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how to remove timing cover on 2005 nissan altima 2 5

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1995 Nissan-Datsun 200SX Timing Chain/ Front Cover Revised Procedure

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Removal 1. Set # 1 piston at TDC on its compression stroke. 2. Remove the spark plug wires. 3. Remove the rocker cover (see Figure 1). 4. Remove the coolant reservoir tank with bracket and reposition it for clearance. 5. Support the engine with a suitable jack. 6. Remove cylinder head front mounting bracket. 7. Remove engine front mounting, then the engine front mounting bracket. 8. Remove cylinder head front cover 9. Remove the upper chain tensioner (see Figure 2). 10. Wipe off the links of the upper timing chain next to the timing marks on the sprockets. Put paint marks on the timing chain, matching them with the timing marks on the cam sprockets and idler sprocket (see Figure 3) 11. Remove the four (4) front cover to cylinder head bolts. 12. Remove side and lower engine compartment splash covers. 13. Remove the accessory drive belts. 14. Remove the crankshaft pulley. 15. Drain coolant by removing the cylinder block drain plug and opening the radiator drain cock (Refer to MA section of the Service Manual). 16. Drain engine oil. 17. Remove intake manifold support of engine front side. 18. Remove power steering pump, pump bracket and tension rod. Position pump aside for clearance. 19. Remove the thermostat housing (See Figure 4) 20. Remove the lower chain tensioner (see Figure 5). 21. Remove the front exhaust tube. Refer to the “FE” section (Exhaust System) of the Service Manual. 22. Remove the front and rear engine gussets (if equipped) on either side of the oil pan. NOTE: On A/T models, remove the rear plate cover. 23. Remove the oil pan (see Figure 6). a. Insert the Tool between the cylinder block and oil pan. CAUTION: Be careful not to damage the aluminum mating face. Do not insert a screwdriver, or the oil pan flange will become damaged. b. Slide the Tool by tapping it on the side of the Tool with a hammer. 24. Remove the A/C compressor and position it aside for clearance. 25. Remove the A/C and alternator bracket with the alternator. 26. Remove the oil pump drive spacer. CAUTION: Be careful not to scratch the drive spacer when removing it. 27. Remove the front cover bolts and front cover. CAUTION: One bolt is located on the water pump (see Figure 7). *1: Located on engine front mounting bracket. *2: Located on the water pump. *3: Located on the power steering oil pump adjusting bar. CAUTION: Be careful not to tear or damage the cylinder head gasket. 28. Remove the cylinder block to front cover alignment dowels. CAUTION: Do not hit the dowels or the cylinder block will crack. 29. Wipe off the links of the lower timing chain next to the timing marks on the sprockets. Put paint marks on the timing chain, matching them with the timing marks on the idler sprocket and crankshaft sprocket (see Figure 8). Installation 1. Install the crankshaft sprocket, making sure the mating marks face the front of the engine. 2. Install the idler sprocket and lower timing chain using the mating marks and the paint marks made during the removal process. CAUTION:

1996 Nissan Altima GLE TIMING CHAIN REMOVAL AND INSTALLATION MANUAL

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Removal 1. Release fuel pressure. See FUEL PRESSURE RELEASE . Drain coolant from radiator and cylinder block. Drain engine oil. Disconnect all necessary coolant hoses, electrical connectors, vacuum hoses, fuel lines and control cables. 2. Remove front exhaust tube. Remove intake manifold collector supports, and intake manifold. Remove exhaust manifold with catalytic converter. Remove air injection valve pipe. Remove intake air duct. Remove radiator fan and shroud. Remove injectors and fuel rail as an assembly. Remove distributor cap and spark plugs. 3. Set cylinder No. 1 at TDC of compression stroke, ensuring marks on crankshaft pulley and front cover align, and distributor rotor points to spark plug wire No. 1 on cap. Remove cylinder head cover. Remove distributor. 4. Prevent camshafts from turning, and remove camshaft sprocket bolts. Remove camshaft sprocket. See Fig. 13 . Mark and remove camshaft bearing caps in reverse order of installation. See Fig. 16 . Remove camshafts. 5. Loosen cylinder head bolts in 2 or 3 steps, in reverse order of tightening sequence. See Fig. 11 . Remove camshaft sprocket cover. Remove outer (upper) chain tensioner and guide. Remove outer timing chain. Remove idler sprocket bolt. Remove cylinder head. 6. Remove oil pan and oil strainer. See OIL PAN. Remove accessory drive belts. Remove A/C compressor idler pulley (if equipped). Remove crankshaft pulley. Remove front cover. Remove chain tensioner, tensioner arm and chain guides. Remove inner (lower) timing chain and idler sprocket. Remove oil pump drive spacer and crankshaft sprocket. Inspection 1. Inspect chain roller links. Replace chain if roller links are cracked or worn. Inspect cylinder head and cylinder block mating surfaces for warpage. If warpage exceeds specification, machine cylinder head. See CYLINDER HEAD under ENGINE SPECIFICATIONS. 2. If machining reduces cylinder head height to less than specification, replace cylinder head. After machining, rotate camshaft by hand. Replace cylinder head if camshaft does not rotate freely.

