Belt replace instructions

How do I tighten the serpentine belt on a 09 4cyc 2. 3 liter engine

Drive Belts

• INSPECTION
• ADJUSTMENT
• REMOVAL & INSTALLATION

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INSPECTION

See Figures 1, 2, 3, 4 and 5
Check the condition and tension of all drive belts every 12,000 miles, or at least once a year. Loose drive belts can lead to poor engine cooling and diminished alternator, power steering pump, air conditioning compressor, or emission air pump output. A belt that is too tight places a strain on the bearings in the driven component.

Fig. Fig. 1: There are typically 3 types of accessory drive belts found on vehicles today

Fig. Fig. 2: An example of a healthy drive belt

Fig. Fig. 3: Deep cracks in this belt will cause flex, building up heat that will eventually lead to belt failure

Fig. Fig. 4: The cover of this belt is worn, exposing the critical reinforcing cords to excessive wear

Fig. Fig. 5: Installing too wide a belt can result in serious belt wear and/or breakage
Replace any drive belt that is glazed, worn, cracked, or stretched to the point where correct adjustment tension is impossible. If two belts are used to drive a component, always replace both belts when replacement is necessary. After installing a new belt, run the engine for ten minutes, shut OFF the engine and recheck the belt tension. Readjust if necessary.

ADJUSTMENT

See Figures 6, 7, 8, 9 and 10

Fig. Fig. 6: Engine belt tension chart-2.2L engines

Fig. Fig. 7: Engine belt tension chart-1987-89 2.5L engines

Fig. Fig. 8: Engine belt tension chart-2.6L engines

Fig. Fig. 9: Engine belt tension chart-1990-93 models

Fig. Fig. 10: Engine belt tension chart-1994-95 models
Two popular methods of checking drive belt adjustment are; the Belt Tension Gauge Method and the Belt Deflection Method. The former requires a special gauge and the latter requires a straight edge and scale or just a good eye for measurement. The deflection method will be used in the following belt replacement instructions. A rule of thumb for checking belt tension by the deflection method is to determine the midpoint between two pulleys of the drive belt and press down at that point with moderate thumb pressure. The belt should deflect to the measurement indicated in the following installation procedures. Adjustment is necessary if the belt is either too loose or too tight.

WARNING A belt adjustment which is either too loose or too tight will eventually damage the accessory that belt is driving. A too loose adjustment allows free-play in the belt which could transfer a whipping motion or shock to the accessory drive pulley. Similarly, a belt which is too tight will preload the accessory bearings, leading to early failure.

REMOVAL & INSTALLATION

See Figure 11
Raise the front of the vehicle, support on jackstands and remove the lower splash shield if access is hampered due to space limitations when changing drive belts.

Fig. Fig. 11: Support the vehicle, then remove the lower right side splash shield for access to the drive belts
2.2L Engines
A/C COMPRESSOR DRIVE BELT
See Figures 12, 13 and 14

Fig. Fig. 12: A/C compressor drive belt adjusting points-2.2L engines

Fig. Fig. 13: Loosening the locking screws for A/C compressor drive belt removal

Fig. Fig. 14: Removing the A/C compressor drive belt from under the vehicle

1. Loosen the idler pulley bracket pivot screw and the locking screw.
2. Remove the belt and install a replacement.
3. Using a breaker bar and socket apply torque to the welded nut provided on the mounted bracket to obtain proper tension.
4. Tighten the locking screw first, followed by pivot screw. Tighten to 40 ft. lbs. (55 Nm).

ALTERNATOR DRIVE BELT (CHRYSLER TYPE)
See Figures 15 and 16

Fig. Fig. 15: Alternator belt adjustment-2.2L engine

Fig. Fig. 16: Loosening the locking screw for alternator drive belt removal
If removal of the alternator belt is required, the A/C belt must first be removed.

1. Loosen the pivot nut, locking screw, and the adjusting screw.
2. Remove the belt and install a replacement.
3. Adjust to specification by tightening the adjusting screw.
4. Tighten the locking screw to 25 ft. lbs. (34 Nm).
5. Tighten the pivot nut to 30 ft. lbs. (41 Nm).

ALTERNATOR DRIVE BELT (BOSCH TYPE)
If removal of the alternator belt is required, the A/C belt must first be removed.

1. Loosen the pivot nut, locking nut, and adjusting screw.
2. Remove the belt and install a replacement.
3. Adjust to specification by tightening the adjusting screw.
4. Tighten the locking nut to 25 ft. lbs. (34 Nm).
5. Tighten the pivot nut to 30 ft. lbs. (41 Nm).

POWER STEERING BELT
If removal of the power steering belt is required, the A/C and alternator belts must first be removed.

