Engine: Description and Operation

13 - Engine - Crankshaft, Cylinder block

Sealing flanges and flywheel/drive plate, removing and installing





1- 90 Nm plus 1/4 turn (90°)
^ Always replace
^ Threads and shoulder must be free of oil and grease
2- Crankshaft toothed belt sprocket
3- 15 Nm





4- Seal
^ PTFE seals:
^ Do not add oil or grease to the oil seal sealing lip.
^ Coil spring seals:
^ Lightly oil or grease the oil seal sealing lip.
5- Sealing flange
^ Insert with silicone sealant D 176 404 A2
6- Cylinder block





7- 60 Nm plus 1/4 turn (90°)
^ Always replace
8- Flywheel/drive plate
9- Intermediate plate
^ Must be located on dowel sleeves
^ Do not damage/bend when assembling





10- Sealing flange with oil seal
^ Only replace complete
^ Do not add oil or grease to the oil seal sealing lip
^ Remove protective sleeve first after sealing flange has been slid onto crankshaft journal
PTFE seals:
^ Do not add oil or grease to the oil seal sealing lip.
Coil spring seals:
^ Lightly oil or grease the oil seal sealing lip.

Difference between PTFE and coil spring oil seals

Note:
^ The oils seals for the sealing flange are shown individually for a clearer illustration. Replace all sealing flange seals when replacing sealing flange.





^ PTFE seals (Teflon(R)) -2- have been introduced gradually to replace the coil spring type seals -1-. These seals have wider sealing lip.
^ PTFE oil seals are installed free of oil and grease.
^ If PTFE seals are installed then only these seals may be used as replacement parts.





Fig. 1 Installation position of intermediate plate
- Install intermediate plate onto sealing flange and slide onto dowel sleeves (arrows).