Removing and replacing the camshaft gear/sprocket needs you to start by disconnecting the negative cable from the battery and moving the
Radiator to an empty container so the coolant gets saved. Disconnect the tubes and hoses connected to the radiator, leave those attached to the fans and pull out the radiator. If there is air conditioning in the vehicle, leave all the air conditioner system fittings alone; instead, lift the condenser and receiver/drier assembly, remove the A/C serpentine drive belt idler pulley, disconnect and remove the generator and then release the
A/C Condenser bolts to remove the assembly. After that, take out the serpentine drive belt, crankshaft vibration damper and timing cover and clear any gasket material on the cover. Rotate the crankshaft to make the crankshaft timing mark match with the camshaft timing mark before you take out the camshaft sprocket retaining bolt, both slingers and the assembly of chain and sprockets. For a camshaft pin that is a spring, just use a screw to remove it; and for a dowel-type camshaft pin, center-punch it, use a 4 mm (5/32 inch) drill bit to start a hole and then screw the removal out with a self-tapper. Remove dirt from the camshaft pin hole, squash the middle part of the replacement pin using vise grips and push the pin through the hole until set. Place the camshaft sprocket, crankshaft sprocket and
Timing Chain so the timing notches are in line, leaving 20 pins of the chain between them. Place the crankshaft oil slinger and fasten the camshaft sprocket bolt to 108 Nm (80 ft. lbs.) of torque. After that, you should inspect the valve timing. On each side, add gasket sealer to the new timing case cover gasket with a bead measuring 3 mm (1/8 inch) in thickness onto the joint between the timing case cover and cylinder block. Apply the timing case cover over the oil pan gasket and cylinder block, put the Timing Case Cover Alignment and Seal Installation Tool 6139 in the crankshaft opening and attach both sets of bolts. The 1/4 inch bolts connecting the cover to the block should be tightened to 7 Nm (60 in. lbs.), the 5/16 inch front cover-to-block bolts should be tightened to 22 Nm (192 in. lbs.), the 1/4 inch oil pan-to-cover bolts to 14 Nm (120 in. lbs.) and the 5/16 inch oil pan-to-cover bolts to 18 Nm (156 in. lbs.) torque. Remove the cover alignment tool and fit a new oil seal into the cover after that, then add the vibration damper on the crankshaft and tighten the bolt to 108 Nm (80 ft. lbs.) When you are using air conditioning, add the A/C compressor serpentine drive belt idler pulley, the generator and put in the A/C condenser and receiver/drier assembly. Slide the serpentine drive belt onto the pulleys and secure them as stated by the instructions. Now, set up the radiator, attach the radiator hoses and coolant pipes if needed, complete the radiator level, place the fan and shroud and attach the negative side of the battery cable.