1. Loosen the locking screw, and pivot screw.
2. Remove the belt and install a replacement.
3. Install a 1 / 2 in. breaker bar into the pump bracket slot, apply pressure with the breaker bar and adjust the belt to specification.
4. Tighten the locking screw first, then the pivot screw. Tighten to 40 ft. lbs. (55 Nm).

AIR PUMP DRIVE BELT
See Figure 17

Fig. Fig. 17: Air pump belt adjustment-2.2L engines
When servicing the air pump, use the square holes provided in the pulley to prevent camshaft rotation.

1. Remove the nuts and bolts retaining the drive pulley cover.
2. Remove the locking bolt and pivot bolt from the pump bracket, then remove the pump.
3. Remove the belt and install a replacement.
4. Position the pump, then install the locking bolt and pivot bolt finger-tight.
5. Install a 1 / 2 in. breaker bar into the bracket assembly (block the drive pulley to prevent camshaft rotation), and adjust the belt to specification.
6. Tighten locking bolt and pivot bolt to 25 ft. lbs. (35 Nm).

2.5L Engines
AIR CONDITIONING COMPRESSOR
See Figure 18

Fig. Fig. 18: Drive belt adjustment points-2.5L engines

1. Loosen the idler bracket pivot screw and the locking screws to replace, or adjust belt.
2. Remove the belt and install a replacement.
3. Adjust the belt to specification by applying torque to weld nut on the idler bracket.
4. Tighten locking screw first, followed by the pivot screw. Tighten to 40 ft. lbs. (55 Nm).

ALTERNATOR BELT
See Figure 18
If replacement of the alternator belt is required, the A/C drive belt must first be removed.

1. Loosen the pivot nut, locking nut, and adjusting screw.
2. Remove the belt and install a replacement.
3. Adjust the belt to specification by tightening the adjusting screw.
4. Tighten the locking nut to 25 ft. lbs. (35 Nm).
5. Tighten the pivot nut to 30 ft. lbs. (40 Nm).

POWER STEERING PUMP
See Figure 18
If replacement of the power steering belt is required, the A/C and alternator belts must first be remove.

1. Loosen the locking screw and pivot screw to replace, or adjust the belt.
2. Remove the belt and install a replacement.
3. Using a 1 / 2 in. breaker bar positioned in adjusting bracket slot, adjust the belt to specification.
4. Tighten the locking screw followed by the pivot screw. Tighten to 40 ft. lbs. (55 Nm).

2.6L Engines
ALTERNATOR/AIR CONDITIONING COMPRESSOR BELT
See Figure 19

Fig. Fig. 19: Drive belt adjustment points-2.6L engines

1. Loosen the locking screw, jam nut, and pivot nut.
2. Loosen the adjusting screw.
3. Remove the belt and install a replacement.
4. Adjust the belt to specification by tightening the adjusting screw.
5. Tighten the locking screw followed by the pivot nut. Tighten to 16 ft. lbs. (22 Nm).
6. Tighten the jam nut to 21 ft. lbs. (28 Nm).

POWER STEERING PUMP BELT
See Figure 19
If replacement of the power steering belt is required, the alternator and A/C belt must first be remove.

1. Loosen the pivot screw, and the locking screw.
2. Remove the timing pickup.
3. Remove the belt and install a replacement.
4. Install a 1 / 2 in. breaker bar in the adjusting bracket slot, torque to specification.
5. Tighten the locking screw, followed by the pivot screw. Tighten to 40 ft. lbs. (55 Nm).
6. Install the timing pick-up, and tighten to 160 inch lbs. (18 Nm).

loosen the bolts on the alternator let it slide forward put the new belt on. use a pry bar to hold the alternator as far back making the belt as tight as possible and hold it there while you re-tighten the bolts

Pop the hood of the car and locate the serpentine belt routing diagram. The diagram on the 2003 Chevrolet Impala is on top of the fan shroud. The diagram will be a picture of all of the accessory pulleys and how the serpentine belt is routed among the pulleys. This diagram will give you the exact direction for routing the new belt onto the pulleys. If you cannot find a serpentine belt routing diagram, take a notepad and pen and draw out the exact routing diagram of the old belt across the pulleys.

2 Locate the serpentine belt tensioner. It is located below the alternator on the left front side of the engine. The tensioner on the 3.4 liter, 3.5 liter and the 3.9 liter engines will require a 3/8 ratchet to release the belt tensioner. The 3.8 liter engine will require a ratchet and a 15 mm socket for the belt tensioner. Rotate the belt tensioner clockwise to loosen and remove the belt from the belt tensioner pulley.

3 Slide the old belt from the belt tensioner pulley. Remove the belt from the remaining pulleys and pull the belt from the engine compartment.

