 90 Or Discovery I. With the belt off, visually inspect the tensioner for any cracks or signs of metal-to-metal contact between the tensioner arm. Identify the pullies with grooves as these are the pullies which should be facing the grooved side of the new belt. any info would be very nice :)How to tighten the fan (serpentine) belt. If the truck has set for a long time, it's possible that the tensioner has rusted solid. Well, I guess those are more like necessities by today’s standards. Well I fried one alternator when the belt slipped-apparently they heat up when they are not going fast enough-belt was slipping. If you can pull the belt more than a half inch from the ruler, it is not tight enough. Be aware that in addition to your serpentine belt, you have a separate water pump belt (Caterpillar part). However after the replacement on my drive back, I noticed that there is a loud screeching noise coming from under the hood when I turn on the AC. Loosen the 2 bolts and the pulley should slide enough to get the belt off. Then to remove the belt the rest of the way, you pull it down off of your power steering pump, down there. Not knowing exactly what type of aftermarket pulley system you have or why it was installed makes it next to impossible to say how to loosen or tighten the belt, but the general rule of thumb when adjusting the tension on a belt weather it is the old style v-belt, or the more modern multiple ribbed serpentine belt is that if you grasp the belt in the longest area between pulley's you should. The alternator belt broke and I am going to replace it. Its hardley broke in at 21K miles but when u see cracks evry 3/4 inch and or can by hand turn the belt sideways by using a tumb and finger with little efort change it. Alternator mounting nuts 48 35 Seawater Pump Pulley Alignment While this does not normally cause a belt shredding problem, this pulley should be checked also. If rib cracks are detected, you should probably remove the belt for further inspection. Your serpentine belt is like one giant, fast-spinning rubber band. Check again that the belt is seated properly on every pulley. The belt is driven off of the crankshaft and turns accessories such as the water pump (on Cooper models), supercharger/water pump (on Cooper S models), alternator, and air conditioning compressor. Pull the belt up and onto the alternator and release your tensioner and you should be all set. 9 L V6 and within the past few weeks the belts have been squeeking horribly so i check under the hood and the belt that is connected to the alternator and engine seemed very loose. Securely tighten the four 3/8" x 1 1/4" bolts (17) holding the pump assembly to bracket. There should be a 3/8ths square hole in the arm of the tensioner. The drive belt on your Accord is also known as the serpentine belt (or the accessory belt), and should be changed every 105,000 miles. The scissors-shaped tool (3, K-D Tools 3471) is designed tool to grab 2 of the 4 water pump pulley bolts so the fan/clutch assembly can be removed more easily. Adjust the belt tensioner correctly. I have heard the rule where in a 5 hole belt you should be wearing it in the third hole, but I am curious as to how much 'give' I should feel when I pull my belt out in front of me. Loosen the bolts some, pry it until the belt is tight and retighten. How to replace the serpentine belt on a 1. Also replaced the timing belt as it may have been stretched. Place the socket end of the socket wrench over the wing-nut and turn clockwise Step 3. Here's how to inspect and replace it. This article applies to the Lexus ES (2007-2014). What happens is that the belt stretches under load, becoming looser. See "How to Replace the Serpentine Belt" for instructions on how to remove the serpentine belt. Carefully thread the new belt through the system of pullies according to the serpentine system diagram. But that's like saying just because you. But the small idler and tensioner pulley bearings won’t last 200,000 miles. >Anyone know? > >Thanks > >LM > >PS. Place serpentine belt back around crankshaft and see again "How to Replace the Serpentine Belt" on how to tension the serpentine belt. The belt is not specific to any manufacturer's brand. This system is designed to apply a constant force on a belt. The tensioner automatically applies pressure to the belt to keep it tight while the engine is operating. Then tighten belt so that it deflects 1/64-inch for every inch of belt span when a force as specified in the table below is applied to the top of the belt. Serpentine belts stretch with age and use, but the tensioner is spring-loaded to keep the belt tight on the pulleys. 2 cm (1/2 inch) of play, if it becomes frayed or cracked, or if you hear a loud squeaking noise during driving, the belt should be replaced as soon as possible. This was done on a 1995 Honda Passport 3. Not knowing how loose the current belt is, it probably shouldn't take too many turns of the tensioning bolt. Tip: An alternate method of seeing whether the drive belt needs tightening is to rotate the belt. Your serpentine belt is like one giant, fast-spinning rubber band. Also inspect that all pulleys from where belt routes ,are proper and not worn out. In some vehicles, the drive belt also serves as a timing belt, keeping. A very tight belt would put pressure on and damage the parts in the assembly, whereas a loose belt would not allow the parts to run firmly. Now start the truck with the hood open and look at the belt making sure its riding in the middle of each pulley. Mini Cooper 2001-2006: How to Replace Serpentine/Supercharger Belt. Our certified technicians can perform this service while you wait in the convenience of your car. 2L Ecotec engine in a Cobalt, Cavalier and many more The serpentine belt on the GM 2. The belt tension should be absolutely right. In this video, Doug will show you how to access and remove the belt, and then replace and install a new belt. Ideally, it should be pushed down to ¾ of an inch. i've got a constant chirp/squeak coming from my belt. Power steering belt case 885 Davidbrown adjustment? case 1835b skid steer case 300b part search case 310b 580K upper rear window latches hydralic oil leat 885 case hydralic oil leat 885 case 1940's/1950's Case DC tractor 630 Case Diesel triple range case sc question case 350 dozer, rear seal replacement Case 530 CK Case 510B-H case 1490. Why pay a dealership to fix this when anyone with a DIY attitude can do the labor for free? Read on to see just how easy it can be to do this little bit of maintenance. The same concept and cautionary statements apply to every car equipped with a