I have a 1995 Nissan sentra I'm trying to install the idler pulley. When I tighten the nut it freezes the pulley. Is there a cover on the back of the pulley I'm missing? The parts I have are the nut,

no year(94-present) stated. and under kia dont help much.

its at alldtata.com, i read all the steps and not skip one, I WOULD.

wild guess, #1 a 2005 RAV4
2.0L 3sfe. inline 4 cylinder, not V6


here is the one i see on the FSM.

my gates belts all come with a manual. RTM?
if you buy the belt at a dealer they assume you have the FSM.
right?
FSM, install, steps

1. Install the oil pump pulley. Tighten the nut to 18 ft. lbs. (24 Nm).
2. Install the crankshaft timing pulley. Align the pulley set key with the key groove of the pulley. Slide on the pulley facing the flange side inward.
3. Install the No. 2 idler pulley and tighten the mounting bolt to 31 ft. lbs. (42 Nm). Be sure that the pulley moves smoothly.
4. Install the No. 1 idler pulley with the bolt and the tension spring. Pry the pulley toward the left as far as it will go and tighten the bolt. Make sure that the pulley moves smoothly.
5. Temporarily install the timing belt. Using the crankshaft pulley bolt, turn the crankshaft and position the key groove of the crankshaft timing pulley upward. If reusing the timing belt, align the points marked during removal.
6. Install the timing belt on the crankshaft timing pulley, oil pump pulley, No. 1 idler pulley, water pump pulley and the No. 2 idler pulley.
7. Install the timing belt guide.
8. Install the lower (No. 1) timing belt cover and new gasket with the 4 bolts.
9. Align the crankshaft pulley set key with the pulley key groove. Temporarily install the crankshaft pulley and bolt.
10. Align the camshaft knock pin with the groove of the pulley, and slide the timing pulley onto the camshaft with the plate washer and set bolt.
11. Tighten the pulley set bolt to 40 ft. lbs. (54 Nm).
12. Turn the crankshaft pulley and align the 0 mark on the lower (No. 1) timing belt cover.
13. Finish installing the timing belt and check the valve timing, as follows:
    1. If reusing the old timing belt, align the matchmarks made previously and install the timing belt onto the camshaft pulley.
    2. Align the marks on the timing belt with the marks on the camshaft pulley.
    3. Loosen the No. 1 idler pulley set bolt 1 / 2 turn.
    4. Turn the crankshaft pulley 2 complete revolutions TDC to TDC. ALWAYS turn the crankshaft CLOCKWISE. Check that the pulleys are still in alignment with the timing marks.
    5. If the No. 1 idler pulley uses a green tension spring, slowly turn the crankshaft pulley 1 7 / 8 revolutions, and align its groove with the mark at 45 degrees BTDC (for the No. 1 cylinder) of the No. 1 timing belt cover.
    6. Tighten the No. 1 idler pulley set bolt to 31 ft. lbs. (42 Nm).
    7. Be sure there is belt tension between the crankshaft and camshaft timing pulleys.
14. Place the right-hand engine mounting bracket in position but do not install the bolts.
15. Install the upper (No. 2) timing cover with a new gasket(s).
16. Remove the engine crankshaft pulley bolt and pulley.
17. Using SST 09249-63010, or equivalent, install the mounting bolts for the right-hand mounting bracket. Tighten the mounting bolts to 38 ft. lbs. (52 Nm).
18. Align the crankshaft pulley set key with the pulley key groove. Install the pulley. Tighten the pulley bolt to 80 ft. lbs. (108 Nm).
19. Install the spark plugs.
20. Install the right-hand mounting insulator, as follows:
    1. Attach the mounting insulator to the body and mounting bracket with the 4 bolts and 2 nuts.
    2. Tighten the 3 bolts to hold the mounting insulator to the body. Tighten the bolts to 47 ft. lbs. (64 Nm).
    3. Tighten the 2 nuts and bolt to hold the mounting insulator to the mounting bracket. Tighten the bolt to 27 ft. lbs. (37 Nm) and the nut to 38 ft. lbs. (52 Nm).
21. Install and adjust the power steering pump drive belt.
22. Install the right-hand engine undercover.
23. Install the right front wheel.
24. Lower the engine.
25. If equipped, install the ABS actuator.
26. Install the alternator and alternator bracket.
27. Install the wiring harness bracket for the DLC1.
28. Install the power steering reservoir bracket and reservoir.
29. Connect the negative battery cable.
30. Start the engine and check the timing.

step 13.4 is never to be skipped. ask why., most do. and it fails.

Step-by-Step instructions at youtube site How do you adjust alternator belt tension on 1995 Nissan Sentra XE

Hi, the procedure is pasted below. There is a good rundown with pics at the following post:
http://www.toyotanation.com/forum/showthread.php?t=264429
Please let me know if you have questions.


