How To Tighten Timing Belt Tensioner Pulley







On a GL1000, incorrect belt tension will also corrupt ignition timing since the timing apparatus is driven off the left cam not the crank as in later engines. NOTE: DO NOT refit used belt. It might be a little extra labor, but changing the water pump when you go to replace the timing belt in your Porsche 928 will save you a ton of time and money later on down the road. Because the VG30DE(TT) is an interference engine, maintaining the timing belt system is essential. First, loosen the tensioner to get the serpentine belt off. Large idler pulley 5. I threw together a little to try to show what I mean here the bolt and washer are in a hole for the power steering/ac compressor mount. The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. I have seen Subaru timing belt tensioners go bad and make noise like an engine knock. Turn the motor over by hand clockwise at least three TDC times making sure the timing marks are spot on every time also checking tension each time. Secure the new timing belt, pulleys and belt tensioner in place. Signs of a failing tensioner is a grinding, whirring, squeaking or screeching (in very bad cases) noise coming from under the plastic cover on the drivers side of the engine. Any more tension must be prevented because it could rupture the belt seam. Tensioner pulleys perform a number of important functions. This how-to is a Classic Bimmer Bits original, with much credit due to the many members of the community who have helped us learn along the way! Parts. The belt runs in V-pulleys and drives the generator and water pump, with its fan, from the crankshaft pulley. 4 tdi se Having scanned the forum with no luck I'm trying to find a method to reset the tensioner. This puts tension on the timing belt to keep it snug, and to set proper belt tension. if you need to adjust it, replace it. Put the short loop of belt back on the y motor pulley by again lifting the motor up. As the serpentine belts easily incorporate the automatic tensioner of belt, they do […]. Tensioners and idlers are important components that work hand-in-hand with the timing belt. How to adjust timing belt tensioner pulley so I can install timing belt - Answered by a verified Chrysler Mechanic We use cookies to give you the best possible experience on our website. Since you gave no information on the make and model of your vehicle, I am going to assume it is a modern vehicle (like no more than 20 years old). The chain tension of a chainsaw may be adjusted with a chain tensioner. The next time you work with a drive belt, timing belt, or timing chain, you'll likely have to loosen a tensioner pulley to remove it. Timing belt tensioner tool pre-tension the belt by rotating the tensioner pulley around its eccentric mounting bolt and then holding it in position. Holding the belt tight on the timing gear, and with the timing belt tensioner loosened, push the belt onto the #1 idler pulley. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. some of the slack in the belt. To prevent slippage it is very important. The concentric pulley tensioner adjuster should have new bearings installed on a regular basis. Most vehicles have what is called a serpentine belt. Slacken tensioner pulley nut to release tension on belt [7]. Note: this requires that no tension be applied to the #1 idler pulley by the timing belt tensioner (which shouldn't be. a) While the belt is off, you can optionally replace the supercharger's idler pulley using a 15mm deep offset box wrench. A normal but significant reduction of installation tension of a new belt occurs as a result of belt seating. To remove an old serpentine belt, or to tighten up a new one, the tensioner bolt on the tensioner pulley is turned until proper tightness is achieved. At this moment, now look down at the crank pulley to see whether it too is positioned perfectly at TDC1. As the serpentine belts easily incorporate the automatic tensioner of belt, they do […]. Timing belt (11311711081) Timing belt tensioner (11311711154) (not needed if purchased with kit in link above) Tensioner spring (11311267746). Pulley Pro® enables all three alignment conditions to be monitored. Inspect timing belt tensioner for signs. Or, you may have to loosen the tensioner pulley adjustment bolt to release. Remove tensioner, idler, and then you can get to all water pump bolts. Attach tension gauge to belt at [13]. • Dismount all locking tools. Remove the 8mm Hex bolt and fan from the engine compartment. Adjust Belt Tension; Learn More About Belt Tension Adjusting the Belt Tension for Optimal Performance. belt to pulley contact. Push the timing belt adjuster to remove the tension on the timing belt, then tighten the adjuster nut. How to set timing (timing belt change) on a Subaru SOHC EJ25 Timing is something that freaks people out when they do it for the