Replace the fan belt tensioner on a 2000 ford focus

Replace the serpentine belt

HI, There are only two reasons for this issue. The most common will be a worn, or damaged drive belt. This will cause slippage, in return, decreasing the normal power output of your vehicle. The second issue will be improper tension within the belts structure. You can adjust the tension by unscrewing the pivot and mounting bolts on the alternator. Using a wooden hammer handle or broomstick (or even your hand if you're strong enough), move the alternator one way or the other until the tension is within acceptable limits.

Inspect the belts for signs of glazing or cracking. A glazed belt will be perfectly smooth from slippage, while a good belt will have a slight texture of fabric visible. Cracks will generally start at the inner edge of the belt and run outward. Replace the belt at the first sign of cracking or if the glazing is severe. By placing your thumb midway between the two pulleys, it should be possible to depress the belt 1 / 4 - 1 / 2 in. (6-13mm). If any of the belts, or belt can be depressed more than this, or cannot be depressed this much, adjust the tension. Inadequate tension will result in slippage or wear, while excessive tension will damage pulley bearings and cause belts to fray and crack.

NOTE_ Check the condition of the drive belts, and check the belt tension at least every 30,000 miles (48,000 km) or every 24 months. If tension is not an issue, and the belts show signs of ware, they should be replaced. Tension on the power steering pump belt is adjusted by means of an idler pulley.(on most models)

Drive Belt Replacement WARNING: IF EQUIPPED, DO NOT ALLOW DRIVE BELT TENSIONER (6B209) TO SNAP BACK AS DAMAGE TO DRIVE BELT TENSIONER OR PERSONAL INJURY COULD RESULT.
NOTE: Minor cracks in the V-grooved portion of the serpentine drive belt (8620) are considered normal and acceptable. If the drive belt has chunks missing from the ribs, the drive belt should be replaced.

NOTE: Conditions requiring drive belt replacement are excessive wear, rib chunk-out, severe glazing, frayed cords or other conditions. Replace any drive belt exhibiting any of these conditions.

NOTE: When installing drive belt on pulley, make sure that all V-grooves make proper contact with pulleys.





Drive Belt, Serpentine—Except SHO
Removal

1. WARNING: USE CAUTION WHEN REMOVING OR INSTALLING DRIVE BELT TO MAKE SURE THAT TOOL DOES NOT SLIP FROM DRIVE BELT TENSIONER OR PERSONAL INJURY AND/OR DAMAGE TO DRIVE BELT TENSIONER AND DRIVE BELT MAY OCCUR.
   Using a 15 mm socket or wrench on bolt attaching drive belt tensioner pulley, rotate drive belt tensioner clockwise on 3.0L (2V) and 3.0L (2V) FF, rotate the drive belt tensioner counter clockwise on 3.0L (4V) to remove drive belt from pulleys. Make sure spring keeper engages into slot.
   
   
   Drive Belt Tensioner—3.0L (4V)
   
   
   
   
   

Installation

1. Install drive belt over all pulleys (except drive belt tensioner).
   

1. Rotate drive belt tensioner as described under the removal procedure and install drive belt over drive belt tensioner pulley. Make sure that all V-grooves make proper contact with pulleys. Make sure spring keeper releases or improper belt tension will occur.
   
   
   Pulley, Routing—Accessory Drive Belt 3.0L (2V)/3.0L (2V) FF Engine
   
   
   
   
   
   Item Part Number Description 1 10300 Generator 2 6C348 Idler Pulley 3 3A674 Power Steering Pump 4 19703 A/C Compressor 5 6312 Crankshaft Pulley 6 6B209 Drive Belt Tensioner 7 8501 Water Pump 8 8620 Drive Belt
   
   Pulley, Routing—Accessory Drive Belt 3.0L (4V)
   
   
   
   
   
