21.1. Front crankshaft oil seal
Removal
1. Remove the groove pulley 1 (figure 3.21a).
2. Secure the puller 3 with three screws (3.2 mm) 4 to the oil seal 2.
3. Remove oil seal 2.
4. Check the crankshaft surface for scoring or wear from the seal.
Installation
5. Install guide sleeve 5 on the crankshaft and push oil seal 2 along the guide sleeve.
Information copied from the website MercedesMan.ru
6. Press seal 2 onto the oil pump. Planting depth: 1.5 mm.
7. Install groove pulley 1.
Figure 3.21a. Front crankshaft oil seal: 1 - Groove pulley; 2 - Seal; 3 - Puller; 4 - Screws; 5 - Guide bushing; 6 - Punch; A - Planting depth.
21.2. Rear crankshaft oil seal
Removal
1. Remove the flywheel 1 (figure 3.216).
2. Press out oil seal 2.
3. Check the flywheel surface for scoring or wear from the seal.
Installation
4. Install oil seal 2 into the timing belt cover and press it in.
5. Install flywheel 1.
Figure 3.21b. Rear crankshaft oil seal: 1 - Flywheel; 2 - Seal; 3 - Punch.