first time. The print head on your printer is moved using a system of motors, pulleys, and belts. That is suffices to remove the water pump pulley and rotate the timing pointer so I have room to replace the timing belt. Timing belt (11311711081) Timing belt tensioner (11311711154) (not needed if purchased with kit in link above) Tensioner spring (11311267746). If the camshaft and crankshaft pulleys are not positioned at. If the belt is very far off, something is wrong, check further. You can also move the tensioner back and forth. As the belt wears it will stretch. Pulley Pro® enables all three alignment conditions to be monitored. Feature: - Multi-position engine timing belt tensioner wrench for VAG ( Volkswagen Audi Skoda Seat) vehicles - Five adjustable positions for ease of access - Retains the tensioner to allow for tightening of the tensioner nut - Suitable for both petrol and diesel applications - Requires a 4mm Hex Key to adjust the. I re-tightened the pulley bolt, but I can't figure out how to adjust the tension. It is part of the engine, and is usually recommended to be changed with the timing belt because it can seize and make lots of noise as well as stretch the belt, or the spring can weaken and it will let the belt get too slack, and "slap". Newer cars have an automatic timing belt tensioner that doesn't need any adjustment. Lightly tighten nut [7]. As most people know, there are many different methods to adjust V-belt tension or the drive belt in the 2010 Kia Forte Koup. Conveyor Belt Tensioning 101 Properly tensioning a conveyor belt is a critical step in tracking conveyor belts. There are four bolts holding the clutch to the pulley. Bent valves suck. Tensioner pulleys perform a number of important functions. This loosens slack and the serpentine belt slips right off. When you replaced the timing belt, did you remove/loosen the 14mm bolt in the middle of the eccentric pulley, or did you just unbolt the hydraulic tensioner and pull it off, leaving the eccentric tensioner. Tighten 25 Nm. I put on the new timing belt tensioner and pulled the pin, expecting the tensioner pulley to really tighten the belt, but not much happened. Squeaky belts and pulleys are the bane of any person who has to deal with them. It might be a little extra labor, but changing the water pump when you go to replace the timing belt in your Porsche 928 will save you a ton of time and money later on down the road. It is attached to the block with a bolt. There are four bolts holding the clutch to the pulley. From above, loosen the 15mm nut on the tensioner and use the tensioner tool to adjust the tensioner counter clockwise until the tensioner pin can be inserted. To properly tension a synchronous belt, place belt on pulleys and adjust takeup until the belt teeth mesh securely with the pulley grooves. For optimal operation, it is important that belt tension is maintained at the correct level. My doubt is how can I design the timing belt that perfectly match with pulley teeth. Tighter is not better. First, loosen the tensioner to get the serpentine belt off. If you have a timing belt guide plate, install it with the concave surface facing out. There is a lot going on in and near the timing cover on your Camry. Tension the belt, tighten the tensioner. Feature: - Multi-position engine timing belt tensioner wrench for VAG ( Volkswagen Audi Skoda Seat) vehicles - Five adjustable positions for ease of access - Retains the tensioner to allow for tightening of the tensioner nut - Suitable for both petrol and diesel applications - Requires a 4mm Hex Key to adjust the. Turn the motor over by hand clockwise at least three TDC times making sure the timing marks are spot on every time also checking tension each time. Put the new belt on release the tensioner adjustment bolt so the belt tightens then tighten the bolt again. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. Take all slack out of timing belt. The print head on your printer is moved using a system of motors, pulleys, and belts. When you are mowing with your Simplicity riding lawn mower each season, you will begin to stretch, wear and fray the drive belt running from the pulley under the engine to the deck pulley. Tensioning the belt 3) Remove the black plug in the lower timing belt cover to gain access to the tensioner bolt. Loose timing belt tensioning acts like a loosely-held piece of string, with a snapping action as in a high torque situation the string or timing belt will break. It's also a good idea to replace water pump, idler pulley, and tensioner pulley while you have everything off. you tension the belt with an allen key in the tensioner (as it shows in the picture for step 12) and then tighten the bolt that holds the tensioner in that tensioned position. Belt damage can occur from: n Too much or too little tension n Vibration n High temperature. Step 4: