Filed Under (Mazda) by admin on 16-06-2011
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
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 (Ford) by admin on 11-04-2011
Removal and Installation 1. Disconnect the battery ground cable. For additional information, refer to Section 414-00. 2. Remove the parts in the order indicated in the following illustration and table. Item Part Number 1 14A464 2 14489 3 9F715 4 N806549-S 5 9J558 3. To install, reverse the removal procedure. Item 3: IMRC Actuator Rods Installation Note 1. New plastic actuator rod retainers must be installed any time the IMRC rods are disconnected. Item 5: IMRC Actuator Installation Note 1. Before installing the IMRC actuator, be sure to rotate the driver motor plate until the levers make contact with the set screws, then rotate the motor until the motor bracket bolt holes are aligned with the holes in the lower intake manifold. Description Camshaft position (CMP) sensor electrical connector (part of 12B637) Intake manifold runner control (IMRC) actuator electrical connector (part of 12B637) IMRC actuator rods (2 req’d) (part of 9J559) Installation Note IMRC actuator-to-intake manifold bolts (3 req’d) IMRC actuator Installation Note
Filed Under (Infiniti) by admin on 08-04-2011
DTC FOR VARIABLE VALVE TIMING CONTROL FUNCTION APPLIED VEHICLES: All 1997 – 2007 with Variable Valve Timing APPLIED ENGINES: VQ35; VH41, VK45; VK56 IF YOU CONFIRM The MIL is on with any of the following DTCs stored: P0011, P0014, P0021, P0024, P1110, P1135, NOTE: The engine may also have Camshaft Sprocket rattle noise and/or other engine noise. ACTION Do Not replace the variable valve timing Solenoid Valve or the Sprocket(s) without performing the complete diagnostics indicated in the EC section of the Service Manual. The first steps in the complete diagnostic is to make sure the: • Engine oil is at the operating level; add oil if needed. Refer to the Service Manual for low oil level diagnoses if needed. • Oil pressure is normal when measured with a gauge at the pressure switch port. Refer to the Service Manual for low oil pressure diagnoses if needed.
Filed Under (Ford) by admin on 08-04-2011
CAUTION: The maximum amount by which the engine management system will adjust the camshaft timing (VCT control unit) is limited to 2 degrees. As a result of this an extremely high degree of accuracy is required for any work which affects the valve timing. NOTE: Steps which only apply to certain model variants and therefore do not apply to all vehicles are clearly marked. NOTE: The positions of the engine mountings and engine support insulators are described looking from the transaxle towards the engine. 1. Disconnect the battery ground cable. For additional information, refer to Section 414-01. 2. Loosen the front right-hand wheel nuts. 3. Raise and support the vehicle. For additional information, refer to Section 100-02. 4. Remove the front right-hand wheel. 5. Lower the vehicle. 6. Remove the air cleaner resonator and air cleaner outlet pipe. 1. Disconnect the mass air flow (MAF) sensor electrical connector. 2. Disconnect the intake air temperature (IAT) electrical sensor. 3. Remove the one bolt and two nuts. 4. Release the retaining clips. 7. Disconnect the speed control cable. 1. Disconnect the cable from throttle valve. 2. Gently move the cable up and down and pull it out of the retaining bushing. 3. Press the retaining bushing out of the bracket. 8. Disconnect the throttle cable. 1. Remove the plastic clip. 2. Unhook the cable. 9. Remove the timing belt. For additional information, refer to Timing belt in this section. 10. Remove the camshaft pulleys. 1. Remove the blanking plug from the exhaust camshaft pulley. 2. Remove the exhaust camshaft pulley. 3. NOTE: Hold the camshaft by the hexagon with an open-ended wrench to stop it from turning. Remove the intake camshaft timing belt pulley. 11. Remove the bolts from the variable camshaft timing (VCT) oil feed flange. 12. NOTE: Working evenly in several stages, unscrew each bolt two turns at a time. NOTE: Loosen the bearing caps in the indicated sequence. Loosen the camshaft bearing caps. 13. NOTE: Loosening sequence. Remove the camshafts. 1. Remove the camshaft bearing caps. Remove the camshaft seals. 3. Remove the intake camshaft. 4. Remove the exhaust camshaft with the oil feed flange. Installation 1. NOTE: Use a thumb to press the locating pins of the gasket into the holes. Press a new gasket into the oil feed flange. 2. Prepare the exhaust camshaft for installation. 1. Insert the oil feed ring into the oil feed flange. 2. Slide both components together onto the exhaust camshaft.