   Item Part Number Description 1 3A674 Power Steering Pump 2 8501 Water Pump 3 19703 A/C Compressor 4 8620 Drive Belt 5 6312 Crankshaft Pulley 6 6B209 Drive Belt Tensioner 7 10300 Generator

3.4L SHO Engine
Removal

1. Remove the right front wheel and tire assembly. For additional information, refer to Section 04-04.
   

1. Remove the inner fender splash shield.
   

1. Remove the alternator shield.
   

1. WARNING: USE CAUTION WHEN REMOVING OR INSTALLING DRIVE BELT TO MAKE SURE WRENCH DOES NOT SLIP FROMDRIVE BELT TENSIONER OR POSSIBLE PERSONAL INJURY AND/OR DAMAGE TO DRIVE BELT TENSIONER AND DRIVE BELT MAY OCCUR.
   Using a 3/8 inch ratchet on the lifting lug, rotate drive belt tensioner counterclockwise (upward) and engage spring keeper. Remove drive belt from drive belt tensioner.
   

1. Lower vehicle.
   

1. Remove drive belt.
   

Installation

1. Install drive belt over all pulleys (except drive belt tensioner ).
   

1. Raise vehicle on hoist.
   

1. Rotate drive belt tensioner , as described under Removal procedure and install drive belt over drive belt tensioner pulley. Make sure all V-grooves make proper contact with pulleys. Make sure the spring keeper is released or improper belt tension will occur.
   

1. Install the alternator shield.
   

1. Install the inner fender splash shield.
   

1. Install the wheel and tire assembly. For additional information, refer to Section 04-04.
   
   
   Pulley Routing—Accessory Drive Belt, 3.4L SHO
   
   
   
   
   
   Item Part Number Description 1 3A733 Power Steering Pump Pulley 2 6B217 (RH) Idler Pulley 3 19703 A/C Compressor 4 8620 Drive Belt 5 6312 Crankshaft Pulley 6 6B209 Drive Belt Tensioner 7 10346 Generator 8 6B217 (LH) Idler Pulley 9 6B217 (Center) Idler Pulley

Drive Belt, Water Pump
Removal

1. NOTE: If removal of the water pump drive pulley is required, refer to Section 03-03.
   
   Rotate drive belt tensioner clockwise by hand and remove drive belt from drive belt tensioner .
   

1. Remove drive belt from water pump drive pulley and water pump pulley.
   

Installation

1. Position drive belt onto water pump drive pulley and water pump pulley.
   

1. Rotate drive belt tensioner clockwise by hand and install drive belt over top of drive belt tensioner pulley. Make sure all V-grooves make proper contact with pulleys.
   
   
   Pulley Routing—Water Pump Drive Belt
   
   
   
   
   
   Item Part Number Description 1 6B209 Drive Belt Tensioner 2 6A312 Crankshaft Pulley 3 8501 Water Pump 4 8620 Drive Belt

U replace the tensioner or any belt run pulley only if the pulley has excessive wear or the pulley bearing has noise or excessive side to side movement, if the belt is squeaking and the pulleys it runs over are ok and don't have any of the above problems replace the belt, they should be replaced every 60,000 miles are sooner in dusty enviorments like dirt roads.

Preparation

Caution! Remove the ignition key.

Remove
the screw holding the engine stabilizer brace to the bracket on the engine
the screws holding the engine stabilizer brace to the suspension turrets
the engine stabilizer brace.

Applies only to B6xx4T engines:
Remove the plastic pipes between the turbocharger (TC) and charge air cooler (CAC) and between the air cleaner (ACL) and turbocharger (TC). Put them to one side. Remove the clamp from the intake manifold for the turbocharger (TC) for cylinders 1, 2 and 3. Turn the upper section of the pipe towards the firewall.

Relieve the load from the belt tensioner.
Remove the auxiliaries belt. See: Drive Belt\Service and Repair
Remove the upper timing belt cover.
Remove the front timing belt cover.
Lift up the servo reservoir and place it on top of the engine.Note! Ensure that the oil does not leak from the ventilation hole in the filler cap.