a) Adjust all markings until they are properly aligned. Finish at the top cam pulleys. Sometimes you will even see some filaments or belt fraying. If the timing belt gets loose, it may skip a tooth and the proper timing will be lost. 5L Isuzu Trooper that has just had its second DAYCO timing belt tensioner failure in 500 miles. • Turn crankshaft 720° to compression TDC on cylinder 1. With the fan out of the way, locate and loosen the 19mm fixing bolt on the belt tensioner. Large idler pulley 5. a) While the belt is off, you can optionally replace the supercharger's idler pulley using a 15mm deep offset box wrench. The tensioner is a pullly that is spring activated to keep the correct tension on the timing belt. Secure the new timing belt, pulleys and belt tensioner in place. If your car is a 1997 through 2001, the timing belt, tensioner, idler, and water pump are behind there. These are 8 mm as well. We tried pulling up engine diagrams of my '95, But no luck (that would have been too easy). MD998752 (part # changed to MD998767, contact Miller Tool for this tool - 800-801-5420) and apply 2. Timing-belt drives transmit torque and motion from a driving to a driven pulley or force to a linear actuator. Early automobiles used adjustable engine accessories to tighten the fan belt, and a belt tension pulley was not required in the belt system. The tensioner pulley works with the tensioner belt to work the crankshaft and help the various parts of the engine to move. Now fit the new timing belt, starting on the crank pulley, then the idler, tensioner, camshaft pulley, and finishing off at the water pump. Place the new belt tensioner in the same location as the old tensioner with the stud holes lined up and the belt over the top of the pulley. To even out the tension in the belt, use a spanner or socket wrench on the crankshaft-pulley bolt and turn the crankshaft two full turns clockwise. If you are sure that you have the belt routed properly, make sure that the belt tensioner arm, with the two tensioner pulleys is moving freely. The Timing Belt Service (often called the 120k or 60k service) is perhaps the most vital and significant maintenance job for the Z32. These are commonly found in most cars because it makes the timing belt easy to remove and replace. Adjust Belt Tension; Learn More About Belt Tension Adjusting the Belt Tension for Optimal Performance. While holding this tension, take the tensioner body and put it against the block in its mounting location, and insert the mounting bolts. Starting from the Crankshaft, weave the new timing belt through the Guide Pulley, over the Crankshaft Pulley and finally over the Tensioner Pulley. While you're in there, there are a few other important things to address like the timing balancer and the water pump. Tighten 7 Nm + 90° (use a new bolt). This is the tricky part: While keeping the cam gears at TDC, wrap the timing belt around the front gear and then the rear, use a zip tie to help you hold it in the correct position on the first cam gear while you work the belt over the water pump and tensioner pulley! I had to pull the tensioner pulley off of its pivot point in order to get the. Turn the motor over by hand clockwise at least three TDC times making sure the timing marks are spot on every time also checking tension each time. With the belt in place, tighten the idler pulley bolt to 38 ft. Ensure idler pulleys and tensioner pulley rotate freely. To install a new pulley, put it on and tighten the 13mm nut to 19 ft-lbs (don't tighten it until the timing belt is in the final position and checked). Finally, if someone has a diagram on how to route the belt that would be great because it looks like I did it correctly but it is no where near making it around the tensioner the way I'm looking at it. Here's how to inspect and replace it. you then turn the crank over 2 full rotations and check the timing marks are all lined up correctly. Though the mechanism itself is rudimentary, its function is so critical that you may need the help of a professional before you decide to adjust a timing belt. robinsonsauto 54,310 views. Then, just replace that panel and all the screws and tighten them up. It's like the first time for some other things, both scary and exciting at the same time. Blue Point Tensioner Part# YA9730. Sold by Shop Eddies. Tighten the bolts 50 Nm. I didn't remove the tensioner pulley. Make sure that the timing belt is properly in place and engaged evenly in the teeth of the lower crank pulley, camshaft pulley and water pump. The procedure to access the timing belt tensioner and all other timing driven components must be done according to VW guidelines. When a timing belt is replaced, it's very important to set the timing properly. Remove the valve cover. A worn automatic serpentine belt tensioner can cause belt squeal, misalignment and belt chirp, and alterantor