citroen dispatch fan belt repair
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Filed Under (Jeep) by admin on 03-01-2011
Correct drive belt tension is required to ensure optimum performance of the belt driven engine accessories. There are different types of adjustment gauges for checking either a serpentine or a V-type belt. Use the correct gauge when checking belt tension. Place gauge in the middle of the section of belt being tested (between two pulleys) to check tension. Do not allow the gauge (or gauge adapter) to contact anything but the belt. BELT SCHEMATICS The belt routing schematics are published from the latest information available at the tingle of publication. If anything differs between these schematics and the Belt Routing Label, use the schematics on Belt Routing Label. This label is located in the engine compartment. BELT REPLACEMENT OR ADJUSTMENT- LEFT HAND DRIVE Belt tension is adjusted at the power steering pump bracket and idler pulley assembly. 1. Disconnect negative battery cable from battery. 2. Loosen idler pulley bolt at the power steering bracket. 3. Loosen adjusting bolt until belt can be removed from pulleys. 4. Remove belt. INSTALLATION 1. Check condition of all pulleys. CAUTION: When installing the serpentine accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction. 2. Install new belt. 3. Using serpentine belt tension gauge, tighten adjusting bolt until belt reaches proper tension. Refer to Belt Tension at the rear of this section for proper belt tension. 4. After belt is tensioned correctly, tighten idler pulley bolt to 47 Nm (35 ft. lbs.) 5. After idler pulley has been tightened into position, recheck belt tension. Adjust if necessary. BELT REPLACEMENT OR ADJUSTMENT- RIGHT HAND DRIVE (4.0L) 1. Disconnect negative battery cable from battery. 2. Loosen lower alternator mounting bolt and nut. 3. Loosen upper alternator mounting nut. 4. Loosen adjusting bolt at upper alternator bracket until belt can be removed from pulleys. 5. Remove belt. INSTALLATION 1. Check condition of all pulleys.
Filed Under (Ford) by admin on 05-06-2011
Common causes of camshaft timing belt failure on the above vehicles are due to incorrect operating tension, or ingress of dirt, water, or debris entering the timing belt cover. Predominantly on Fiesta models a high percentage of camshaft timing belt failures occur after the ancillary poly ‘V’ drive belt has failed, where strands of material off the broken belt have entered the timing belt cover. This is especially so where an ancillary belt has been fitted that does not contain “Kevlar” based materials. It is therefore important to always remove the timing belt cover to check for belt debris if the ancillary belt has failed. Any contamination that enters the timing belt cover can become compressed between the surfaces of the camshaft timing belt and drive pulleys. This causes wear to both the belt teeth, backing surface, and damage to the drive pulleys, resulting in premature failure of the camshaft timing belt. Later engines have modifications to improve the sealing of the belt cover around the crankshaft pulley, to reduce the level of outside contamination. Incorrect tensioning of the belt during installation will adversely affect the life of the belt. Before fitting a new belt it is important to check and observe the following points :- 1) Right Hand Inner Wing Splash Shield (Fiesta, Escort, Mondeo) This must be fitted and undamaged. 2) Timing Belt Cover Check that all components of the cover are fitted and undamaged. Ensure the latest type of modified cover is fitted. 3) a) Toothed Drive Pulleys Check that the tooth profiles are not worn or damaged. On vehicles built before January 1994 special attention should be given to the nylon toothed pulley situated below the camshaft pulley in a clockwise position on the belt drive (see diag item 4). This should be changed to a modified steel pulley (Ford No. 7053802) plus bolt (6701537). Ensure that the Camshaft and Injection Pump sprockets are free to rotate on the drive locations when the retaining bolts are slackened off. b) 4) a) b) c) Water Pump, Idler and Tensioner Pulleys Check that the belt running surfaces are not worn or damaged. Check that the flanges are running true and not damaged. Check that the water pump, and pulley bearings are in good condition, to ensure correct belt alignment. 5) Crankshaft Pulley The toothed pulley is in two parts. The rear section (Injection Pump Drive) is located onto the crankshaft by a small drive pin. The front section (Camshaft and “Poly V” belt drive) engages onto the rear pulley via a small vee protrusion on the rear face. Should the central fixing bolt for the crankshaft pulley come loose, or an old bolt re-used (Stretch bolt design), it is possible for fretting to take place damaging the locations. The crankshaft and camshaft pulleys can then move out of timing alignment, resulting in valve and piston contact damage. Replacement Procedure As the vehicle is fitted with two timing belts, one to drive the Camshaft, and one to drive the Injection Pump drives, which are driven off the crankshaft pulley, it is strongly recommended that both belts are replaced at the same time. NOTE: Special tools are required to lock the crankshaft, camshaft, and injection pump in the correct angular location when changing the belts, to ensure correct timing position. IMPORTANT: Ensure the engine is cold (not run for 4 hours) before commencing working as this will affect the setting of the timing belt tension and could lead to premature failure. Continued . . . .
