Contents: Crankshaft pulley / vibration damper ↡ Hub ↡
Crankshaft pulley / vibration damper
Removal
1. Remove the radiator.
2. Remove the auxiliary drive belt.
3. Loosen the mounting bolts and remove the pulley/vibration damper from the crankshaft hub.
Installation
1. Installation is carried out in the reverse order of removal.
Hub
Removal
Caution! To remove the hub from the crankshaft, you must use a puller.
Caution! When tightening the hub mounting bolt, use a torque wrench that provides a tightening torque of 300 Nm.
1. Remove the crankshaft pulley.
2. Fix the hub from turning. To do this, make a special tool from two steel strips connected with a bolt. Fasten the special tool to the hub with bolts.
Original article is on the portal: MercedesMan
3. Unscrew the hub mounting bolt and remove it together with the crank washers.
4. If present, unscrew the lower mounting bolt of the auxiliary drive belt tensioner shock absorber strut and remove the strut pivot shaft.
5. Using a puller, remove the hub from the crankshaft.
6. If present, remove the woodruff key from the crankshaft.
Installation
Location of disc washers on the crankshaft pulley hub mounting bolt
1. Install the woodruff key into the crankshaft keyway.
2. Align the groove in the hub with the woodruff key and install the hub onto the crankshaft.
3. Lubricate the disc washers with clean engine oil, then install them with the convex side facing the hub mounting bolt head (see picture).
4. Apply a thin coat of motor oil to the bolt threads and screw in the hub mounting bolt.
5. Using a special tool or a homemade one, lock the hub from turning and tighten the hub mounting bolt to the required torque.
6. Install the crankshaft pulley.