bearing damage. Push on the timing belt to check for tightness. • Control of camshaft timing. Replace timing belt tensioner if distance is not. belt to pulley contact. • Turn crankshaft 720° to compression TDC on cylinder 1. Install the timing tensioner pulley, if it was removed. We're going to take the 5mm Allen wrench that we have, put in the tensioner, and press on it until the belt is firm and then tighten back up your 14mm. Conveyor Belt Tensioning 101 Properly tensioning a conveyor belt is a critical step in tracking conveyor belts. The timing belt most vehicles on the road today are equipped with a toothed timing belt. Read newer posts towards bottom* Hi everyone, I had some friends help me do a timing belt and water pump replacement on my 1. Using Tensioner Pulley Wrench (MD998767), rotate tensioner pulley against timing belt. Sometimes you will even see some filaments or belt fraying. This tensioner may be an automatic hydraulic type that you simply crank in one direction to remove the old timing belt. Then place the timing belt gauge between the oil pump pulley and the camshaft pulley with the gauge facing the Deutz engine bellhousing. Slacken tensioner pulley nut to release tension on belt [7]. Belt ran onto pulley flange Align pulleys Misalignment or non-rigid Align drive and/or centers reinforce mounting Bent flange Straighten flange High temperatures Remove heat source. Slip the new timing belt on starting at the crankshaft sprocket (since it can't rotate). Install the engine mount bracket to the front of engine. Feature: - Multi-position engine timing belt tensioner wrench for VAG ( Volkswagen Audi Skoda Seat) vehicles - Five adjustable positions for ease of access - Retains the tensioner to allow for tightening of the tensioner nut - Suitable for both petrol and diesel applications - Requires a 4mm Hex Key to adjust the. Boxer engines "grow" due to thermal expansion and you will over-tighten cam belts, shorten their life and cause whine if you don't accomodate these physics. Turn the motor over by hand clockwise at least three TDC times making sure the timing marks are spot on every time also checking tension each time. If the timing belt gets loose, it may skip a tooth and the proper timing will be lost. Bolt on the New Belt Tensioner Pulley (finger tight only) and the Guide Pulley (full tension). Toyota Camry 2002-2006: How to Replace Serpentine Belt, Idler and Tensioner Pulley Most engine squeals are the results of a worn out belt, idler, or tensioner pulley. Now fit the new timing belt, starting on the crank pulley, then the idler, tensioner, camshaft pulley, and finishing off at the water pump. 1 L Buick Chevy , How to replace the serpentine belt on a GM 2. Loosen this bolt and slide the tensioner around to allow the timing belt to be removed. Any more tension must be prevented because it could rupture the belt seam. This how-to is a Classic Bimmer Bits original, with much credit due to the many members of the community who have helped us learn along the way! Parts. The belt slack will move to the TB tensioner pulley and will allow you to easily put on the second bolt. Timing Belt Tensioner Locking Pin Can anyone explain the purpose of the timing tensioner locking pin? The best I can figure out is that you use it to lock the timing tensioner when removing the cam belt but from what I could find It's purpose isn't made very clear. Basically, you loosen the tensioner pulley bolt and put 3. A normal but significant reduction of installation tension of a new belt occurs as a result of belt seating. Able to perform timing belt length calculations and also shaft center to center distance calculations using your known variables. Automatic tensioners tend to wear out at around 100K miles. I have a 2002 wrx with misfires on all four cylinders and I think to I have narrowed down the problem to timing. Install the crankshaft pulley. With the belt in place, tighten the idler pulley bolt to 38 ft. Tighten to 14. The under side of the belt was beginning to get shinny which is a sign the tensioner is loosing its ability to hold the belt at the proper tension. Turn tensioner pulley anti-clockwise until tension gauge indicates 54±2 SEEM units. Inspect timing belt for damaged teeth, cracking or oil contamination. Improve ventilation. Gently, slowly inch the belt on with the timing marks aligned both top and bottom sets. Push on the timing belt to check for tightness. Tighter is not better. Adjust the balance belt idler roller such that the clearance between the roller and the belt at the lower balance shaft sprocket is 0. