Saildrive Seal Replacement

General
Description: Seal replacement on a Yanmar SD20/SD25 requires removing the rear cover to access the propeller shaft seals
Links

• Instructions: Internal Link
  
• Stuck bolt removal: Internal Link
  

Documents

• Rear cover puller drawing: File:SD20 Rear Cover Puller.pdf (DXF file available and I have an extra plate, $30 plus shipping, contact me for details)
  

Videos

• Video - SD20 disassembly and reassembly: External Link
  

Key Parts:

1. 1:00 Disassembly of the propeller shaft assembly from the saildrive
2. 9:00 Removal of the seals
3. 9:09 Installation of shims and seals
4. 11:07 Installation of propeller shaft assembly into saildrive