Filed Under (Mazda) by admin on 16-06-2011
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APPLICABLE MODEL(S) / VINS 2001-2007 Truck / B-Series (2.3L Only) 2005-2006 Tribute (2.3L Only) 2003-2007 Mazda6 (2.3L Only) 2004-2007 Mazda3 (2.0L & 2.3L) 2006-2007 Mazda5 2006-2007 Mazda MX-5 2006-2007 Mazdaspeed6 2007 Mazda CX-7 2007 Mazdaspeed3 DESCRIPTION When removing or replacing the crankshaft pulley on a 2.0L (Mazda3 only) or a 2.3L engine, be sure to follow the Workshop Manual procedures. The crankshaft pulley is not keyed to the crankshaft, and when loosened, it may move out of position on the crankshaft. The engine MUST be re-timed whenever the crankshaft pulley bolt is loosened, removed, or replaced. For normal aspirated engines, follow the Workshop Manual procedures and time the engine using Special Tools (Crankshaft Alignment Pin 303-507, Camshaft Alignment Timing Tool 303-465 and a standard M6 X 1.0 X 2.25 bolt). For direct injection spark ignition engines, follow the Workshop Manual procedures and time the engine using Special Tools (Crankshaft Alignment Pin 303-507, Camshaft Alignment Timing Tool 303-1061 and a standard M6 X 1.0 X 2.25 bolt). Please refer to the Mazda Job Aid on MS3 under Training titled “Engine Timing Verification and Correction LF2.0L and L3/L3T 2.3L” for more information. CAUTION: Engine damage will occur if the engine is not re-timed properly. Refer to applicable Workshop Manual (Section 01-10 – MECHANICAL – 2.0L (Mazda3 only) or 2.3L). NOTE: Damage to an engine caused by not following proper Workshop Manual procedures may result in denial of warranty claims or back charges.
Filed Under (Ford) by admin on 05-06-2011
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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 (Rover) by admin on 05-06-2011
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The above application is prone to the timing belt teeth lifting off the belt in service due to operating the belt with insufficient tension. The following instructions have been produced to assist in the fitting of your new timing belt, giving simple hints and tips, which should help avoid problems caused by adopting an incorrect fitting / adjustment procedure. For instructions for the removal of the engine components required to gain access to the timing belt, please refer to the vehicle workshop manual. Note:- Incorrect tension of the timing belt, can lead to the teeth lifting from the belt, resulting in belt failure, and subsequent major engine damage. Special Tools Required: 1) Timing belt tension gauge, (accurately calibrated), Part No’s: either Rover KM4088 or Borroughs BT33-86F 2) Two 8mm Allen keys (for tensioner adjustment) 3) Short length of round steel bar (for flywheel timing location) Fitting Procedure: 1) Before the old timing belt is removed, the crankshaft should be rotated clockwise to align the timing mark on the crankshaft pulley with the edge of the metal bracket, which forms part of the lower timing belt cover (See I). To lock the crankshaft in this position, which is 90 degrees before top dead centre, insert a steel rod of the correct diameter into the hole on the gearbox / engine adaptor plate, positioned on the front facing lower edge of the cylinder block (See diagram B), and locate with the corresponding hole in the flywheel. The timing marks on the camshaft gears should now be aligned at the 3 o’clock position for the left hand gear, and the 9 o’clock position for the right hand gear (See II). Undo the timing belt tensioner Allen bolt and remove tensioner. The old timing belt can now be removed (See III). Check the condition of the geared teeth on the camshaft, crankshaft, and water pump drives. Check the tensioner, water pump, and idler bearings. Fit the new timing belt over the drive gears, ensuring the timing marks set at ‘I’and‘II’ have not moved. Refit the tensioner using the anti-slip washer ‘IV’ supplied with the new timing belt. The anti-slip washer should be fitted between the tensioner and the backplate, with the abrasive side facing towards the tensioner. Note: A new anti-slip washer must always be fitted. Non modified vehicles will not have the anti-slip washer fitted. Rotate the tensioner, using the Allen key drive to set the initial pre-load tension, sufficient to prevent the timing belt from slipping over the toothed drives, then tighten the Allen bolt to 45Nm.
