How To Tighten Timing Belt Tensioner Pulley

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. Slacken tensioner pulley nut to release tension on belt [7]. Timing Belt VFAQ (Timing Belt TSB - ENHANCED) "Loosen the tensioner pulley center bolt, attach special tool no. Incorrect belt tension (as well as pulley misalignment) adversely affects belt drive reliability and efficiency. Remove the timing belt by sliding it off of the pulleys. The place to tighten the tensioner pulley is at 45 BTDC, otherwise the belt may be tighter or looser than ideal. So I took the tensioner off and was able to push the piston back in with my finger. A normal but significant reduction of installation tension of a new belt occurs as a result of belt seating. 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. Once that was off and out of the way I removed the crank pulley bolt. 2001/01 AMF engine 1. Ford F-150/F-250: How to Replace Idler and Tension Pulleys. As for the tensioner of the timing belt this must be changed every time it would be silly not to. To determine the K factor, different informations are required, namely (i) belt wrap at drive, (ii) bare steel pulley or lagged pulley, and (iii) screw take-up or gravity take-up. Timing-belt drives transmit torque and motion from a driving to a driven pulley or force to a linear actuator. 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. 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. Move tensioner pulley away from belt. Belt tensioner pulley (TBP) SKF belt tensioner pulleys for timing system are based on state-of-the-art technology. Loosen and remove the crankshaft pulley bolt. At this point you should re-install the camshaft locking tools and then finally install the belt onto the final idler pulley. Check that the cams and timing belt are both at zero first. While holding this tension, take the tensioner body and put it against the block in its mounting location, and insert the mounting bolts. Taking a break will allow your hydraulic tensioner to fully open and put tension against your timing belt assembly. 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. Then, replace the pulley and the bolt that holds the pulley in place, and just tighten that up. 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. 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. Insufficient belt tension causes slippage, squealing, heat build-up, belt roll-over and premature failure. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. • Install the cylinder head cover. The belt slack will move to the TB tensioner pulley and will allow you to easily put on the second bolt. (Don't release the belt just yet because the tensioner could just fall out. 3 ft-lbs of CCW (counter-clockwise) torque against the timing belt and then tighten the pulley bolt. Since all these components have similar lifespans, manufacturers recommend replacing all of them at the same time so the system can function like new. Insufficient belt tension causes slippage, squealing, heat build-up, belt roll-over and premature failure. If your car is a 1997 through 2001, the timing belt, tensioner, idler, and water pump are behind there. Install the timing belt outside cover. comgreat picture John!. Insert Mercedes-Benz tool # 103-0040 behind the fan pulley, and seat it between the two groves on the housing. Put the torque wrench on the tensioner pulley bolt, and put on 20 FOOT POUNDS of tension on the pulley. Install the engine mount bracket to the front of engine. 9 PD TDI (AWX) with the friction damped tensioner - Im aware there are issues with the tensioner stud in particular potentially snapping when reused. At this point you should re-install the camshaft locking tools and then finally install the belt onto the final idler pulley. Note: this requires that no tension be applied to the #1 idler pulley by the timing belt tensioner (which shouldn't be. Install new timing belt "B" over crankshaft sprocket "B", around the tensioner pulley, and over the silent shaft sprocket. Or, you may have to loosen the tensioner pulley adjustment bolt to release. Stretching slackens a belt, so that it slips on the pulleys. example of a timing belt tensioner lock pin for hydraulic tensioners Tensioner compressed with lock pin installed. 5 mm hex driver. Then run the back of your timing belt over and into your water pump gears, and finally over your tensioner pulley and bracket. You can relieve the tension on the tensioner by the top or the bottom. 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. 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). Once the belts are aligned, you can tighten the pulleys again with the 1. Extremely loud belt squeaking, I took it to autozone to help me pinpoint it, and it is the pulley(or belt tensioner) that is located directly to the right of the alternator. The concentric pulley tensioner adjuster should have new bearings installed on a regular basis. 