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. If the belt breaks before 60,000 kilometers, however, then something is definitely wrong with your timing belt tensioner. Put the new belt on release the tensioner adjustment bolt so the belt tightens then tighten the bolt again. Bent valves suck. You can get one in there between the tension spring and the roller if you move the AC compressor out of the way (it is always in the way). I *carefully* used a razor blade to do the job. The timing belt tensioner is a common problem on the 1. where T bs is the Belt tension while starting the system (N), T bs can be measured using belt tension measuring instrument (Trumeter), and K s is the start-up factor. Tighter is not better. Step 3: a) Remove the timing belt. Remove timing belt. Belt ran onto pulley flange Align pulleys Misalignment or non-rigid Align drive and/or centers reinforce mounting Bent flange Straighten flange High temperatures Remove heat source. Early automobiles used adjustable engine accessories to tighten the fan belt, and a belt tension pulley was not required in the belt system. Loosen and remove the crankshaft pulley bolt. TENTIONER PULLEY FIXED - Hold the tensioner pulley in place while adjusting the tension of the timing belt to specification. • Install the crankshaft pulley/vibration damper. Loosened the crankshaft pulley bolt to remove the crankshaft pulley. you dont even have to tighten the adjusting bolt to keep the tension off the belt. I'm not new to timing belt jobs but am new to the Toyota V6 motor. 5 Timing belt and water pump 100k Service - Duration: 41:13. The service manual suggests installing the tensioner and putting the belt on, starting at the water pump. Holding the belt tight on the timing gear, and with the timing belt tensioner loosened, push the belt onto the #1 idler pulley. If you are sure you need to retension the belt, at the least take the timing covers off and measure the gap on the tensioner rod. I'm not new to timing belt jobs but am new to the Toyota V6 motor. Install the timing belt outside cover. I have a 2002 wrx with misfires on all four cylinders and I think to I have narrowed down the problem to timing. The reasoning is when you tighten in tensioner the gear will pull its self up about 1/2 notch then your timing is right on. A timing belt tensioner is a simple and important part of the engine of a vehicle. It is held by two 8 mm bolts I believe. Measure belt span "T". Due to hundreds of heat cycles and wear on the rubber belt as well as bearings in the pulleys, the annoying noises you hear arise. timing belt. To remove an old serpentine belt, or to tighten up a new one, the tensioner bolt on the tensioner pulley is turned until proper tightness is achieved. These are commonly found in most cars because it makes the timing belt easy to remove and replace. • Turn crankshaft 720° to compression TDC on cylinder 1. When the belt is set at the proper tension, tighten the locknut to 45 Nm (33 ft-lbs). Fit the keyway on the pulley to the key on the crank timing belt pulley and tighten the 4 bolts to 8 ft. A timing belt is also referred to as a cam belt. belt to pulley contact. Put the short loop of belt back on the y motor pulley by again lifting the motor up. Most vehicles have what is called a serpentine belt. If you are uncomfortable. 3 ft-lbs of CCW (counter-clockwise) torque against the timing belt and then tighten the pulley bolt. When installing the crankshaft pulley, oil the threads of the bolt without getting oil on the washer. Belt ran onto pulley flange Align pulleys Misalignment or non-rigid Align drive and/or centers reinforce mounting Bent flange Straighten flange High temperatures Remove heat source. Calculate the effective tension (Te) on the drive using the pitch radius and design torque of the smallest loaded pulley in the system. After I finished with the timing belt, etc. This can be done with Special Tool 9207. This will increase spring tension for the tensioner pulley. Large idler pulley 5. Read newer posts towards bottom* Hi everyone, I had some friends help me do a timing belt and water pump replacement on my 1. This one long belt runs every engine-driven accessory, including the water pump, alternator, a/c compressor and power steering pump. Because the VG30DE(TT) is an interference engine, maintaining the timing belt system is essential. where T bs is the Belt tension while starting the system (N), T bs can be measured using belt tension measuring instrument (Trumeter), and K s is the start-up factor. The serpentine belt is vital to your engine working right. Tensioning the belt 3) Remove the black plug in the lower timing belt cover to gain access to the tensioner bolt. Also known as cam belt or timing chain, the timing belt runs throughout your engine, ensuring that the valves work in timed coordination with each other. 