REMOVAL & INSTALLATION
5S-FE Engines

1. Remove the timing belt covers as previously detailed.
2. Raise the engine just enough to remove the weight from the engine mount on the right side.
3. Remove the thru-bolt, two nuts, and right hand mounting insulator.
4. Remove the retaining bolts and remove the right hand mounting bracket (from the side the alternator was removed from).
5. Remove the timing belt and timing belt guide. If the timing belt is to be reused, draw a directional arrow on the timing belt in the direction of engine rotation (clockwise) and place matchmarks on the timing belt and crankshaft gear.
6. Remove the bolt retaining the No. 1 idler pulley and tension spring.
7. Remove the No. 2 idler pulley.
8. Remove the crankshaft timing gear , if it can not be removed by hand, use two flat bladed tools to pry it off. Make sure to position shop rags to prevent damages to the components.
9. Remove the nut retaining the oil pump pulley.

To install:

1. Align the cutouts of the oil pump pulley and shaft, and slide the pulley on. Retain the pulley while tightening the nut to 21 ft. lbs. (28 Nm).
2. Align the crankshaft timing pulley set key with the key groove of the crankshaft pulley, then slide the pulley on.
3. Install the No. 2 idler pulley with the bolt and tighten to 31 ft. lbs. (42 Nm). Be sure the pulley moves smoothly.

NOTE Remove any oil or water on the idler pulley and keep it clean.

1. Temporarily install the No. 1 idler pulley with the retaining bolt. Hint: use a 1.65 inch (42mm) bolt in length. Do not tighten the bolt yet. Install the tension spring. Pry the pulley toward the left as far as it will go, then tighten the bolt.
2. Turn the crankshaft until the key groove in the crankshaft timing pulley is facing upward. Install the timing belt on the crankshaft timing, oil pump, No. 2 idler and water pump pulleys.

NOTE If the old timing belt is being reinstalled, make sure the directional arrow is facing in the original direction and that the belt and crankshaft gear matchmarks are properly aligned.

1. Install the lower (No. 1) timing belt cover and new gasket with the four bolts.
2. Align the crankshaft pulley set key with the pulley key groove. Install the pulley. Tighten the pulley bolt to 80 ft. lbs. (108 Nm).
3. Align the camshaft knock pin with the matchmarks on the oil seal retainer.
4. Align the knock pin with the groove of the pulley, and slide the pulley onto the camshaft with the plate washer and set bolt.
5. Tighten the set bolt to 27 ft. lbs. (37 Nm).
6. Turn the crankshaft pulley and align the 0 mark on the lower (No. 1) timing belt cover.
7. Install the timing belt and check the valve timing as follows:
1. Align the matchmarks that you made previously, and install the timing belt onto the camshaft pulley.
2. Loosen the No. 1 idler pulley set bolt 1 / 2 turn.
3. Turn the crankshaft pulley two complete revolutions TDC to TDC. ALWAYS turn the crankshaft CLOCKWISE. Check that the pulleys are still in alignment with the timing marks.
4. Tighten the No. 1 idler pulley set bolt to 31 ft. lbs. (42 Nm).
5. Make sure there is belt tension between the crankshaft and camshaft timing pulleys.


8. Install the upper (No. 2) timing cover with a new gasket(s).
9. Align the two clamps for the engine wiring harness with the cover mounting bolts.
10. Install the spark plugs.
11. Install the right mounting insulator with bracket. Tighten the bracket bolts to 38 ft. lbs. (52 Nm), insulator nuts to 38 ft. lbs. (52 Nm) and thru-bolt to 52 ft. lbs. (71 Nm).
12. Install the No. 2 engine mount bracket and tighten to 38 ft. lbs. (52 Nm); install the control rod and tighten the bolts to 47 ft. lbs. (64 Nm).
13. Lower the engine.
14. Install the alternator and alternator bracket.
15. Install the drive belt and adjust the tension.
16. Install the cruise control actuator with bracket.
17. Install the fender apron seal and right engine under cover.
18. Install the right front wheel.

Belt Installation, Aerostar 4.0L Engine





Item Part Number Description 1 8620 Drive Belt 2 N606068 Bolt 3 10300 Generator 4 10153 Generator Mounting Bracket 5 8509 Water Pump Pulley 6 6B209 Drive Belt Tensioner 7 N800199 Screw 8 8678 Belt Idler Pulley 9 N802096 Screw 10 19703 A/C Compressor 11 2882 A/C Compressor Mounting Bracket 12 3C718 Brace 13 N806020 Bolt 14 3A674 Power Steering Pump 15 3A733 Power Steering Pump Pulley 16 N800199 Screw 17 N606572 Bolt 18 N620481 Nut 19 8501 Water Pump 20 6312 Crankshaft Pulley A - Belt Tension Check (See Specifications) B - Tighten to 40-55 Nm
(30-41 Lb-Ft) C - Tighten to 24-30 Nm
(18-23 Lb-Ft) D - Tighten to 21-29 Nm
(15-21 Lb-Ft) E - Tighten to 40-50 Nm
(30-37 Lb-Ft)