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. 10) Use a wrench to hold the crankshaft. Honda Accord: How to Replace Timing Belt, Timing Balancer, and Water Pump As per Honda, your timing belt needs to be serviced every 50,000 to 80,000 miles. 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. For optimal operation, it is important that belt tension is maintained at the correct level. This video will show you how to remove the serpentine belt tensioner in a Saturn S-Series car. But how to exactly match the pitch circle of pulley to get multiple of 9. b) Pull the tensioning pulley away from the timing belt and screw the tensioning pulley tight again. Question Hydraulic timing belt tensioner. 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. Make sure you align the timing marks first before removing the old belt. Some extra pics, we are about to install new timing belt. Diagnosing a noisy accessory belt drive Whenever a vehicle owner complains of under-the-bonnet noise, it is important to determine the type of noise and under what circumstances it occurs. Should the timing belt or one of its related components fail, it is extremely likely that major engine components. Using Tensioner Pulley Wrench (MD998767), rotate tensioner pulley against timing belt. Conveyor Belt Tensioning 101 Properly tensioning a conveyor belt is a critical step in tracking conveyor belts. The print head on your printer is moved using a system of motors, pulleys, and belts. 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. Two cylinders designed to fix the tension pulley. 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). Basically, you loosen the tensioner pulley bolt and put 3. The Cam pulley may move a little, note which direction. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. Adjust the timing belt tension again by rotating the crankshaft to the align the blue mark on the pulley with the pointer. 2001/01 AMF engine 1. A timing belt idler pulley may help provide additional track routing for the belt. Attach tension gauge to belt at [13]. V Belt Tension Methods & Instructions. If necessary, replace them. Stretching slackens a belt, so that it slips on the pulleys. Loosen and remove the crankshaft pulley bolt. 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). If you have a timing belt guide plate, install it with the concave surface facing out. Ensure timing pins located correctly [5] & [6]. This is all done with the hydraulic tensioner in a compressed mode. Push the Tensioner Pulley against the belt to remove slack and tighten the Tensioner Pulley Bolt. 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. 9 PD TDI (AWX) with the friction damped tensioner - Im aware there are issues with the tensioner stud in particular potentially snapping when reused. The concentric pulley tensioner adjuster should have new bearings installed on a regular basis. If there's slack, tighten the tensioner. This can be done with Special Tool 9207. Tighten 7 Nm + 90° (use a new bolt). Also, the belt should be adapted to the crown of sprocket. Then place the timing belt gauge between the oil pump pulley and the camshaft pulley with the gauge facing the Deutz engine bellhousing. Adjust Belt Tension; Learn More About Belt Tension Adjusting the Belt Tension for Optimal Performance. 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. Check tensioner pulley and water pump sprocket for smooth operation. Loosened the crankshaft pulley bolt to remove the crankshaft pulley. As the serpentine belts easily incorporate the automatic tensioner of belt, they do not require any tension. Push the Tensioner Pulley against the belt to remove slack and tighten the Tensioner Pulley Bolt. My doubt is how can I design the timing belt that perfectly match with pulley teeth. Tensioner pulleys perform a number of important functions. On the old tensioner the piston is very strong and there is no way you could push it in with your finger. Loosen the timing belt tensioner pulley to create tension on the belt. Also remove the upper timing belt dust cover. 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. Swapping out those noisy pulleys and belts its actually a pretty simple task that doesn't require any special tools or skill. NOTE: DO NOT refit used belt. This can be done with Special Tool 9207. 9 PD TDI (AWX) with the friction damped tensioner - Im aware there are issues with the tensioner stud in particular potentially snapping when reused. The serpentine belt is vital to your engine working right. Check for special belt construction Broken belt Excessive sidewall wear Cracks in belt backing Timing Belts. Now pitch of belt is 9. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. *UPDATE: Still having issues after tightening tensioner clockwise. 