Begin by draining the cooling system and then remove the radiator and fan assembly. Unscrew the retaining bolt and withdraw the pulley/damper assembly from the front end of the
Crankshaft, using a special puller for this operation. Partly unscrew the
Oil Pan bolts at the forward edge, followed by the removal of the timing cover bolts, and then withdraw the timing cover and gasket. Remove the oil slinger from the end of the crankshaft if installed. At this point, check the timing chain for wear by attaching a socket and torque wrench to the camshaft sprocket bolt, applying force in the normal direction of crankshaft rotation (30 ft-lb if the cylinder head is in position with rocker gear, or 15 ft-lb if the cylinder head has been removed). Prevent the crankshaft from rotating if necessary, and measure the movement of the chain when applying force in the reverse direction; if it exceeds 1/4-inch, a new timing chain is required. Unscrew the camshaft sprocket bolt and withdraw the sprocket and chain, disengaging the chain from the crankshaft sprocket teeth. For installation, reverse the removal steps, ensuring the timing marks on the gears are aligned. Apply a 1/4-inch bead of RTV-type sealant where the oil pan gasket meets the oil pan seal, use a new timing cover gasket, and apply engine assembly lubricant to the crankshaft seal. A special threaded tool or a large wooden block and hammer will be necessary to install the vibration damper.