How do I get corret tension on drive belt after fitting

this model is simple ,14mm ring spanner on idles /tensioner with another spanner locked into the back and turn the nut anticlockwise to take the tension ,also on these models is another idler with a nut and 1/4 drive square after fitting the belt then you can adjust the tension a bitwith this one sometimes with anew adjuster tensioner i slacken this first as well when fitting the belt .

Hi, Here is the procedure for a 2002 KIA Sedona 2.9, Engine code KJ. I I can not guarantee the followingprocedure is exactly the same as your car.

Warnings and recommendations Unless otherwise advised by the manufacturer, the following procedures are recommended: Always fit a new timing belt after removal Check the tensioner and idler pulleys; renew if necessary Never turn the engine in the direction opposite to that of normal operation Check the belt(s) for cracks, fraying, wear and oil contamination Note: The engine must be cold before timing belt adjustment Note: Avoid bending, torsion or traction General Before disconnecting the battery cable, check the audio system security code
Always check the timing marks before timing belt removal Removal Disconnect the battery Remove the radiator upper hose Remove the fuel filter unit Note: Do not disconnect the hoses
Remove the engine mount
Remove the bracket Remove the right front wheel Remove the air-conditioning drive belt Remove the ancillary drive belt Remove the ancillary drive belt tensioner Remove the coolant pump pulley Remove the crankshaft pulley Remove the timing cover(s)
Align the timing marks Loosen the tensioner
Remove the tensioner Remove the timing belt Check the gearwheels, tensioner and idler pulley(s) for damage and wear Renew if necessary Installation
Check the timing marks Fit the timing belt
Fit the tensioner
Adjust the tensioner
Align the marks on the tensioner Tighten the tensioner (23.5 Nm) Rotate the engine 2 rotations by hand
Align the timing marks
Check the tensioner Repeat the procedure if required Refit the timing covers Refit the crankshaft pulley (373 - 392 Nm) Refit the coolant pump pulley (17.6 - 28.4 Nm) Fit the ancillary drive belt tensioner Fit the ancillary drive belt Refit the air-conditioning drive belt Refit the front right wheel (88 - 108)
Fit the bracket (36.2 - 53.9 Nm) Refit the engine mount
Refit the fuel filter unit Refit the radiator hose(s) Refill the cooling system Check for leaks Reconnect the battery earth cable Torque settings Tensioner: (23.5 Nm) Timing covers (6.9 - 9.8 Nm) Coolant pump pulley: (17.6 - 28.4 Nm) Special tools Special tools are not required

Start by drawing a diagram of the belt routing. Serpentine belts normaly have 1 spring loaded tensioner (1 pully will have a nut or 3/8 or 1/2 inch drive hole) That will be the tensioner. get spanner or ratchet to fit & lever the tensioner away from the belt. Remove belt. fit new belt to most pullys except the easiest to get to, lever the tenioner back & fit the belt to the last pully, Check the belt is on all pullys properly & your done

Verify you have it on correctly. Make sure you purchased correct belt. Is the tension pulley bad. If it is, it will need to be replaced.

This label shows the accessory belt routing on a Lumina with a 3.1L engine

1. Disconnect the negative battery cable.
   
2. Remove the drive belt shield.
   
3. Fit a 3/8 inch breaker bar or ratchet to the square hole in the tensioner. Lift, or rotate the tensioner off of the drive belt. When the tension on the belt is removed, slide the drive belt from the pulleys.
   

To install:

1. Taking care to follow the proper routing of the belt, slip the belt onto the pulleys. As a help, note that the water pump pulley is usually driven from the back (smooth side) of the belt.
   
2. Fit a 3/8 -inch breaker bar or ratchet to the square hole in the tensioner. Lift, or rotate the tensioner and, with the belt in place, gently release the tensioner.
   
3. Verify that the belt is correctly routed and aligned in the proper grooves of the accessory drive belt pulleys. Inspect the drive belt length scale on the drive belt tensioner for the proper indicated length. If the drive belt length scale does not indicate the proper installed length, the belt may be incorrect, incorrectly installed, worn out or the tensioner may be defective.
   