Belt Installation, Ranger and Explorer 4.0L Engine





Item Part Number Description 1 8620 Drive Belt 2 10300 Generator 3 8678 Belt Idler Pulley 4 19703 A/C Compressor 5 3A733 Power Steering Pump Pulley 6 8501 Water Pump 7 6312 Crankshaft Pulley 8 6B209 Drive Belt Tensioner 9 N806020 Bolt 10 2882 A/C Compressor Mounting Bracket 11 3A674 Power Steering Pump 12 N606572-S2 Bolt 13 N800199-S8M Bolt 14 N620481-S2 Nut 15 3C718 Brace 16 N606068 Bolt 17 10153 Generator Mounting Bracket 18 8509 Water Pump Pulley 19 N605805-S2 Bolt A - Belt Tension Check (See Specifications) B - Tighten to 21-29 Nm
(15-21 Lb-Ft) C - Tighten to 40-55 Nm
(30-41 Lb-Ft)

Belt Installation, Ranger 2.3L Engine





Item Part Number Description 1 8678 Belt Idler Pulley 2 10300 Generator 3 8509 Water Pump Pulley 4 3A733 Power Steering Pump Pulley 5 2E884 A/C Clutch Pulley 6 6312 Crankshaft Pulley

Belt Installation, Aerostar 3.0L Engine





Item Part Number Description 1 10300 Generator 2 3F671 Belt Idler Pulley 3 3A733 Power Steering Pump Pulley 4 6B209 Drive Belt Tensioner 5 6312 Crankshaft Pulley 6 8509 Water Pump Pulley 7 19703 A/C Compressor

Installation
1.Install No. 2 idler pulley (if removed). Install and tighten bolt to specification. See TORQUE SPECIFICATIONS . Ensure idler pulley is clean and rotates smoothly. 2.Install No. 1 idler pulley and tension spring (if removed). Pry No. 1 idler pulley away from timing belt area as far as possible. Temporarily tighten No. 1 idler pulley bolt. Ensure idler pulley is clean and rotates smoothly. 3.Using crankshaft pulley bolt, rotate crankshaft so timing mark on crankshaft sprocket aligns with timing mark on oil pump housing. See. This will position keyway in crankshaft sprocket at 12 o'clock position.

CAUTION:If reusing timing belt, ensure reference marks on timing belt align with reference marks placed on crankshaft and camshaft sprockets. Ensure timing belt is installed in original direction of rotation.
4.Ensure all sprockets and idler pulleys are clean. Install timing belt on crankshaft sprocket, oil pump sprocket, No. 1 idler pulley, and then No. 2 idler pulley in sequence. 5.Install timing belt guide with cupped side away from crankshaft sprocket and flat side toward timing belt. Install No. 1 timing belt cover and new gasket. 6.Align crankshaft pulley key groove with key in crankshaft. Install crankshaft pulley. Install and tighten crankshaft pulley bolt to specification. 7.Rotate crankshaft clockwise so cylinder No. 1 is at TDC on compression stroke. Ensure timing mark on crankshaft pulley aligns with "0" mark on No. 1 timing belt cover. If reusing timing belt, ensure reference mark on timing belt aligns with upper edge of No. 1 timing belt cover. 8.Rotate camshaft, and align hole in camshaft sprocket with alignment mark on camshaft bearing cap. See Fig. 2 . Install timing belt on camshaft sprocket. If reusing timing belt, ensure reference mark on timing belt aligns with the reference mark on camshaft sprocket. Ensure tension exists on timing belt between the crankshaft and camshaft sprockets.
CAUTION:DO NOT rotate crankshaft counterclockwise, as viewed from timing belt end of engine.
9.Loosen No. 1 idler pulley bolt 1/2 turn. Rotate crankshaft pulley 2 full revolutions clockwise from TDC to TDC. 10.Ensure timing mark on crankshaft pulley aligns with "0" mark on No. 1 timing belt cover, and hole in camshaft sprocket aligns with alignment mark on camshaft bearing cap. See Fig. 2 . If timing marks are not aligned, remove timing belt and reinstall. 11.Rotate crankshaft clockwise 1 and 7/8 revolutions and align crankshaft pulley "0" mark with 45-degree Before Top Dead Center (BTDC) mark on No. 1 timing belt cover. See Fig. 5 . 12.Tighten No. 1 idler pulley bolt to specification. See TORQUE SPECIFICATIONS . Install No. 2 timing belt cover and gaskets. Install and tighten spark plugs to specification. 13.To install remaining components, reverse removal procedure. Install all bolts/nuts on right (timing belt side) engine mount before tightening to specification. 14.On Camry, when installing control rod and bracket on strut tower and right (timing belt side engine mount, tighten bolts to specification in sequence.

