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[Gori 2-Blade Saildrive Propeller Installation and Maintenance Instructions, 6/21/2022] 

 

 

 

Distributed By 

AB Marine, Inc  ▪  747 Aquidneck Ave  ▪  Middletown  ▪  RI  02842

 

Tel: 401-847-

7960  ▪  Fax: 401

-849-0631 

Email: 

Sales@AB-Marine.com

  

▪  Website: www.AB

-Marine.com 

Operating Instructions 

Ahead 

The propeller will operate in the standard forward setting when the blades open, due to the centrifugal 
force of the shaft when in gear. 

Astern 

If the boat has not been used for sometime, it is wise to shift cautiously between forward and reverse a 

few times before going out sailing in order to clean the teeth of the blades and the gears from further 
fouling. 
 

*Gori Propeller disclaims responsibility for any damage caused by overloading the 
engine. In case of doubt about engine loading, contact the authorized engine service 
agent and Gori Propeller. 

Sailing  

When sailing, the blades will fold and the shaft will not spin, giving you less drag and more speed. When 

starting to sail, to fold the Gori blades immediately, go into reverse for a brief second, then back to 
neutral. This stops the shaft immediately and the blades will fold and align with least resistance.  Turn off 
the engine. With mechanical transmissions you can put the shift lever into reverse 

 see your engine 

manufacturer’s instructions. Hydraulic transmissions will not rotate when under sail with the Gori 

propeller. 
 

WARNING!!! 

 

 

Do not start the engine while the boat is out of the water 

 

The prop may have sharp edges… be careful not to cut yourself

 

 

Make sure the blades do not open or close suddenly and trap your fingers 

 

Stop the engine before diving or swimming in the vicinity of the boat 

 

Propeller blades can cause considerable da

mage when rotating … be careful

 

 

Do not remove fish nets, rope or similar from the propeller with the engine running 

 

Check that the propeller works in both forward and reverse before each trip. 

 

If any strange sounds or vibrations are noticed coming from the propeller stop the engine 
and investigate the reasons/solve the problem. 

 

In case of problems in connection with the mounting, use or other function of the propeller, 
contact Gori Propeller or the local agent/importer. 

 

 

Summary of Contents for Gori

Page 1: ...zes 2 Torque Settings 2 Installing the Propeller 3 Removing the Propeller 5 Replacing the Collar Zinc 5 Removing the blades from the Blade Housing 6 Operating Instructions 7 Ahead 7 Astern 7 Sailing 7 Cleaning and Maintenance 8 Annual Maintenance 8 Underwater Installation 8 Parts List 1 Hub 1 x each 2 Blades 2 x each 3 Pins 2 x each 4 Washer 1 x each 5 Shaft nut 1 x each 6 Split pin 1 x each not u...

Page 2: ...de Saildrive 11 5 to 12 5 diameter for Bukh DV 8 SME and DV 10 LSME 22 mm socket 2 Blade Saildrive 11 5 to 12 5 diameter for Volvo Penta MB2A with 50S saildrive 19 mm socket 2 Blade Saildrive 13 to 18 diameter 24 mm socket Torque Settings Saildrive Model Fastener Type Fastener Size Torque Yanmar SD20 25 30 31 Volvo Lombardini Beta Nanni Technodrive SP60 Saildrive Nut M16 X 2 0 45 ft lb 60Nm Yanmar...

Page 3: ...top the propeller shaft from rotating Put a dab on the shaft thread after the nut is torqued in place This is required by Loctite See above socket sizes The supplied Loctite 243 locking glue is Blue and is for disassemble of parts with hand tools Loctite Red is permanent and requires heat to undo 450 F for 5 minutes Applying locking glue correctly is important The surfaces must be clean and degrea...

Page 4: ...octite 243 on the threads of the Four 4 M8 Allen screws 7 8 Install into aft end of hub forks screwing them in until they tighten against the blade pin Total four 4 two 2 per blade pin The second screw is a locking screw Tighten both in place using supplied Allen Wrench On 16 5 18 dia the longer setscrew goes in first the short one on top 11 Check that the blades will move freely from open to clos...

Page 5: ...d 3 Unscrew the two 2 M5 Locking setscrews in the face of the integrated nut washer Note this is on 2020 models 4 Unscrew the shaft nut 5 counterclockwise using required socket See above It may be necessary to lock the output shaft when undoing the shaft nut To do this either put the engine into reverse or use a strap wrench to hold the inner hub 1 5 Pull slide the hub 1 off the output shaft splin...

Page 6: ...0 Note that blades pins and the housing are matched and numbered They should only be reassembled in the correct location that is 1 2 3 4 Remove the blades 5 Remove the gear wheel 13 and the spacer 14 6 Remove the flexible stops 15 using either a flat blade screw driver or pliers 7 When re mounting the blades and gears to the housing it is important to apply Loctite 243 to blade pins lock bolts 11 ...

Page 7: ... blades immediately go into reverse for a brief second then back to neutral This stops the shaft immediately and the blades will fold and align with least resistance Turn off the engine With mechanical transmissions you can put the shift lever into reverse see your engine manufacturer s instructions Hydraulic transmissions will not rotate when under sail with the Gori propeller WARNING Do not star...

Page 8: ...oxy i e PropSpeed zinc spray or any other product that says it negates stops growth Lanolin etc can be used 7 Ensure that the coating is smooth and does not impair the operation of the blades gear teeth bearings seals etc Underwater Installation Underwater installation is NOT recommended but can be accomplished by a skilled diver and appropriate tools and underwater fastener adhesives Loctite 248 ...

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