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. Sold by Shop Eddies. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Loosen this bolt and slide the tensioner around to allow the timing belt to be removed. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. A normal but significant reduction of installation tension of a new belt occurs as a result of belt seating. Tension the belt, tighten the tensioner. Our engineers recommend careful belt tensioning. The water pump is the tensioner for the timing belt. My doubt is how can I design the timing belt that perfectly match with pulley teeth. By using the tensioner pulley tool, or a larger ratchet, you can easily rotate the pulley taking the tension off the belt and remove the belt fast and easy. This tensioner may be an automatic hydraulic type that you simply crank in one direction to remove the old timing belt. some of the slack in the belt. 2 8v engines in both the MK1 punto and the MK2. Belt coming off: Pulley misalignment, belt misalignment on pulley, defective tensioner, or bearing wear in tensioner, idler or driven accessories Belt noise can be hard to isolate, as the sound may seem to be coming from an accessory drive, such as the alternator or air conditioning compressor. Remove all the old gasket material. Rotate the crankshaft pulley about five or six turns counterclockwise so that the timing belt positions on the pulleys. timing belt. This is all done with the hydraulic tensioner in a compressed mode. Adjust the nominal center distance of your drive design to match the belt. Insert Mercedes-Benz tool # 103-0040 behind the fan pulley, and seat it between the two groves on the housing. If your belt looks like the one pictured here you should seriously change it ASAP. To remove the small roller pulley, loosen the 1x 13mm nut holding the pulley. First of all, the tensioner pulley is used to maintain the proper levels of tension to the serpentine belt. 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. 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. Rotate the crankshaft pulley about five or six turns counterclockwise so that the timing belt positions on the pulleys. They may also convey a load placed on the belt surface. Tensioning the belt 3) Remove the black plug in the lower timing belt cover to gain access to the tensioner bolt. Spot on! Ever skeptical, I cranked 'er up (after setting the tensioner pulley as per the instructions) and ran the engine for a few minutes without the upper timing belt cover in place. belt to pulley contact. 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. 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. In some vehicles, the drive belt also serves as a timing belt, keeping the movement of the cylinders in sync with the valves and other components of the cylinder head. A drive under load develops a. Step 4: a) Adjust all markings until they are properly aligned. This is not meant as an authoratative guide on how to do so. Hold tensioner pulley in position. Because the VG30DE(TT) is an interference engine, maintaining the timing belt system is essential. 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. (Don't release the belt just yet because the tensioner could just fall out. If your car is a 1997 through 2001, the timing belt, tensioner, idler, and water pump are behind there. To make things easier, remove the plugs and have car in neutral with front and rear wheels chocked so the car doesn't roll over your head. Serpentine belts also use a tensioner pulley to create tension on the belt rather then have to tighten the belt using the alternator bracket and a large screw driver. 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:. Tighten both tensioner bolts then pull the grenade pin on the tensioner. Gently slide the timing belt off. Premature failure. 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. 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. One type is self-adjusting; the other requires manual adjustment. 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". 3 ft-lbs of CCW (counter-clockwise) torque against the timing belt and then tighten the pulley bolt. Slacken tensioner pulley nut to release tension on belt [7]. Use a flat head screwdriver to gently pull up on the bracket, and tighten the 14mm bolt that runs through the tensioner to finalize the timing belt tension. 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 is a better view of the timing belt tensioner compressor. By holding the exhaust cam gear it prevents the gears from moving and helps bring up the slack on the tensioner side to get the timing dead on. The timing belt tensioner is used to do just that - keep tension on the timing belt. 