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98 altima timing cover removal

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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

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.

TIMING BELT COMPONENTS FOR REMOVAL AND INSTALLATION MANUAL

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TIMING BELT REMOVAL 1. DRAIN ENGINE COOLANT 2. REMOVE ENGINE UNDER COVER 3. REMOVE AIR CLEANER DUCT 4. REMOVE DRIVE BELT, FAN WITH FLUID COUPLING AND WATER PUMP PULLEY (See step 5 in water pump removal in Cooling System) 5. REMOVE RADIATOR ASSEMBLY (See steps 5 and 6 in radiator removal in Cooling System) 6. REMOVE NO.3 TIMING BELT COVER (a) Remove the oil filler cap. (b) Using a 5 mm hexagon wrench, remove the 6 bolts and belt cover. 7. REMOVE NO.2 TIMING BELT COVER Using a 5 mm hexagon wrench, remove the 3 bolts, belt cover and gasket. If you are unable to loosen the bolt on the right because the PS pump pulley interferes with the hexagon wrench, first remove the pulley as follows. (a) Using SST to hold the pulley, remove the nut. SST 09960-10010 (b) Remove the pulley. 8. REMOVE DRIVE BELT TENSIONER Remove the 3 bolts and tensioner. – ENGINE ENGINE MECHANICAL EG-19 9. SET NO.1 CYLINDER TO TDC/COMPRESSION (a) Turn the crankshaft pulley, and align its groove with timing mark “0″ of the No.1 timing belt cover. NOTICE: Always turn the crankshaft clockwise. (b) Check that the timing marks of the camshaft timing pulleys are aligned with the timing marks of the No.4 timing belt cover. If not, turn the crankshaft 1 revolution (360?). 10. REMOVE TIMING BELT FROM CAMSHAFT TIMING PULLEYS HINT (Re-using timing belt): Place matchmarks on the timing belt and camshaft timing pulleys as shown in the illustration. (a) Alternately loosen the 2 bolts, and remove them, the tensioner and dust boot. (b) Disconnect the timing belt from the camshaft timing pulleys. 11. REMOVE CAMSHAFT TIMING PULLEYS Using SST, remove the bolt for the timing pulley. Remove both timing pulleys. SST 09960-10010 (09962-01000, 09963-01000) 12. REMOVE CRANKSHAFT PULLEY (a) Using SST, loosen the pulley bolt. SST 09213-70010, 09330-00021 (b) Remove the SST and pulley bolt

1999 Dodge Intrepid PRIMARY TIMING CHAIN And SPROCKETS REMOVAL AND INSTALLATION MANUAL

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Removal 1. Remove upper radiator crossmember. Disconnect fan assembly connector. Remove fan assembly. Remove drive belts. Using Crankshaft Pulley Holder (8191), hold crankshaft pulley and remove center bolt. Using a 3-jaw puller, remove crankshaft pulley. 2. Remove upper intake manifold. See INTAKE MANIFOLD . Remove electrical and vacuum harness retaining clips from valve cover studs. Remove ignition coils. Remove valve covers. Remove power steering pump and set aside. Remove drive belt tensioner pulley and bracket. Remove timing chain cover. 3. Align crankshaft sprocket timing mark to mark on oil pump housing. Mark on oil pump housing is 60 degrees ATDC of number one cylinder. See Fig. 10

2003 Lexus ES 300 TIMING BELT Removal And Installation Manual

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TIMING BELT Removal (ES 300) 1. Raise and support vehicle. Remove right side front wheel. Remove right fender apron seal. Remove accessory drive belts. Lower vehicle. Disconnect engine coolant reservoir hose from water outlet. Disconnect ground strap connectors. 2. Remove engine moving control rod and engine mounting bracket No. 2 (right side), located near timing belt cover. Remove generator-to-engine bracket for access to timing belt covers. 3. Using Pulley Holder (09213-54015) or equivalent and Handle (09330-00021) or equivalent, hold crankshaft pulley. Remove crankshaft pulley bolt. Using puller, remove crankshaft pulley. Remove No. 1 and No. 2 timing belt covers and gaskets. See Fig. 1 . Remove transverse engine mounting bracket from front of engine. Note direction of timing belt guide installation for reassembly reference. Remove timing belt guide. 4. Temporarily install crankshaft pulley bolt and washer in crankshaft. Using crankshaft pulley bolt, rotate crankshaft clockwise until timing mark on crankshaft sprocket aligns with timing mark on oil pump body. See Fig. 2 . 5. Ensure timing marks on camshaft sprockets are aligned with timing mark on No. 3 timing belt cover. See Fig. 2 . If timing marks are not aligned, rotate crankshaft clockwise one full revolution (360 degrees). Remove crankshaft pulley bolt. 6. If reusing old belt, ensure there are 3 installation marks and front arrow marked on belt. See Fig. 3 . If not, place mating mark on belt where it contacts the crankshaft and camshaft sprockets. Also, mark belt with arrow showing direction of rotation. 7. Alternately loosen 2 bolts, and remove timing belt tensioner and dust boot. DO NOT hold tensioner with push rod facing downward. Remove timing belt in the following sequence: No. 1 idler pulley, right camshaft sprocket (firewall side), No. 2 idler pulley, left camshaft sprocket (front of vehicle side), left camshaft sprocket (front of vehicle side), water pump pulley, then crankshaft sprocket