Filed Under (Suzuki) by admin on 26-05-2011
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NOTE: Samurai & Sidekick 1) Remove rocker cover. Rotate crankshaft until zero degree (TDC) timing mark of timing belt cover is in line with timing mark on crankshaft pulley. 2) Cylinder No. 1 should be at TDC on compression stroke. Remove distributor cap, and ensure rotor is pointed upward at distributor hold-down bolt and to No. 1 terminal of distributor cap. If not as described, rotate crankshaft 360 degrees. 3) Measure valve clearance between adjustment screw and valve stem using thickness gauge. Check intake valve clearance of cylinders No. 1 and 2 and exhaust valve clearance of cylinders No. 1 and 3. 4) Turn crankshaft one complete revolution (360 degrees). Check intake valve clearance of cylinders No. 3 and 4 and exhaust valve clearance of cylinders No. 2 and 4. Ensure clearance is within specification. See VALVE CLEARANCE SPECIFICATIONS table. 5) If clearance adjustment is necessary, loosen lock nut and turn adjusting screw. After adjusting clearance, tighten adjusting Swift DOHC uses hydraulic lifters. Adjustment is not required. screw lock nut to 11-14 ft. lbs. (15-19 N.m) on Samurai or 90-108 INCH lbs. (10-13 N.m) on Sidekick. On all models, recheck clearance. VALVE CLEARANCE SPECIFICATIONS TABLE ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ Application SOHC Engines Samurai, Sidekick 8-Valve TBI & Swift (1) Engine Cold Exhaust ……………………. .006-.008 (.15-.20) Intake …………………….. .005-.007 (.13-.17) Engine Hot Exhaust ……………………. .010-.012 (.25-.30) Intake …………………….. .009-.011 (.23-.27) Sidekick 16-Valve PFI Engine Cold Exhaust & Intake ………….. .0031-.0047 (.08-.12) Engine Hot Exhaust & Intake ………….. .0047-.0063 (.12-.16) DOHC Engine Swift (1) …………………………………. (2) (1) – Swift is available with 1.3L DOHC and SOHC engines. (2) – Hydraulic valve lash adjusters are used. Adjustment is not required. ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ Swift SOHC 1) Remove rocker cover. Remove right side inner fender apron extension to enable timing marks to be seen. Align crankshaft pulley timing mark with TDC mark on timing belt cover. 2) Remove distributor cap. Ensure rotor is pointing upward toward distributor hold-down bolt and to No. 1 terminal of distributor cap. If not as described, rotate crankshaft 360 degrees. 3) Measure valve clearance between adjustment screw and valve stem using thickness gauge. Check intake valve clearance of cylinders No. 1 and 2 and exhaust valve clearance of cylinders No. 1 and 3. Turn crankshaft one complete revolution (360 degrees). Check intake valve clearance of cylinders No. 3 and 4 and exhaust valve clearance of cylinders No. 2 and 4. 4) Ensure clearance is within specification. See VALVE CLEARANCE SPECIFICATIONS table. If clearance adjustment is necessary, loosen lock nut and turn adjusting screw. Hold adjusting screw while tightening lock nut to 11-14 ft. lbs. (15-19 N.m). Recheck clearance. In. (mm)
Filed Under (Ford) by admin on 06-04-2011
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Engine Front Cover If the engine front cover (6019) is being removed to check timing chain deflection, refer to Timing Chain Deflection Procedure as outlined in Section 03-00. SPECIAL SERVICE TOOL(S) REQUIRED Description Crankshaft Damper Remover Vibration Damper and Seal Replacer T82L-6316-A Vibration Damper Remover Adapter Removal 1. Remove engine (6007) from vehicle. Refer to procedure in this section. 2. Loosen drive belt tensioner (6B209) and drive belt (8620) . 3. Remove water pump pulley retaining bolts and water pump pulley (8509) . 4. Remove retaining bolts and disconnect heater water outlet tube (18663) from water pump (8501) . 5. Disconnect electrical connector at camshaft position sensor. 