6) Loosen the tensioner again and remove the hex key; for some torque strength, tighten the tensioner a bit if you actually loosened the bolt itself. Premature failure. Remove the safety zip ties on the camshaft pulleys. Make sure the two pulleys that the short loop of belt is on are aligned. Hi, The hydraulic tensioner is automatic and requires no setting, but the mechanical tensioner pulley that it presses on requires setting. This how-to is a Classic Bimmer Bits original, with much credit due to the many members of the community who have helped us learn along the way! Parts. Adjust the vertical position of the motor bracket so that the belt is just barely tight enough so it grips the hand wheel and motor pulley and the parts are engaged and turning. How to make belt tension adjustment? 2 Answers. Sold by Shop Eddies. Most vehicles have what is called a serpentine belt. 2000 Dodge/Plymouth/Chrysler Neon Timing Belt and Tensioner Replacement I have created this page to chronicle my changing of the timing belt and timing belt tensioner on my 2000 Plymouth Neon. Newer cars have an automatic timing belt tensioner that doesn't need any adjustment. Adjusting a timing belt on Toyota Camry LE? I have just replaced a lot of parts on my car such as the water pump, thermostat, and timing belt as well as some other things. Some extra pics, we are about to install new timing belt. The Timing Belt Service (often called the 120k or 60k service) is perhaps the most vital and significant maintenance job for the Z32. Loosen and retorque the tensioner pulley bolt. This spring is pretty hard and with a new belt, it will be even harder to install. I *carefully* used a razor blade to do the job. 2001/01 AMF engine 1. Adjustable - These belt tensioners are mounted in a fixed position, but the tension on the timing belt can be adjusted using pulleys and sprockets. I didn't remove the tensioner pulley. Place the studs back in the 3 holes and start to hand tighten them. ) torque to pulley (with beam type torque wrench) as shown in Figure 19. once you are happy with the timing marks (on both the cam pulleys and crank) you check the tension on the. 5L Isuzu Trooper that has just had its second DAYCO timing belt tensioner failure in 500 miles. Calculate the effective tension (Te) on the drive using the pitch radius and design torque of the smallest loaded pulley in the system. The tension and general condition of the belt should therefore be checked at least monthly. The print head on your printer is moved using a system of motors, pulleys, and belts. Tighter is not better. Route the back side of the timing belt around the tensioner pulley and loosen the tensioner adjustment bolt - tighten adjustment bolt and spring bolt (17mm). Replace timing belt tensioner if distance is not. The point of the flat bar should point towards the tension belt. This is a good indicator that the pulleys or tensioners are worn out and becoming sloppy and not rotating. To remove the small roller pulley, loosen the 1x 13mm nut holding the pulley. Slacken tensioner pulley bolt to release tension on belt [9]. Timing belt (11311711081) Timing belt tensioner (11311711154) (not needed if purchased with kit in link above) Tensioner spring (11311267746). We don't want the pistons moving up and down out of synch with the cam. Tighten the timing belt in a clockwise direction with the tensioner pulley and without locating pin (303-1054) inserted until the markings on the tensioner pulley align. Tightening torque: 20 Nm. Adjusting a timing belt on Toyota Camry LE? I have just replaced a lot of parts on my car such as the water pump, thermostat, and timing belt as well as some other things. Tighten both tensioner bolts then pull the grenade pin on the tensioner. Turn tensioner pulley anti-clockwise until tension gauge indicates 54±2 SEEM units. Bolt on the New Belt Tensioner Pulley (finger tight only) and the Guide Pulley (full tension). Belt tensioners are extremely important in the proper operation of the accessory belt drive system. THE 928 TIMING BELT AND TENSIONER SYSTEM Wally Plumley — 928 Specialists The toothed camshaft drive belt, more commonly referred to as the timing belt, and its tensioner, make up one of the most critical of the 928's subsystems. There are two types of tensioner pulleys that provide the tension on an engine's accessory belt or belts. If so, move to the next step. if your belt shows no change start at step 2 and try again ( loosen the tensioner bolt a little more) IF you repeat the steps multiple times with no change in slack and it is outside the limits REPLACE THE BELT!!! 9) replace PS pump/belt:. Putting the Tbelt on would be immensely easier if you were to take off the crank pulley as instructed by VADIS, but I couldn't figure out how to keep the crank from rotating while removing the pulley so my fear of messing something up led me to follow the instructions on Volvospeed (Bay 13) which provides instructions for doing it without pulley removal. b) Pull the tensioning pulley away from the timing belt and screw the tensioning pulley tight again. Install the lower cover and crankshaft pulley. Place crankshaft pulley