serpentine belt so you can use your knowledge to replace any belt on any car. If the belts are loose, tighten them. When you release the 17mm nut, the belt tensioner should not move. With the exception of some Honda with electric steering set up, almost all of them would require you to remove the power steering belt first before you can. So I'm assuming serpentine belts should err on the side of being tighter rather than looser. Serpentine belts work on the wedge effect of the belt and pulley. The diagrams are for both,with and without AC models. Paxton Novi 2000 on a 2000 GT - Just How Tight Should the Serpentine Belt Be? The car just does not feel like it is making full boost to me, partly because of the auto tranny shifting (other thread) and the power does not seem to be all there, maybe I am expecting too much. I recommend buying either the genuine OEM Hyundai 25212-2B020 belt or the Bando 6PK1255 serpentine belt since it has excellent reviews on Amazon. Based on serpentine belt reviews, it doesn’t loose from at once and will serve you for many years. a few righty tighties and you should be done. There really is no spec when they have an automatic tensioner. This is a pretty typical setup, but it can vary somewhat. How much serpentine belt replacement should cost. By using an elastic material in the belt cords the stretch or stretchy belts are designed to stay tight, much like a large rubber band. 5 or 2 hrs to replace the main serpentine belt. DIY Serpentine Belt Conversion for all A-series MG Midgets, Austin Healey Sprites, Morris Minors and Classic Mini Coopers. Can … read more. You also need to get quite a lot of stuff - like the radiator fan - out of the way to reach it and to put it back in place. If your engine has a mechanical fuel pump, you may need to remove the fuel pump to reach the far generator stand nut. That will allow you to take the tension off and pull the belt. Push the old belt back as far as it will go on the crank and cam sprockets, leaving approximately a 1/4" to slide the new belt over. The fan belt needs tightening and I cannot work out how to do it for the life of me. Slide the belt off the alternator pulley first and then the tensioner and S-L-O-W-L-Y let the tool and tensioner return to a neutral position. How to check the serpentine drive belt on your car or truck. As you can imagine, that puts a lot of wear and tear on the belt. Jeep Cherokee 1984-2001: Why is My Serpentine Belt Slipping? The serpentine belt transfers the engine's rotation to the rest of the accessories. There should be an automatic tensioner to keep it snug. Symptoms Of A Bad Serpentine Belt Just about every vehicle has a serpentine belt. new belt tension should be 170 - 180 ft lbs, used drive belt tension is 95 - 135 ft lbs, torque adjusting. Open the hood of the vehicle, and lightly press down on the serpentine belt. Slip Over Alternator. With the belt off, visually inspect the tensioner for any cracks or signs of metal-to-metal contact between the tensioner arm. I use the power steering pulley as the last. Should I install the serpentine belt on my own? If you do not have special tools in your house, it is recommended that you allow a specialist to install V-belts. A used belt should show deflection from 0. I had to put in a new alternator. If the belt fails and breaks, you can't go anywhere because you'll lose your alternator. But the small idler and tensioner pulley bearings won’t last 200,000 miles. ? The Fan on most engines with a Serpentine belt is tightened via a Idler pulley. the FSM says with about 20lbs, the belt should deflect about 8mm or so. To replace a serpentine belt you have to loosen the engine mounts and raise the engine up a slight bit, then remove the old belt and replace it with a new one, remembering to tighten the engine belts back up. When you release the 17mm nut, the belt tensioner should not move. If you can't twist the belt at all it is too tight. Now my car is only 3 years old and only has about 40,000 km on it, so it seems really early for the serpentine belt to be going (i. A used belt should show deflection from 0. Removal and replacement of a Camry's serpentine belt is challenging enough, how about doing this while also replacing the belt tensioner?. Use the tips of your fingers to unscrew. Serpentine belt tensioner 5. The tension is set by sliding the tensioner along the right side bolt. I've had to retighten by alternator belt numerous times over the years until I started using a prybar to get it really tight. If you are having low battery issues, the idler pulley tensioner might be going bad. This is an important maintenance item to inspect at regular intervals to prevent problems. How do I install a serpentine belt on a truck? How do I tighten the serpentine belt? How often does a serpentine belt need to be replaced? Is replacing a serpentine belt something I can do myself? What does serpentine belt noise sound like? What needs to be done for a glazed serpentine belt? What should I know about a Saturn's serpentine belt. The single belt, commonly known as a drive belt, powers the accessory systems in your vehicle. Those are some of the things that can be driven by a serpentine belt. Should I be able to turn the alternator by hand? Without the serpentine belt on it, it should spin freely. It's a crucial part of the engine assemblyhere are step-by-step instructions for replacing your. He asked if I used an OEM belt. Remove the old fan belt, steel tensioner strap, and the bolt that passes through the front engine plate's motor mount extension. The belt should be tight and snug in place. Identify the real cause of the fan belt noise and fix the issue for good. That's the routing I was using, maybe this belt is a hair tight? I'll try the water pump pulley. Noise - A worn serpentine belt can start slipping. Remove the serpentine belt. Apr 20, 2019- The best Serpentine belts are one of the most important parts of automotive devices. However after the replacement on my drive back, I noticed that there is a loud screeching noise coming from under the hood when I turn on the AC. Rotate the tensioner clockwise to release the tension. I tried starting it & its running but the heat isnt working so i'm not sure if its because theres too much slack in the belt or what. Normally there should be about 3/4-inch of play in the belt, and the tensioner can be adjusted to return the belt to normal tension. Jeep Grand Cherokee 1993-1998: How to Replace Serpentine Belt The serpentine belt uses the engine rotation to turn the power steering, alternator, and air conditioning.
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