Crankshaft balancer — removal and installation
Note: This procedure requires a special balancer installation tool and a new crankshaft balancer bolt. Read through the entire procedure and obtain the tool and materials before proceeding.
1. Disconnect the cable from the negative terminal of the battery (see Engine electrical systems).
2. Raise the front of the vehicle and sup- port it securely on jack stands. Then apply the parking brake.
3. Remove the drivebelt, air conditioning compressor belt and on 5.3L/6.2L models the vacuum pump belt (see Tune-up and routine maintenance). Remove the cooling fan and shroud assembly (see Cooling, heating and air conditioning systems).
4. Working under the vehicle, remove the stone shield from below the engine (if equipped).
5. Remove the starter motor (see Engine electrical systems). Install a drive plate holding tool into the ring gear teeth and bolt it to the engine block (see illustration).
10.5 Drive plate holding tool bolted in place
6. Pull the balancer off the crankshaft with a puller (see illustration).
10.6 The use of a three-jaw puller will be necessary to remove the crankshaft balancer — always place the puller jaws around the hub, not the outer ring
Caution: The jaws of the puller must only contact the hub of the balancer — not the outer ring.
Caution: The proper adapter or a long Allen- head bolt should be inserted into the crank- shaft nose for the puller’s tapered tip to push against to prevent damage to the crankshaft threads.
7. Position the crankshaft pulley/balancer on the crankshaft and slide it on as far as it will go.
8. Using the crankshaft balancer installation tool, press the crankshaft pulley/balancer onto the crankshaft.
9. Install the old crankshaft balancer bolt and tighten the crankshaft bolt to the Step 1 torque listed in this Chapter’s Specifications. Remove the old bolt and measure the distance from the snout of the crankshaft to the balancer hub (see illustration). When properly installed, the balancer hub should extend 3/32 to 11/64-inch past the crankshaft snout. If the measurement is incorrect, reinstall the balancer installation tool and press the balancer on the crankshaft until the measurement is correct.
10.9 Before the new crankshaft bolt is installed and tightened, the balancer must be measured for proper installation — when properly installed, the balancer hub should extend 3/32 to 11/64-inch past the crankshaft snout
10. Install a new crankshaft balancer bolt and tighten it to the torque and angle of rotation listed in this Chapter’s Specifications.
11. The remainder of installation is the reverse of removal.