6. Disconnect electrical connector at crankshaft position sensor (CKP sensor) (6C315) . 7. Remove retaining bolt and disconnect radiator lower hose tube (8291) from water pump . NOTE: If the vibration damper and crankshaft pulley have to be separated, mark the vibration damper and crankshaft pulley so that they may be reassembled in the same relative position. This is important as the vibration damper and crankshaft pulley are initially balanced as a unit. NOTE: If the vibration damper is being replaced, check if the original vibration damper has balance pins installed. If so, new balance pins (6A328 or equivalent) must be installed on the new vibration damper in the same position as the original vibration damper. The crankshaft pulley (new or original) must also be installed in the same relative position as originally installed. 8. Remove crankshaft pulley (6312) and vibration damper assembly using Crankshaft Damper Remover T58P-6316-D and Vibration Damper Remover Adapter T82L-6316-B. 9. Remove four retaining bolts and remove brace from A/C bracket and P/S bracket. 10. Remove oil bypass filter (6714) . Tool Number T58P-6316-D T82L-6316-B CAUTION: The engine front cover cannot be removed without lowering the oil pan (6675) . 11. Remove oil pan . Refer to procedure in this section. CAUTION: Do not overlook the engine front cover retaining bolt located behind the oil pump and filter body (6603) . The engine front cover will break if pried upon and all retaining bolts are not removed. 12. Remove engine front cover retaining bolts. It is not necessary to remove water pump . 13. Remove engine front cover and water pump as an assembly. 14. Remove engine front cover gasket and discard. Water Pump Tightening Sequence Installation NOTE: Lightly oil all bolt and stud bolt threads before installation except those specifying special sealant. 1. Clean gasket surfaces on the engine front cover and cylinder block (6010) . If reusing the engine front cover , replace crankshaft front seal (6700) . Refer to Crankshaft Pulley and/or Damper and/or Crankshaft Front Seal in this section. 2. If a new engine front cover is to be installed: Install oil pump and filter body . Clean water pump gasket surface. Position a new water pump housing gasket (8507) on the engine front cover and install water pump . Install water pump retaining bolts. Tighten to 20-30 Nm (15-22 lb-ft). 3. Lubricate crankshaft front seal with clean engine oil XO-10W30-QSP or -DSP or equivalent meeting Ford specification ESE-M2C153-E. NOTE: Gasket and Trim Adhesive D7AZ-19B508-B or equivalent meeting Ford specification ESE-M2G52-A is recommended to hold the engine front cover gasket (6020) in position while the engine front cover is installed. 4. Position a new engine front cover gasket on the cylinder block and install the engine front cover / water pump assembly using dowels for proper alignment. 5. Install the engine front cover retaining bolts. Tighten to 20-30 Nm (15-22 lb-ft). Install the capscrew (Part No. N804841) nearest the oil bypass filter flange last, and tighten last. Apply Loctite® or equivalent to bolt prior to installation. Refer to illustration under Step 13 of removal procedure. 6. Install oil pan as outlined. 7. Install oil bypass filter . 8. Coat pulley sealing surface with clean engine oil XO-10W30-QSP or -DSP or equivalent meeting Ford specification ESE-M2C153-E. NOTE: When using silicone rubber sealer, assembly must occur within 15 minutes after sealer application. After this time, the sealer may start to setup, and its sealing effectiveness may be reduced. 9. Apply a small amount of Silicone Gasket and Sealant F1AZ-19562-A or equivalent meeting Ford specification WSE-M4G320-A2 to crankshaft keyway. 10. Position crankshaft key (6B316) in the crankshaft keyway.