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. First of all, the tensioner pulley is used to maintain the proper levels of tension to the serpentine belt. The belt slack will move to the TB tensioner pulley and will allow you to easily put on the second bolt. b) Pull the tensioning pulley away from the timing belt and screw the tensioning pulley tight again. A worn automatic serpentine belt tensioner can cause belt squeal, misalignment and belt chirp, and alterantor bearing damage. Extremely loud belt squeaking, I took it to autozone to help me pinpoint it, and it is the pulley(or belt tensioner) that is located directly to the right of the alternator. Basically, you loosen the tensioner pulley bolt and put 3. once you are happy with the timing marks (on both the cam pulleys and crank) you check the tension on the. Fit the new timing belt by starting at the crankshaft and working in a clockwise direction, finishing off by sliding the belt onto the large deflection pulley. Pulley Pro® enables all three alignment conditions to be monitored. Tighten the belt by rotating the tensioner in a clockwise direction so the pointer is aligned with the recess on the base plate and then tighten the tensioner bolt to 20Nm. If you see abrasion or uneven wear along the edges of the timing belt. This is a good indicator that the pulleys or tensioners are worn out and becoming sloppy and not rotating. Slip the new timing belt on starting at the crankshaft sprocket (since it can't rotate). 5L Isuzu Trooper that has just had its second DAYCO timing belt tensioner failure in 500 miles. Loosen the tensioner pulley center bolt. To remove the small roller pulley, loosen the 1x 13mm nut holding the pulley. 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. You can relieve the tension on the tensioner by the top or the bottom. Each manufacturer will have different recommendations based on your project's specifications, taking into account shaft speeds, power transmission, environment, and other concerns. Optional steps. I didn't remove the tensioner pulley. I re-tightened the pulley bolt, but I can't figure out how to adjust the tension. Mitsubishi Belt Tension Tensioner Pulley Adjuster Adjust Hand Tool New MD998767 equivalent tool (older part# MD998752) timing belt tool/wrench for Mitsubishi engines. Hi, The hydraulic tensioner is automatic and requires no setting, but the mechanical tensioner pulley that it presses on requires setting. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley. The timing belt most vehicles on the road today are equipped with a toothed timing belt. with the engine off, tension the belt with pto on then check belt tension,it should feel firm but not loose. Sold by Shop Eddies. Some extra pics, we are about to install new timing belt. The timing belt most vehicles on the road today are equipped with a toothed timing belt. Tensioning the belt 3) Remove the black plug in the lower timing belt cover to gain access to the tensioner bolt. Ensure that the seal is between the water pump and the oil pump case. Timing belt (11311711081) Timing belt tensioner (11311711154) (not needed if purchased with kit in link above) Tensioner spring (11311267746). The tensioner pulley works with the tensioner belt to work the crankshaft and help the various parts of the engine to move. Push on the timing belt to check for tightness. There isnt THAT much slack, but I can definitely squeeze the pulleys on and tighten them down without having to release the tensioner. 10) Use a wrench to hold the crankshaft. Conveyor Belt Tensioning 101 Properly tensioning a conveyor belt is a critical step in tracking conveyor belts. There are two types of tensioner pulleys that provide the tension on an engine's accessory belt or belts. Move tensioner pulley away from belt. The serpentine belt and the timing belt or chain on an automobile engine may be guided by an idler pulley and/or a belt tensioner, which may be spring-loaded, hydraulic, or fixed. The tensioner is a pullly that is spring activated to keep the correct tension on the timing belt. Loosen the timing belt tensioner pulley to create tension on the belt. After a 25 minute drive home from work my generator light comes on at a red stop light, then stalls and I cant. Now, get out your breaker bar and remove the bolts on the tensioner in the Saturn engine. The timing belt is a rubber belt that runs over and through a series of pulleys and gears. You cannot simply 'crank' the tensioner pulley, you need a tool or a set of 90* needle nose pliers to put tension on the off-centric pulley. 5L Isuzu Trooper that has just had its second DAYCO timing belt tensioner failure in 500 miles. Do not leave any slack on the tension side of the belt (Figure 8). Install the lower cover and crankshaft pulley. Secure the new timing belt, pulleys and belt tensioner in place. Timing belt tensioner tool pre-tension the belt by rotating the tensioner pulley around its eccentric mounting bolt and then holding it in position. Install the engine mount bracket to the front of engine. As the serpentine belts easily incorporate the automatic tensioner of belt, they do […]. Extremely loud belt squeaking, I took it to autozone to help me pinpoint it, and it is the pulley(or belt tensioner) that is located directly to the right of the alternator. 