4 Route the new belt across the crankshaft pulley first. The crankshaft pulley is the big pulley on the bottom of the engine in the center. Then route the serpentine belt across the remaining pulleys as directed by the serpentine belt routing diagram. Leave the belt tensioner pulley for last.

5 Rotate the belt tensioner clockwise again to relieve the tension and slide the new belt across the top of the belt tensioner pulley. Release the belt tensioner and the belt will tighten up as the tensioner applies pressure to the belt. Make sure the new belt is properly seated in all the pulleys.

6 Crank the engine and inspect the belt again to make sure that it stays seated in the pulleys.

Read more: How to Replace a Serpentine Belt on a 2003 Chevrolet Impala ' eHow.co.uk http://www.ehow.co.uk/how_6120665_replace-belt-2003-chevrolet-impala.html#ixzz1Yi6QLAjb

the belt has a spring loaded tension-er which has to be forced out of the way to relieve tension. should use a 3/8 breaker bar or long handle ratchet.

Welcome to FIxYa.com

Remove Harmonic Pulley

If necessary, remove drive belt and belt pulley for the air

conditioning compressor.

Remove drive Belt or alternator, refer to Drive Belts, Mounts,

Brackets and Accessories.

Attach Special Tool II 2 150 in conjunction with Special Tool il

2410.

Note:

Protect engine bracket from damage.

Insert wood between engine support and Special Tool 11 2

150.

Unscrew central bolt.

Replace crankshaft radial sealing ring, refer to Front Crankshaft

Seal, Service and Repair.

Installation:

Position the vibration damper in such a way that groove and

Woodruff key are aligned.

Replace central screw.

Tightening torque, refer to Engine. Specifications.

Thank you for using FixYa.com

Regards, Lee Davidian

The only cure to fix squeaking belts, is to replace with the new one. When the belts start squeaking noise, then it is the time to check the status of the timing belt or chain, depending on the size of the engine.
The 2000-2004 Nissan Xterra was offered with the choice of 2.4L 4-cylinder or 3.3L V6 engine.
The 2.4-liter 4-cylinder DOHC engine was a pretty good reliable engine, but for this truck, it was underpowered. This engine has a long-lasting timing chain - there is no timing belt to replace.
The 3.3-liter V6 SOHC was also a bit slow on pick-up, but for daily use, it was pretty good, durable, simple engine. This engine has a timing belt that needs to be replaced at recommended intervals. The SE model offered a supercharged version of the same engine with more power.
To get more information, please read my tip :
When should I change the timing belt on my car?
http://www.fixya.com/cars/r6481199-when_change_timing_belt_car

Only the 2.3 liter diesel is an interference engine. The 2.3 Liter gas is not an interference engine. I would guess the belt was not installed correctly. The belt broke so the cam was then out of alignment with the crankshaft. Unless you aligned it correctly it will not start. BTW, the belt must be replaced every 60,000 miles. I asume you have the timing cover off, put it back on and set the crankshaft at the 0 mark on the timing cover, remove the cover and don't touch the crank. near the bottom of the cam gear is a protruding piece of plastic with three raised areas, set the cam timing mark at the first pointer, closest to the passenger side . on the back part of the timing cover is a v shaped pointer set the distributor gear mark at the pointer, remove the distributor cap and verify that the rotor is pointing at #1. Loosen both bolts on the tensioner and using a pry bar carefully pry the tensioner away from the distributor gear, tighten the small bolt on the tensioner. install the new belt starting at the crank, then the distributor gear, then the cam, then over the tensioner pulley. loosen the small bolt and the tensioner will adjust automatically. tighten the tensioner bolts and turn the engine over by hand 2 or 3 times and make sure all marks line up ( the cam mark should now be at the center pointer with the crank at 0). I find it handy to paint a reference mark for the crank inside the timing cover.

These are the instructions from chiltons.
3.3 liter

Before servicing the vehicle, refer to the Precautions Section.

1. 
   
2. Remove or disconnect the following:
   
   • Negative battery cable
     
   • Alternator harness connectors
     
   • Engine under cover
     
   • Alternator belt
     
   • Alternator
     

To install:

1. Install or connect the following:
   
   • Alternator
     
   • Alternator belt. Tighten the adjustment bolt to 12–14 ft. lbs. (16–19 Nm) and the pivot bolts to 16–22 ft. lbs. (22–30 Nm).
     
   • Engine under cover
     
   • Alternator harness connectors
     
   • Negative battery cable
     
   please let me know if you need further assistance with your vehicle
   

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Normally there is a diagram on the inside of the hood of the truck or on the engine that shows the way the belt goes on. First you need to find the adjustment wheel that tightens the belt...it serves no other purpose, just to tighten the belt. Once you find that, loosen it up enough to get the old one off if it's not off already. Other than that I would suggest getting a book from your local library for your car (Chilton) and look at the order it goes into place.