Best to remove the front passenger side wheel. Then snap out the clips that are holding the plastic cover towards the front. Now it will expose the belt area. Loosen the locking nut of the tensioner(idler) pulley located to the right of the Crankshaft Pulley. Crankshaft pulley is the one that handles both belts (alternator and the power sterring pump). Right to that next to it, upwards is the idler pulley. You will find the alternator pulley to the right of that further up. Open the hood of the van and locate the adjusting nut behind the alternator on the idler pulley from top and loosen that as well. Once both these are loosened, belt will loosen and will be easy to remove. Now replace it with the new belt the same way it was wrapped. Go over the crankshaft pulley; under the A/C compressor pulley; over the alternator pulley; under the idler pulley. tighten the adjusting nut from the top through the hood until the play on the belt (when pressed in) is less than 1 inch. Now lock the tensioner pulley by tightening the locking nut. Start and run the car for 15 mins to see if everything is ok.

That should be right if it is an idler pulley. On belts that do not have idler pulley you will have to loosen lock bolt on adjuster. Like alternator

Hi Kmcarroll77

TIMING BELT REPLACEMENT - 2.2L -1993 Toyota Camry

Installation
1.Install No. 2 idler pulley (if removed). Install and tighten bolt to specification. See TORQUE SPECIFICATIONS . Ensure idler pulley is clean and rotates smoothly. 2.Install No. 1 idler pulley and tension spring (if removed). Pry No. 1 idler pulley away from timing belt area as far as possible. Temporarily tighten No. 1 idler pulley bolt. Ensure idler pulley is clean and rotates smoothly. 3.Using crankshaft pulley bolt, rotate crankshaft so timing mark on crankshaft sprocket aligns with timing mark on oil pump housing. See. This will position keyway in crankshaft sprocket at 12 o'clock position.

CAUTION:If reusing timing belt, ensure reference marks on timing belt align with reference marks placed on crankshaft and camshaft sprockets. Ensure timing belt is installed in original direction of rotation.
4.Ensure all sprockets and idler pulleys are clean. Install timing belt on crankshaft sprocket, oil pump sprocket, No. 1 idler pulley, and then No. 2 idler pulley in sequence. 5.Install timing belt guide with cupped side away from crankshaft sprocket and flat side toward timing belt. Install No. 1 timing belt cover and new gasket. 6.Align crankshaft pulley key groove with key in crankshaft. Install crankshaft pulley. Install and tighten crankshaft pulley bolt to specification. 7.Rotate crankshaft clockwise so cylinder No. 1 is at TDC on compression stroke. Ensure timing mark on crankshaft pulley aligns with "0" mark on No. 1 timing belt cover. If reusing timing belt, ensure reference mark on timing belt aligns with upper edge of No. 1 timing belt cover. 8.Rotate camshaft, and align hole in camshaft sprocket with alignment mark on camshaft bearing cap. See Fig. 2 . Install timing belt on camshaft sprocket. If reusing timing belt, ensure reference mark on timing belt aligns with the reference mark on camshaft sprocket. Ensure tension exists on timing belt between the crankshaft and camshaft sprockets.
CAUTION:DO NOT rotate crankshaft counterclockwise, as viewed from timing belt end of engine.
9.Loosen No. 1 idler pulley bolt 1/2 turn. Rotate crankshaft pulley 2 full revolutions clockwise from TDC to TDC. 10.Ensure timing mark on crankshaft pulley aligns with "0" mark on No. 1 timing belt cover, and hole in camshaft sprocket aligns with alignment mark on camshaft bearing cap. See Fig. 2 . If timing marks are not aligned, remove timing belt and reinstall. 11.Rotate crankshaft clockwise 1 and 7/8 revolutions and align crankshaft pulley "0" mark with 45-degree Before Top Dead Center (BTDC) mark on No. 1 timing belt cover. See Fig. 5 . 12.Tighten No. 1 idler pulley bolt to specification. See TORQUE SPECIFICATIONS . Install No. 2 timing belt cover and gaskets. Install and tighten spark plugs to specification. 13.To install remaining components, reverse removal procedure. Install all bolts/nuts on right (timing belt side) engine mount before tightening to specification. 14.On Camry, when installing control rod and bracket on strut tower and right (timing belt side engine mount, tighten bolts to specification in sequence. See Fig. 6 . On MR2, tighten engine


Hope this helps, don't forget to rate.

Lazaruselite

loosen nut in center of idler pulley ..then loosen tension bar with 12mm socket til it walks away to remove belt