1989 Nissan Pickup (200SX & 300ZX) TIMING BELT REMOVAL AND INSTALLATION MANUAL

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REMOVAL & INSTALLATION TIMING BELT Removal (200SX & 300ZX) 1. Disconnect negative battery cable. Release fuel pressure from system. Raise and support vehicle. Remove right wheel and engine side cover (if necessary). Drain cooling system. Remove cooling fan duct. Remove engine coolant reservoir. Remove actuator and remove radiator hoses. Do not allow coolant to contact drive belts. 2. Remove front upper and lower belt covers. See Fig. 1 . Remove drive belts and set No. 1 cylinder at TDC of compression stroke. Remove idler bracket of compressor drive belt and crankshaft pulley. Remove timing belt by removing timing belt tensioner and return spring Inspection (200SX & 300ZX) Visually inspect condition of timing belt. Inspect for cracks, wear, breaks, and oil/coolant saturation. Installation (200SX & 300ZX) 1. Ensure that piston No. 1 is at TDC of compression stroke. Remove valve covers and loosen all rocker shaft bolts. Do not bend timing belt. Install tensioner and return spring. 2. Turn tensioner clockwise and temporarily tighten lock nut. Install timing belt. Align White lines on timing belt with punch mark on camshaft pulleys and crankshaft pulley. Arrow on timing belt must be pointing toward front belt covers. 3. Using Allen wrench, slowly turn tensioner clockwise and counterclockwise 2 or 3 times. When camshafts and crankshaft marks are aligned, tighten tensioner lock nut. See Fig. 2 . Ensure that camshaft lobes are correctly positioned. Tighten rocker shaft bolts in 2 stages. 4. Refill and bleed air from cooling system. To complete installation, reverse removal procedures. Adjust drive belts to proper tension

2002 NISSAN ALTIMA MANUAL A/C TEMPERATURE NOT ADJUSTABLE REPAIR MANUAL

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SERVICE PROCEDURE 1. Remove the following components; • cluster lid “C” (HVAC control surround trim) • fuse box cover • driver’s side instrument panel lower cover (attached with 2 screws). 2. Remove the screw from the center of the cable operated gear (see Figure 2). Figure 2 3. Locate the small (about 1″ dia.) white air mix door gear. Hopefully it is still on the floor. NOTE: If you cannot find the old air mix door gear, order a new gear. Refer to the Parts Information section of this bulletin. 4. To see how it is supposed to fit, temporarily install the gear into the air mix door shaft (see Figure 3). Figure 3 Air mix door drive gear (shown installed) Heater box Cable operated gear Retaining screw (remove) Front TP020106 Cable (do not detach) On the left side of the heater case, remove the screw from the center of the cable operated gear for the air mix door. Note: It is not necessary to detach the cable from the gear or the heater box. Proper pin location for air mix door/door gear with door/gear turned fully clock wise. Front TP010607a The gear can fit two different ways, only one of which is correct. Install the gear and rotate the gear/mix door shaft assembly fully clockwise so the gear’s index pin is at the 2 to 3 o’clock position. Cable (do not detach) Note: If the gear is in the correct spot, the alignment pin will be at the 2 to 3 o’clock position. POSITIONING THE GEAR CORRECTLY IS CRITICAL TO GETTING THE DOOR TIMING RIGHT. 3/5 5. Remove the gear, thoroughly clean the gear shaft of any grease, and apply the glue. See Figure 4. Figure 4 6. Re-install the gear into the mix door shaft (see Figure 5). Figure 5 TP010606a Air mix door gear (back side) Apply Glue to Shaded areas b. Apply plastic glue (3M dp-8005 or equivalent) to the shaft of the air mix door gear in the area where it inserts into the air mix door shaft. a. Thoroughly clean the air mix door gear shaft. Note: It is not necessary to clean the grease from the gear teeth. Front TP020100 Re-install the gear so the gear’s index pin is at the 2 to 3 o’clock position when the gear/mix door shaft assembly is turned fully clockwise. Proper pin location for air mix door/door gear with door/gear turned fully clock wise. 4/5 7. Set the HVAC control temperature dial as shown in Figure 6. Figure 6 8. Re-install the cable operated gear (see Figure 7). Figure 7 9. Operate the temperature control while watching the air mix door gear movement. They should operate freely with no binding. 10.Check the adjustment of the temperature cable as follows: A. Rotate the temperature control knob to the full COLD position (i.e., fully counterclockwise) and confirm the air mix door is fully seated (sealed) in the down position, then B. Rotate the temperature control knob to the full HOT position (i.e., fully clockwise) and confirm the air mix door is fully seated (sealed) in the up position. If the air mix door does not fully seat (seal) in either the full HOT or full COLD position: • Adjust the temperature control cable, with the temperature control knob in the full hot position, using the clip at the heater unit (see Figure 7) 11.Re-install the trim pieces removed in step 1.