4. Connect the negative battery cable. Start the vehicle and verify correct operation.
   

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The belt tensioner keeps the belt tight inside each accessory pulley while the engine is running. The tensioner is made up of a spring-loaded arm. If the spring inside of the tensioner becomes loose then it will not be able to hold the belt properly.And belt will also get loose. The belt tensioner is on the engine underneath the alternator. Its fitted by bolt.To loose the belt you will need drive socket and breaker bar .Turn the breaker bar counterclockwise to release tension from the belt.Remove the mounting bolt at the top center of the tensioner arm.The tensioner arm is loose and will easily come out.If you in-case are to replace the tensioner then place the new tensioner in same place and tighten the bolt which you removed.Before removing or moving the belt check the position of the belt passing from each pulley.so that when you fit the parts there is no problem in fitting the parts.
After its done.Start the engine and see that belt and tensioner runs freely and belt moving from each pulley smoothly. ------------- This will help.Thanks.Helpmech.

YEP SOME JEEP 6 CYLINDER ENGINE BELT TENSIONER NOT AUTOMATIC.YOU HAD TO ADJUST BELT TENSION BY LOOSEN THE POWER STEERING PUMP BOLTS AND TURN THE TENSIONER ADJUSTING BOLT TO TIGHTEN OR LOOSEN THE DRIVE BELT.IF YOU HAVE THE AUTOMATIC BELT TENSIONER.EITHER YOU ARE GETTING THE WRONG ONE OR BELT TOO BIG.IF IT WAS ME TAKE TO ANOTHER GARAGE.

Kia Sorento 2003-05
Water Pump - Removal & Installation

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.
   



Fig. Water pump and timing belt assembly-exploded view

To install:



Fig. Water pump bolt locations

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. Refill the coolant.
7. Run the engine and check for leaks.

1. Before servicing the vehicle, refer to the Precautions Section.
2. Drain the cooling system.
3. Disconnect the negative battery cable.
4. Remove the drive belt and the water pump pulley.
5. Remove the timing belt cover, timing belt, auto tensioner and idler pulley.
6. Remove the water outlet fitting, the thermostat case and the water pump fitting.
7. Remove the water pump mounting bolts.
8. Remove the water pump.

To install:




Fig. Water pump bolt locations



Fig. Water pump O-ring installation

1. Clean the gasket surfaces of the water pump body and the cylinder block.
2. Install the new water pump gasket and pump assembly. Tighten the bolts to 12-16 ft. lbs. (17-22 Nm).
3. Install the water pump fitting, the thermostat case and the water outlet fitting.
4. Install the auto tensioner and timing belt. Adjust the timing belt tension, then install the timing belt cover.
5. Install the drive belt, water pump pulley and then adjust the auto tensioner.
6. To adjust the drive belt tension, hang the belt on the pulley of the tensioner and install the tensioner.
   NOTE If the tensioner is already installed, loosen its mounting bolts to allow belt installation
   
7. Install the drive belt.
8. Adjust the belt tension to specification by turning the adjusting bolt clockwise or counterclockwise.
9. Air conditioning belt tension should be 0.28-0.039 inch. Alternator belt tension should be 0.39-0.051 inch. Power steering belt tension should be 0.31-0.051 inch.
10. Torque the tensioner assembly bolt to 33-36 ft. lbs. (45-50 Nm).
11. Refill the coolant.
12. Run the engine and check for leaks.

TY for using Fixya; remember comment and rated this.

First, note how the drive belt is routed, then use a wrench on the tensioner pulley center bolt and turn the tensioner clockwise (four cylinder engine) or counterclockwise (six cylinder engine) to release the drive belt tension. Remove the drive belt from the tensioner and relax the tensioner. Fit the new belt on the other pulleys, then turn the tensioner again and fit the new belt over the tensioner.

The picture is from a different model, but it is similar to what you are working with.


Hope this is helpful to you.

do you mean a drive belt? like a serpintine belt? first find the belt tensioner, use a socket that will fit on the bolt. attach a breaker bar to socket. lift tensioner up, when belt loosens slide belt off of one pulley. slowly release tensioner. remove belt. now is the tricky part. install new belt leaving that last pulley for last. use breaker bar again to lift tensioner, slide belt onto last pulley. slowly release tensioner. check all pulleys to make sure belt is on properly. when ready start engine to see if belt will work properly.