JH3 Series - Saildrive
 
 
Yanmar Saildrive Series Marine Diesel Engines
JH3 Series 75hp

 
Smart escape from conventional drive problems
More and more boat owners are turning to Saildrive power as the smart way to best the problems of conventional stern tube shaft drives. The beautiful simplicity of this compact drive systems makes it the sensible choice for numerous types of boats. Not only is reliability a big element in these designs but also is stability, as they eliminate shaft vibrations, noise, alignment and stuffing box problems.

The logical power-to-prop direct drive combines all the advantages of the outdrive-inboard systems and has now been well accepted in boating circles.

The Saildrive has been found to improve boat balance, give more maneuvrability and better thrust. Drive by the famous Yanmar diesels, these Saildrives put a lot of dependable power in the right place in a boat.

Easily installed with a toughened, thru-hull fitting the new SD50 drive unit smoothly takes the rugged power of the JH diesels, which are now expanded up to 75hp.






 

Why choose Yanmar?



[Click image to enlarge]


   
 
  4JH3-TCE
Cylinders 4
Maximum Output 75hp @ 3800rpm
Cooling System Freshwater
Bore x Stroke 84 x 90 mm
Displacement 1.995 litres
Saildrive Model SD50-T
Dry Weight 261 kg
   
 
 
Saildrive Model SD20

SD50

SD50-T

Reduction gear system Constant mesh gear
with dog clutch
Constant mesh gear
with cone clutch
Constant mesh gear
with cone clutch
Reduction Ratio
(Ahead/Astern)
2.64 / 2.64 2.32 / 2.32 2.32 / 2.32
Direction of
rotation
Input shaft Counterclockwise viewed from stern
Prop shaft Counterclockwise viewed
from stern
Counterclockwise or clockwise viewed from stern
Lubricating System Oil bath
Dry weight - kg
(Saildrive only)
30 kg 40 kg 42 kg
Lubrication oil for saildrive 1GM10C= SAE20/30 API GL4 or GL5 and
SAE4 80W90 or 90
API GL4 or GL5 and
SAE4 80W90 or 90 or
Quicksilver high
performance gear lube
Quicksilver high
performance gear lube
   
 


4JH3-TCE - Performance Curves
 



Download - 4JH3TCE -SD50 Drawings - ZIP file


Drawings are in Drawing Interchange Format (DXF)
 

Download free DXF Viewer here [6.7MB]
 

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