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. Adjust the nominal center distance of your drive design to match the belt. A timing belt idler pulley may help provide additional track routing for the belt. Auto Service Costs Find the prices for normal auto service activities including alignment, tuneup, timing belt replacement and more. b) Place the new timing belt on the. To prevent slippage it is very important. Use a large wrench on the cam sprockets because the valve springs have a lot of tension and will want to abruptly cause the cam to rotate. The screws should be tight enough to hold on to the rod, but be careful not to strip the screws. Torque your tensioner bolt to 38 foot-pounds. Tightening torque: 25 Nm. Hold tensioner pulley in position. At this moment, now look down at the crank pulley to see whether it too is positioned perfectly at TDC1. Squeaky belts and pulleys are the bane of any person who has to deal with them. Slide the timing belt timing belt of the crankshaft, taking into account the installation. Taking a break will allow your hydraulic tensioner to fully open and put tension against your timing belt assembly. Tension the belt, tighten the tensioner. Push the Tensioner Pulley against the belt to remove slack and tighten the Tensioner Pulley Bolt. Install the timing tensioner pulley, if it was removed. Once you tighten the tensioner, the sprockets will rotate counter clockwise slightly. The very highest quality (MADE IN THE USA) cam bearing/timing belt tensioner/idler pulley tool. Checking the tensioner pulley and idler pulley Check bearing wear: spin the idler pulley and listen for noise. If replacing with a new idler pulley, tighten to 24 Nm spin the tension pulley and listen for noise. Once that was off and out of the way I removed the crank pulley bolt. A solution to a noise problem caused by pulley misalignment is not likely to resolve a slip noise problem that may be caused by insufficient tension. 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. Turned the crankshaft pulley 3 teeth counter-clockwise to tighten the belt. A tensioner pulley is one that a vehicle owner or mechanic can adjust to change the amount of tension on the belt when needed. 3 ft-lbs of CCW (counter-clockwise) torque against the timing belt and then tighten the pulley bolt. b) Place the new timing belt on the. Then place the timing belt gauge between the oil pump pulley and the camshaft pulley with the gauge facing the Deutz engine bellhousing. I'm in the middle of a Timing belt job on a 2000 3. The other requires adjustment with a bolt that is located on the side, top or bottom of the pulley. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley. V Belt Tension Methods & Instructions. 8 8v 84 Rabbit GTI and we ran into a bunch of trouble with it trying to diagnose noise after reassembly. The old timing belt if still in place is tensioned by the timing belt tensioner. 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). Labor costs are estimated between $67 and $86 while parts are priced between $310 and $312. b) Check tensioner, smooth back idler pulleys and belt pulleys for wear or damage. 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. (Don't release the belt just yet because the tensioner could just fall out. 1990-1992 Models 1993 Models Figure 8; Push the timing belt "B" tensioner up to place pressure on the timing belt so that the tension side is taut. 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. Labor costs are estimated between $67 and $86 while parts are priced between $310 and $312. Tighten camshaft sprocket bolts [10]. Then run the back of your timing belt over and into your water pump gears, and finally over your tensioner pulley and bracket. How to Tell if a Timing Belt Tensioner Is Bad. 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. First, loosen the tensioner to get the serpentine belt off. I am wondering how to check the timing to see if the belt skipped? If the belt did skip would it be smart to get and new belt and tensioner and any pulleys that might be bad. 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. Find many great new & used options and get the best deals for Serpentine Timing Belt Tension Tensioner Adjustment Pulley Idler Setting Tool at the best online prices at eBay!. The timing belt tensioner is a common problem on the 1. Check that all pulleys align to their proper indexing marks. The procedure to access the timing belt tensioner and all other timing driven components must be done according to VW guidelines. Tighten to 14. 