1997 Saturn SL2 FRONT COVER And TIMING CHAIN REMOVAL AND INSTALLATION MANUAL

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Removal 1. Disconnect negative battery cable. Raise and support vehicle. Drain engine oil. Remove right front wheel and splash shield. Put a block of wood between cradle and engine torque strut at bottom front end of engine. See Fig. 2 . 2. Remove mount from upper front end of engine, allowing engine to rest on wood block. Remove accessory drive belt and tensioner. Remove accessory belt idler. Remove cylinder head cover. 3. Replace silicone isolators on cylinder head cover screws if deteriorated. Remove power steering pump (leave hoses attached). Remove A/C compressor (leave hoses attached). Raise and support vehicle. Drain engine oil. Remove right front wheel and splash shield. 4. Remove support bracket between intake manifold and engine block. Remove front balancer/pulley using a 3-jaw puller. Disconnect exhaust pipe from exhaust manifold. Install Crankshaft Gear Retainer (SA9104E) onto end of crankshaft, with flat side toward crankshaft gear (sprocket). Crankshaft gear retainer holds crankshaft gear in place during removal of front cover. 5. Remove 4 bolts from front end of oil pan. Using RTV Cutter (SA9123E), cut RTV sealant between oil pan and front cover. Spray penetrating oil onto front cover dowel pins. Remove front cover bolts (one bolt is located above accessory drive belt pulley). Pry front cover from engine block. 6. To prevent pistons from hitting valves, turn crankshaft 90 degrees clockwise as viewed from front of engine until timing mark and keyway are aligned with split line of main bearing cap. Remove timing chain tensioner, guides and chain. While using a 7/8″ (21 mm) wrench to keep camshaft(s) from turning, remove camshaft sprocket bolt(s). Remove camshaft sprocket(s). Installation 1. To prevent pistons from hitting valves, ensure timing mark and keyway on crankshaft are aligned with split line of main bearing cap. Install camshaft sprocket(s) with the letters FRT (front) facing away from cylinder head. Use a 7/8″ (21 mm) wrench to keep camshaft(s) from turning. 2. Install and tighten camshaft sprocket bolt(s) to specification. Rotate camshaft(s) until a 3/16″ (4.8 mm) drill bit can be inserted through timing pin hole(s) and into cylinder head. See Fig. 5 or Fig. 6 . 3. Rotate crankshaft counterclockwise as viewed from front of engine until timing marks at crankshaft sprocket are aligned. Install timing chain, aligning Silver-plated chain links with timing mark(s) on camshaft sprocket(s) and bottom tooth (or teeth) of crankshaft sprocket. See Fig. 5 or Fig. 6 . 4. Install fixed chain guide. Slack part of chain should be on tensioner side of cylinder block. Chain should be tight against fixed chain guide. Install pivoting chain guide. Retract tensioner plunger, and pin ratchet