Filed Under (Chevrolet) by admin on 20-08-2010
Removal Procedure 1. Remove the upper fan shroud. 2. Install the J 46406 to the fan clutch. 3. Remove the fan hub nut from the water pump in a counterclockwise rotation. 4. Remove the fan clutch bolts from the rear of the fan blade. 5. Separate the fan clutch from the fan blade. Installation Procedure 1. Install the fan clutch bolts from the rear of the fan blade. 2. Notice: Refer to Fastener Notice in Service Precautions. Install the fan clutch bolts. Tighten the bolts to 23 Nm (17 ft. lbs.). 3. Install the fan assembly. 4. Install the J 46406 to the fan clutch. Tighten the nut clockwise to 56 Nm (41 ft. lbs.). 5. Install the upper fan shroud.
Filed Under (Isuzu) by admin on 21-09-2010
Removal 1. Disconnect battery ground cable. 2. Remove air cleaner assembly. 3. Remove radiator upper fan shroud from radiator. 4. Move drive belt tensioner to loose side using wrench then remove drive belt. 5. 6. 7. 8. 9. 10. 11. 12. Remove cooling fan assembly four nuts, then the cooling fan assembly. Remove cooling fan drive pulley assembly. Remove idle pulley assembly. Remove serpentine belt tensioner assembly. Remove power steering pump assembly. Remove crankshaft pulley assembly using J-8614-01 crankshaft holder, hold crankshaft pulley remove center bolt, then the pulley. Remove right side timing belt cover then left side timing belt cover. Remove lower timing belt cover 2000 Isuzu Truck VehiCROSS (4WD) V6-3.5L 13. Remove pusher. Caution: The pusher prevents air from entering the oil chamber. Its rod must always be facing upward. 14. Remove timing belt. Caution: 1. Do not bend or twist the belt. otherwise its core could be damaged. The belt should not be bent at a radius less than 30 mm. 2. Do not allow oil or other chemical substances to come in contact with the belt. They will shorten the life. 3. Do not attempt pry or stretch the belt with a screw driver or any other tool during installation. 4. Store timing belt in a cool and dark place. Never expose the belt to direct sunlight or heat. Installation Note: For correct belt installation, the leper on the belt must be able to be read as viewed from the front of the vehicle. 2000 Isuzu Truck VehiCROSS (4WD) V6-3.5L 1. Install timing belt. 1. Align groove of crankshaft timing pulley with mark on oil pump. Align the mark on the crankshaft timing pulley with alignment mark (white dots line) on the timing belt. Secure the belt with a double clip. Note: When timing marks are aligned, No.2 piston will be on top Dead Center.
Filed Under (Ford) by admin on 18-08-2010
1. Disconnect the battery ground cable. 2. Remove the drive belt and the drive belt tensioner. 3. Remove the (A) three nuts and the (B) three bolts and remove the outer engine front cover. 4. Raise and support the vehicle. 5. Remove the RH engine splash shield. 6. Remove the bolt and the crankshaft pulley. 7. Align the timing marks. 8. Remove the timing belt. 1 Use an 8 mm Allen wrench and turn counterclockwise. 2 Insert a suitable holding tool to lock the timing belt tensioner in place. 3 Remove the timing belt. 9. Inspect the belt for signs of oil contamination. Installation 1. NOTE: Install the timing belt over the sprockets in a counterclockwise direction starting at the crankshaft. Keep the belt span from the crankshaft to the camshaft tight while installing the timing belt over the camshaft. Install the (A) timing belt and remove the (B) holding tool to release the (C) timing belt tensioner. 2. Rotate crankshaft two times and recheck the timing marks. 3. Install the crankshaft pulley. 4. Install the RH engine splash shield. 5. Lower the vehicle. 6. Install the outer engine front cover. 7. Install the drive belt tensioner and drive belt. 8. Connect the battery ground cable.