Seal the hose between the expansion tank and the radiator.
Disconnect the hose at the tank.
Lift up the expansion tank and place it on top of engine.

Raise the car. Remove
the right front wheel
the plastic nuts on the cover in the fender liner. Install the upper timing belt cover.
Turn the crankshaft clockwise until the markings on the crankshaft and camshaft pulleys correspond.
Turn the crankshaft a further 1/4 turn clockwise. Then turn back counter-clockwise until the markings correspond.
Remove the upper timing belt cover.

Remove the 4 vibration damper screws. Counterhold the crankshaft central nut.

Remove
the vibration damper
the auxiliaries belt
the belt cover behind the crankshaft pulley for the auxiliaries belt. Spray universal oil or similar around the rubber sleeve on the underside of the oil pump.

Remove the rubber sleeve.

Removing the timing belt

Slacken off the belt tensioner
Slacken off the center screw for the belt tensioner slightly.
Hold the center screw still.
Turn the tensioner eccentric counter-clockwise using a 6 mm Allen key.
Turn to 10 o'clock.
Unhook and remove the timing belt.Caution! Do not turn the camshafts or the crankshaft when the timing belt has been removed.


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. When replacing, screw the tension pulley into place using the center screw.
Screw in the center screw by hand.
Ensure that the tensioner fork is centered over the cylinder block rib / bracket.
Ensure that the Allen hole on the eccentric is at "10 o'clock".

Installing the timing belt

Install the belt in the following order:
crankshaft
the idler pulley
intake cam
exhaust cam
water pump
tension pulley.Note! The variable valve timing unit on B6304S engines does not have a return spring. The unit is easily dislodged when reinstalling the timing belt.


Tensioning the timing belt

This adjustment is carried out on a cold engine. A suitable temperature is approximately 20°C / 68°F .
At higher temperatures (with the engine at operating temperature or a high outside temperature for example) the indicator is further to the right.
The illustration shows the position of the indicator when aligning the timing belt tensioner at different temperatures.
Carefully turn the crankshaft clockwise until the timing belt is tensioned. The belt must be in tension between the intake camshaft pulley, the idler pulley and the crankshaft.
Hold the belt tensioner center screw secure. Turn the belt tensioner eccentric clockwise until the tensioner indicator passes the marked position. Then turn the eccentric back so that the indicator reaches the marked position in the center of the window.
Hold the eccentric secure. Tighten the center screw to 25 Nm .
Check that the indicator is in the correct position.

Check

Press the belt to check that the indicator on the tensioner moves easily.
Install the upper timing belt cover. Turn the crankshaft 2 turns. Check that the markings on the crankshaft and camshaft pulley correspond.
Check that the indicator on the belt tensioner is within the marked area.

Finishing

Install the auxiliaries belt around the pulley on the crankshaft.
Install
the rubber sleeve on the underside of the oil pump
the vibration damper.
Use new screws.
Tighten to 35 Nm .
Angle-tighten 50°.
Use the crankshaft center nut as a counterhold
the plastic nuts for the cover in the right-hand fender liner
the right front wheel.

Lower the car.
the front timing belt cover. Tension the auxiliaries belt.
the expansion tank
the hose between the expansion tank and the radiator. Remove the lock grip pliers
the servo reservoir
the upper timing belt cover.

Applies only to B6xx4T engines:
Twist the intake pipe for the turbocharger for cylinders 1, 2 and 3 into position.
Tighten the clamp.
Install the plastic hoses between the turbocharger (TC) and the charge air cooler and between the air cleaner (ACL) and the turbocharger (TC). Tighten the hose clamps.

the engine stabilizer brace. Tighten to 50 Nm
the screw holding the engine stabilizer brace to the bracket on the engine. Tighten to 80 Nm .

Final check
Check and top up if required
coolant level
the servo fluid level. Test drive the engine.

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