Serpentine Belts

If the belt tensioner pulley broke off how do you get the rest of it off?


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2015-07-15 19:15:12
2015-07-15 19:15:12



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AnswerYour serpentime belt tensioner needs replacement ( spring inside it broken/weak) or your belt worn , Have you changed any components lately ? installed right ( pulley not centre with rest of system ) ( shims )

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look at the top of where the serpentine belt is located. there is a pulley (called belt tensioner)with a square nipple sticking out the top of it. find a wrench the size of the nipple(via 3/4 or 7/8 etc..)and push towards the back of the car to loosen belt. now remove belt. now line up new belt following the belt route located under the hood. push the tensioner pulley back and pull belt on top pulley, making sure belt is still on all of the other pulleys hint: sometimes you have to take out the inner fender of the front right tire out and put a clamp on the belt and main pulley to hold it in place before you continue installing the rest of the belt.

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There is a tensioner pulley located at the top of belt.between alternator and power steering pump. find hex sided bolt on pulley itself(not the one attached to engine)Place 18mm box wrench (or one that fits)on this bolt. box end side is better but may sit on slight angle.Turn wrench in counter clockwise direction.You will see belt start to loosen.remove belt slowly off alternator pulley.Caution release tensioner very very slowly as it has to go further down into a rest position from where you originally started with the belt on.Failing to take this into account can damage the tensioner pulley itself. To install follow belt diagram on vehicle and reverse above

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I haven't done that particular model but all the rest have pretty much been the same. It should have a tensioner with a pulley on it bolted to the engine. The tensioner will have a square hole in it for a ratchet or breakover bar to fit in it. Some are 1/2" and some are 3/8". When you place the ratchet in the square hole and pull it, it will collapse the spring letting the tension release from the belt. Slip the belt off the pulley and ease the ratchet off.

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The 1999 Mitsubishi Galant features a 2.4-liter engine. This engine is an interference engine as determined by the manufacturer. This means that should the timing belt break or stretch past the limit of the tensioner, the valves will most likely hit the pistons, causing extreme engine damage. It takes four to five hours to change the timing belt and requires a special tensioner pulley wrench, which is available at a Mitsubishi dealer. 1. Step 1 Disconnect the battery ground cable and lay it to the side. Do not allow it to touch metal. Raise the car and support it with jack stands. Remove the right front wheel using the lug wrench. Remove the right front fender splash guard using the appropriate size sockets. 2. Step 2 Place the block of wood on the floor jack. Operate the jack until the wood just touches the bottom of the engine, supporting the engine. Remove the engine mount bracket using the appropriate socket. 3. Step 3 Loosen the alternator support nut and the adjuster lock bolt. Rotate the adjuster bolt counterclockwise, releasing tension on the alternator belt. Remove the belt. To remove the power steering belt, loosen the adjusting bolt and the fixed bolt in the slider bracket. Push the pump inward to loosen the tension on the belt. Remove the belt. To remove the air conditioning belt, push the tensioner pulley away from the belt, then lift the belt off the pulleys. 4. Step 4 Remove the accessory belt tensioner and pulley, water pump pulley, crankshaft pulley bolt and pulley and the timing belt upper and lower covers using the appropriate sockets. Turn the crankshaft clockwise until the pointer on the camshaft sprocket is at the dot on the cylinder heat at the 12 o'clock position, the dot on the oil pump sprocket is lined up with the dot on the block at the 11 o'clock position and the dot on the crankshaft sprocket is lined up with the dot on the block at the 10 o'clock position. You may have to turn the engine via the crankshaft two revolutions to get all the marks to line up. 5. Step 5 Remove the auto tensioner using a socket. Lift the timing belt off the sprockets. Remove the timing belt tensioner pulley bolt using a socket. Pull the tensioner pulley off. Rotate the tensioner pulley by hand to ensure that it rotates smoothly. If not, then replace it. 6. Step 6 Compress the auto tensioner pushrod into the auto tensioner using a vise, until the hole in the pushrod lines up with the hole in the auto tensioner body. Stick an Allen wrench in the holes to hold the pushrod in the auto tensioner. Remove the auto tensioner from the vise. Install the auto tensioner using a socket. Tighten the bolts to 17 foot pounds of torque. Install the tensioner pulley. 7. Step 7 Check the timing marks to ensure all three are still lined up. Install the timing belt, starting at the crankshaft pulley and working counterclockwise. Keep the belt tight on the non-tensioned side (the right side, when looking down at the engine). Turn the tensioner pulley counterclockwise so that it applies tension to the belt. 8. Step 8 Turn the crankshaft 90 degrees counterclockwise, then 90 degrees clockwise. Check the timing marks to ensure they are lined up. Loosen the tensioner bolt. Attach special tool MD 998752-01 and the torque wrench to the tensioner pulley. Set the torque wrench to 30 foot pounds of torque. Apply torque counterclockwise to 30 foot pounds. Hold the pulley to keep it from moving. Apply an additional 35 foot pounds of torque to the bolt. 9. Step 9 Remove the Allen wrench from the auto tensioner. Turn the crankshaft clockwise two turns. Let the vehicle sit for 15 minutes (without touching anything). Measure the pushrod protrusion. It should be .15 to .18 inches. If not, loosen the tensioner pulley, then turn it clockwise so that it applies tension to the belt. Repeat Steps 8 and 9. 10. Step 10 Install the rest of the parts in reverse order of removal. Torque the crankshaft pulley bolt to 18 foot pounds of torque.

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