Auto Repair Manual Free Download and ReviewsFree download ebook pdf files automotive manual

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1. Drain coolant by removing cylinder block drain plug and opening radiator drain cock. Drain engine oil. Remove oil pan. See OIL PAN . Remove power steering pump and position it to side. Remove idler pulley and bracket as well. Set No. 1 piston at TDC on its compression stroke. CAUTION: Be careful not to tear or damage cylinder head gasket. NOTE: Engine may need to be lowered to provide clearance for chain tensioner housing of timing cover to clear frame. Engine height may need to be adjusted when removing cover. 2. Remove crankshaft pulley. Remove oil separator. Remove front cover. Remove following parts; Lower timing chain tensioner (push piston in and insert a suitable pin into hole). Chain tension arm. Lower timing chain guide. 3. Remove upper timing chain. See REMOVAL (ALTIMA) – UPPER TIMING CHAIN . Wipe off links of timing chain next to timing marks on sprockets. Apply paint marks to lower timing chain, matching them with mating marks on crankshaft sprocket and idler sprocket. See Fig. 17 . Remove lower timing chain and sprocket.

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1. 2. 3. 4. 5. 6. 7. Drain engine oil. Remove the oil pan (Refer to “Removal” under “Oil Pan” in the Service Manual). Remove the power steering pump and position it to the side. Remove the idler pulley and bracket as well. Set # 1 piston at TDC on its compression stroke. Remove the crankshaft pulley. Remove the oil separator. Remove the front cover. NOTE: , , „ „ . , . , . Engine may need to be lowered to provide clearance for the chain tensioner housing of the timing cover to clear the frame. Engine height may need to be adjusted when removing the cover. CAUTION: Be careful not to tear or damage the cylinder head gasket. 9. Remove the following parts: A Lower timing chain tensioner (push piston in and insert a suitable pin into the hole). A Chain tension arm. A Lower timing chain guide. 10. Remove the upper timing chain (refer to “Removal of Upper Timing Chain” in this bulletin)

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Removal Procedure 1. 2. 3. 4. 5. 6. Remove the camshaft cover. Raise and support the vehicle. Remove the #1 cylinder spark plug. Rotate the crankshaft in the engine rotational direction clockwise, until #1 piston is at top dead center (TDC) on the compression stroke. Remove the engine front cover. Lower the vehicle. Important: The timing chain tensioner must be removed to unload chain tension before the timing chain is removed. If not removed, the timing chain will become cocked and it will be difficult to remove. 7. Remove the timing chain tensioner. 8. Remove the fixed timing chain guide access plug. 2002 Pontiac Grand AM L4-2.2L VIN F 9. Remove the fixed timing chain guide. 10. Remove the upper timing chain guide. 11. Use a 24 mm wrench to hold the camshafts from turning.

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1. Install crankshaft sprocket, making sure mating marks face front of engine. Install idler sprocket and lower timing chain using mating marks on timing chain, crankshaft sprocket and idler sprocket. See Fig. 11 . 2. Install chain guide and chain tension arm. Install lower chain tensioner and remove pin securing piston into tensioner body. Remove all traces of liquid gasket from cylinder block and front cover mating surfaces. Install new crankshaft seal in front cover. 3. Apply a continuous bead of RTV sealant to front cover. See Fig. 12 . Also, place RTV sealant on head gasket surface. Install front cover to engine. 4. Install oil strainer and oil pan. See OIL PAN . Install oil pump. To complete installation, reverse removal procedure. Tighten all fasteners to specification. See TORQUE SPECIFICATIONS .