ford fiesta duratec drive belt installation
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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 . . . .
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Filed Under (Buick) by admin on 22-07-2010
The supercharged 3800 engine uses two drive belts. The outer belt drives the supercharger. The inner belt drives the generator, power steering pump, coolant pump and air conditioning compressor. All driven accessories are rigidly mounted to the engine. Drive belt tension is maintained by the spring loaded belt tensioners. Each belt has its own tensioner. A belt squeak when the engine is started or stopped is normal and has no effect on belt durability. The drive belt tensioner can control belt tension over a broad range of belt lengths due to stretching. 1. Remove the battery. 2. Rotate the tensioner (2) counterclockwise to remove the drive belt (1). 3. Remove the supercharger belt (1) from the engine. 4. Rotate the tensioner (2) counterclockwise to remove the drive belt (1). 5. Remove the accessory belt (1) from the engine. Installation Procedure 1. Position the accessory drive belt (1) to the pulleys. 2. Rotate the tensioner (2) counterclockwise to install the drive belt (1). 3. Position the supercharger drive belt (1) to the pulleys. 4. Rotate the tensioner (2) counterclockwise to install the drive belt (1). 5. Install the battery.
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Filed Under (Ford) by admin on 08-02-2011
Drive Belt, Serpentine NOTE: Minor cracks in the V-grooved portion of the serpentine drive belt are considered normal and acceptable. If the drive belt (8620) has chunks missing from the ribs, the drive belt should be replaced. NOTE: When installing drive belts on pulley, make sure that all V-grooves make proper contact with pulleys. Conditions requiring drive belt replacement are excessive wear, rib chunkout, severe glazing, frayed cords, etc. Replace any drive belt that exhibits any of these conditions. Removal 1. WARNING: USE CAUTION WHEN REMOVING OR INSTALLING DRIVE BELT TO MAKE SURE THAT TOOL DOES NOT SLIP. Using a 15 mm socket or wrench on bolt, attach drive belt tensioner pulley. Rotate drive belt tensioner (6B209) clockwise to remove drive belt from pulleys. Pulley Routing, Accessory Drive Belt — 3.8L Engine Installation 1. Install drive belt over all pulleys (except drive belt tensioner). 2. Rotate drive belt tensioner as described under Removal to install drive belt over drive belt tensioner pulley. Make sure that all V-grooves make proper contact with pulleys.
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Filed Under (Mercury) by admin on 03-02-2011
To ensure maximum drive belt life and proper component operation, replacement drive belts (8620) must be the same type and size as the original drive belts . When installing a new drive belt , ensure that it is properly seated on the pulleys. NOTE: Mark the direction of rotation on the drive belt with a marking pen to ensure correct installation if the drive belt is to be reused. Failure to do so may result in drive belt noise. Drive Belt, A/C Compressor Removal 1. Loosen the A/C compressor drive belt idler pulley tensioner bolt. 2. Loosen the A/C compressor drive belt idler pulley adjustment bolt. 3. Remove the A/C compressor drive belt from the A/C compressor clutch pulley (2E884) , A/C compressor drive belt idler pulley and the crankshaft pulley (6312) . Installation 1. Inspect the pulleys for warping or abnormal wear. Replace any damaged pulley. To replace the A/C compressor clutch pulley , refer to Section 12-03B. To replace crankshaft pulley , refer to Section 03-01. 2. Install the A/C compressor drive belt on the A/C compressor clutch pulley , A/C compressor drive belt idler pulley, and crankshaft pulley . 3. Adjust the A/C compressor drive belt tension. Refer to the procedure in this section. 4. Tighten the A/C compressor drive belt idler pulley tensioner bolt securely. Drive Belt, Generator Removal 1. Raise and support the vehicle. 2. Remove the RH engine and transmission splash shield (6775) . 3. Loosen the inner and outer generator-to-generator regulator mounting bracket bolts. 4. Loosen the generator locking bolt.
Filed Under (Mazda) by admin on 11-11-2010
WATER PUMP DRIVE BELT 1. Verify that the water pump drive belt auto tensioner indicator mark does not exceeds the limit. ? If it exceeds the limit, replace the water pump drive belt. (See WATER PUMP DRIVE BELT .) Fig. 21: Water Pump Drive Belt Auto Tensioner Limit Indicator Mark – Malfunction/Worn Belt WATER PUMP DRIVE BELT 1. Remove the plug hole plate. 2. Rotate the water pump drive belt auto tensioner counterclockwise to release the drive belt tension and remove the water pump drive belt. Fig. 23: Locating Water Pump Drive Belt Auto Tensioner 3. Reinstall the water pump drive belt or install a new water pump drive belt. WATER PUMP DRIVE BELT PULLEY REMOVAL NOTE 1. Replace part A of the SST [303-009 (49 UN30 3009)] with the SST [303-457 (49 UN30 3457)]. Fig. 31: Water Pump Pulley Removal Special Tools 2. Remove the water pump pulley using the SSTs.