Saildrive Seal Replacement: Difference between revisions

From Seawind1160Wiki
Jump to navigationJump to search
← Older edit
No edit summary
No edit summary
 
(14 intermediate revisions by the same user not shown)
Line 1: Line 1:
Stuck bolt removal: [[File:Removal of frozen bolts on SD20 saildrive.pdf|thumb|Link]] <br><br>
'''General'''<br>
Instructions: [[File:SD20 Seal Replacement Instructions.pdf|thumb|Link]] <br><br>
Description: Seal replacement on a Yanmar SD20/SD25 requires removing the rear cover to access the propeller shaft seals<br>
SD20 disassembly and reassembly video: [https://youtu.be/VTKR7T0mvMo?si=xruUGrQE508RCtuF/ External Link]<br>
'''Links'''<br>
Key Parts:
*Instructions:'' [https://www.strikhedonia.com/yanmar-sd20-saildrive-seal-replacement/ Internal Link]<br>
*Stuck bolt removal:'' [https://www.strikhedonia.com/removal-of-frozen-bolts-on-sd20-saildrive/ Internal Link]<br>
'''Documents'''<br>
*Rear cover puller drawing:'' [[File:SD20 Rear Cover Puller.pdf|thumb|Link]] (DXF file available and I have an extra plate for sale, $30 plus shipping, contact me for details)'' <br>
'''Videos'''<br>
*Video - SD20 disassembly and reassembly:'' [https://youtu.be/VTKR7T0mvMo?si=xruUGrQE508RCtuF/ External Link]<br>
:Key Parts:
# 1:00 Disassembly of the propeller shaft assembly from the saildrive
# 1:00 Disassembly of the propeller shaft assembly from the saildrive
# 9:00 Removal of the seals
# 9:00 Removal of the seals
# 9:09 Installation of shims and seals
# 9:09 Installation of shims and seals
# 11:07 Installation of propeller shaft assembly into saildrive
# 11:07 Installation of propeller shaft assembly into saildrive
<br>
'''Pictures'''<br>
Methods to deal with groves on the propeller shaft
[[File:SD20 Rear Cover Puller.jpg|thumb|SD20 rear cover puller attached]] <br>
# Add/Re-position spacers between the seals
# Machine propeller shaft and add a 316SS sleeve to return to original size
# Replace propeller shaft
Notes: The 99139 SKF Speedi Sleeve For 35.00mm/1.375" Shaft has been installed over the propeller shaft - this is a bad idea.  The Speedi Sleeve is not rated for continuous salt water immersion so it is not 316SS (likely the propeller shaft material).<br>

Latest revision as of 14:54, 18 September 2026

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

Documents

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

Videos

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

Pictures

SD20 rear cover puller attached


Retrieved from "https://strikhedonia.com/Seawind1160Wiki/index.php?title=Saildrive_Seal_Replacement&oldid=1142"