Chevrolet 12551138 Balancer,Crankshaft

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To remove the 4.5 L engine, the first step is to disconnect the negative battery cable and take off the serpentine belt. Then, lift up and support the vehicle properly before removing the right front wheel and tire. Take away the right front air deflector as well as support car body- strut at right side and support engine cradle's right side. Lower the cradle on its right hand side and remove the balancer bolt together with washer of harmonic. Using puller, take off balancer.To install an engine, put lubricant between hub and seal using EP lube; then position balancer on crankshaft aligning key slot in hub w/key on crankshaft; bottom hub out on crankshaft using installer tool& install harmonics bolt & washer at that point lighten it to 60 ft lb Raise cradle's right side & raise while positioning ball joint to steering knuckle While raising, support body &right side of engn cradls & insert bolts in itInstall R/Front A/Defl., R/Front Whl/Tire, lower Veh Finally connect Negative-batt cable For 4.9L engine same procedure but tightens harmonic balancer bolt at 70 ft lb For 4.6L Engine unhook negative battery cable; release tension from accessory drive beltOn jack stands raise vehicle-Remove Right Front Wheel-Remove splash shields & brace Support eng cradle remove bolts on R/Side Disconnect RSS sensor use flywheel holder tool to takeout balancer bolt Lower eng cradle install pilot tool into crankshaft Use puller tool to remove hb To install put balancer on crankshaft , use a tool to get HB through Clean hbolt threads tighten it 105 ft-lbs +120 degrees Raise englcradle insb then reconnect suspension position sensors Remove flywheel holder t/install oil pan-t/transmission brace Install Wheelhouse splash shields and Right front wheel Lower vehicle install accessory drive belt Finally connect negative battery cable.