Propeller Shaft Grooves

General
Description: It is an issue that Gori propellers installed on a SD20 saildrive will form grooves over time which will result in sea water penetration. Notes

• Methods to deal with groves on the propeller shaft:

1. Add/re-position spacers between the seals
2. Machine propeller shaft and add a 316SS sleeve to return to original size
3. Replace propeller shaft

• Periodic reposition the seals using shims (P/N 196315-02880 Circlip, Needle 52) allow longer life from the propeller shafts
  
• Propeller shaft diameter: 35mm (where the seals ride)
• Propeller shaft material: Likely 17-4 ph
• Unacceptable repair: Installing a Speedi Sleeve (99139 SKF for a 35.00mm/1.375") - the Speedi Sleeve is not rated for continuous salt water immersion

Pictures

Grooves worn into the propeller shafts

Refurbished propeller shaft after machining and adding SS sleeve