slightly onto the shaft and rotate the motor two full revolutions by hand (and make sure your timing marks still align - if they don't, repeat step 54). idler or pulley, tensioner, hydraulic damper pivot arm and water pump. The tensioner pulleys are also important in preventing any slips of the belt. If you have a timing belt guide plate, install it with the concave surface facing out. As the original owner I recently installed a Dayco timing belt water pump kit WP303K1A at its first recommended interval. I'm not new to timing belt jobs but am new to the Toyota V6 motor. Tighten 25 Nm. You may have to pull on the belts a little to get it to pop on. Due to well labeled containers, I know that it is the washer that goes under the bolt that holds the timing belt tensioner pulley in place. Loosen this bolt and slide the tensioner around to allow the timing belt to be removed. If your belt looks like the one pictured here you should seriously change it ASAP. Insert Mercedes-Benz tool # 103-0040 behind the fan pulley, and seat it between the two groves on the housing. Early automobiles used adjustable engine accessories to tighten the fan belt, and a belt tension pulley was not required in the belt system. At higher temperatures, for example with the engine at operating temperature or at higher ambient temperature, the needle is further to the right. Install the new timing belt. Adjust the timing belt tension again by rotating the crankshaft to the align the blue mark on the pulley with the pointer. Tighten the bolts 50 Nm. You can also move the tensioner back and forth. 4L Grand Am, Skylark, Achieva , How to Change a Serpentine Belt : Removing a Serpentine Belt Using Auto Tensioner , Adjusting alternator belt. Route the back side of the timing belt around the tensioner pulley and loosen the tensioner adjustment bolt - tighten adjustment bolt and spring bolt (17mm). Install the crankshaft pulley, then tighten the pulley bolt. How to make belt tension adjustment? 2 Answers. Rotate the camsprockets and crankshaft so that all of the timing marks line up. Once that was off and out of the way I removed the crank pulley bolt. I re-tightened the pulley bolt, but I can't figure out how to adjust the tension. Any more tension must be prevented because it could rupture the belt seam. For optimal operation, it is important that belt tension is maintained at the correct level. It is difficult to access the drive belt in some vehicles, and you might need to remove a wheel and a splashguard to access the belt tensioner. where T bs is the Belt tension while starting the system (N), T bs can be measured using belt tension measuring instrument (Trumeter), and K s is the start-up factor. The pins on this tool engage the offset center hub of the timing belt tensioner pulley, allowing possibly a 15mm box end wrench to be placed on the pulley lock nut, and then rotatation the offset center of the pulley upward in order to achieve proper timing belt tension. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started. If you have a timing belt guide plate, install it with the concave surface facing out. The belt slack will move to the TB tensioner pulley and will allow you to easily put on the second bolt. Optional steps. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. Inspect timing belt tensioner for signs. 10) Use a wrench to hold the crankshaft. Slacken tensioner pulley nut to release tension on belt [7]. Secure the new timing belt, pulleys and belt tensioner in place. Timing Belt Change Tips. Read newer posts towards bottom* Hi everyone, I had some friends help me do a timing belt and water pump replacement on my 1. Re: Cub Cadet LTX 1040 Mower Deck Belt to loose, how to adjust tension Here is a parts manual and operators manuall for your unit which will also show you proper belt routing. b) Place the new timing belt on the. My rule of thumb is every other timing belt change. Two cylinders designed to fix the tension pulley. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. This tool measures the tension that it takes to depress the timing belt, allowing you to adjust the position of the timing belt tensioner pulley to precisely the right spot. Place the studs back in the 3 holes and start to hand tighten them. To install a new pulley, put it on and tighten the 13mm nut to 19 ft-lbs (don't tighten it until the timing belt is in the final position and checked). you tension the belt with an allen key in the tensioner (as it shows in the picture for step 12) and then tighten the bolt that holds the tensioner in that tensioned position. Also remove the upper timing belt dust cover. Due to well labeled containers, I know that it is the washer that goes under the bolt that holds the timing belt tensioner pulley in place. On the old tensioner the piston is very strong and there is no way you could push it in with your finger.