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. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. With the crank pulley off you can now see the timing belt gear. Adjust the timing belt tension again by rotating the crankshaft to the align the blue mark on the pulley with the pointer. At this moment, now look down at the crank pulley to see whether it too is positioned perfectly at TDC1. 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. 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. The point of the flat bar should point towards the tension belt. It's like the first time for some other things, both scary and exciting at the same time. Bolt on the New Belt Tensioner Pulley (finger tight only) and the Guide Pulley (full tension). Adjust the balance belt idler roller such that the clearance between the roller and the belt at the lower balance shaft sprocket is 0. exhaust camshaft pulley water pump belt tensioner. Remove the safety zip ties on the camshaft pulleys. (Don't release the belt just yet because the tensioner could just fall out. Find a repair manual and follow the tensioning instructions to the letter. A worn automatic serpentine belt tensioner can cause belt squeal, misalignment and belt chirp, and alterantor bearing damage. You can also move the tensioner back and forth. The tensioner pulley works with the tensioner belt to work the crankshaft and help the various parts of the engine to move. 7 Nm (24 in. Attach tension gauge to belt at [13]. You cannot simply 'crank' the tensioner pulley, you need a tool or a set of 90* needle nose pliers to put tension on the off-centric pulley. It may help if you remove the spark plugs so the timing belt doesn't jump teeth. as you can see, the washer has caught the right edge of the tensioner and as you tighten the bolt, the belt goes slack. Conveyor Belt Tensioning 101 Properly tensioning a conveyor belt is a critical step in tracking conveyor belts. Inspect timing belt for damaged teeth, cracking or oil contamination. The water pump is the tensioner for the timing belt. 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. In the engine, the serpentine belt which activates and connects to every pulley is the most popular used recently. A timing belt idler pulley may help provide additional track routing for the belt. Check tensioner pulley and water pump sprocket for smooth operation. Online calculator developed by Pfeifer Industries with ease of use for the end-user in mind. I have a 2002 wrx with misfires on all four cylinders and I think to I have narrowed down the problem to timing. URO Engine Timing Belt Tensioner Pulley URO Parts 9135555. The correct timing belt tension is the lowest tension at which timing belts will transmit the required mechanical power and not ratchet teeth when the drive is under a full load. Replace the lower timing belt cover and bolt on the crank 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). 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. The concentric pulley tensioner adjuster should have new bearings installed on a regular basis. Bent valves suck. I shut 'er down and checked the alignment again. 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. This included the water pump, timing belt, TB tensioner, idler and tension pulleys. comgreat picture John!. Ensure idler pulleys and tensioner pulley rotate freely. Step 4: a) Adjust all markings until they are properly aligned. Then run the back of your timing belt over and into your water pump gears, and finally over your tensioner pulley and bracket. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley. *UPDATE: Still having issues after tightening tensioner clockwise. They tend to start showing strange grooves on the tensioner. These are 8 mm as well. Now remove the timing belt. The tensioner is a pullly that is spring activated to keep the correct tension on the timing belt. We don't want the pistons moving up and down out of synch with the cam. Holding the belt tight on the timing gear, and with the timing belt tensioner loosened, push the belt onto the #1 idler pulley. The correct timing belt tension is the lowest tension at which timing belts will transmit the required mechanical power and not ratchet teeth when the drive is under a full load. A timing belt is also referred to as a cam belt. This spring is pretty hard and with a new belt, it will be even harder to install. 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. Temporarily tighten tensioner pulley center bolt. 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. By using the tensioner pulley tool, or a larger ratchet, you can easily rotate the pulley taking the tension off the belt and remove the belt fast and easy. When replacing, screw the tension pulley into place using the center screw.