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3JH2 - 3JH3 series
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4JH3 series
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Yanmar Pleasure Boat Marine Engine Help
Propeller Selection - GM, 3JH2 and 3JH3 series
- The propeller rotation must be as shown or the transmission life will be severely reduced.
- Any propeller fitted to a saildrive must have a center rubber bush, the same as an outboard motor, or the life of the saildrive leg could be seriously reduced.
- Propeller pitch is determined by boat speed and is calculated for individual boats.
| Engine model | Gearbox | Propeller diameter | Propeller rotation | ||
|---|---|---|---|---|---|
| model | ratio | Inches | millimeters | Left or Right hand | |
| 1GM10 | KM2P | 2.21 | 12 | 295 | RH |
| 2.62 | 13 | 325 | RH | ||
| 3.22 | 15 | 370 | RH | ||
| saildrive | SD20 | 2.62 | 13 | 325 | left hand |
| v-drive | KM3V | 2.36 | 12 | 305 | RH |
| 2.61 | 13 | 325 | RH | ||
| 3.20 | 15 | 370 | RH | ||
| 2GM20 | KM2P | 2.21 | 13 | 340 | RH |
| 2.62 | 15 | 375 | RH | ||
| 3.22 | 17 | 425 | RH | ||
| saildrive | SD20 | 2.62 | 15 | 375 | left hand |
| v-drive | KM3V | 2.36 | 14 | 350 | RH |
| 2.61 | 15 | 375 | RH | ||
| 3.20 | 17 | 425 | RH | ||
| 3GM30 | KM3P | 2.36 | 15 | 380 | RH |
| 2.61 | 16 | 405 | RH | ||
| 3.20 | 18 | 460 | RH | ||
| saildrive | SD20 | 2.62 | 16 | 405 | left hand |
| v-drive | KM3V | 2.36 | 15 | 380 | RH |
| 2.61 | 16 | 405 | RH | ||
| 3.20 | 18 | 460 | RH | ||
| Engine model | Gearbox | Propeller diameter | Propeller rotation | ||
|---|---|---|---|---|---|
| model | ratio | Inches | millimeters | Left or Right hand | |
| 3JH2E | KBW10E | 2.14 | 15 | 390 | RH |
| 2.45 | 16.5 | 420 | RH | ||
| 2.83 | 18 | 460 | RH | ||
| 3JH2CE saildrive | SD20 | 2.62 | 17 | 440 | left hand |
| 3JH2BE down angle | KM3A | 2.33 | 16 | 410 | RH |
| 2.64 | 17 | 440 | RH | ||
| 3.21 | 19.5 | 495 | RH | ||
| 3JH2-TE | KBW10E | 2.14 | 16 | 400 | RH |
| 2.45 | 17 | 440 | RH | ||
| 3JH2-TCE saildrive | SD20 | 2.62 | 18 | 450 | left hand |
| 3JH2-TBE | KM3A | 2.33 | 16.5 | 425 | RH |
| 2.64 | 18 | 460 | RH | ||
| 3JH3E | KM3P4 | 2.36 | 17 | 430 | RH |
| 2.61 | 18 | 460 | RH | ||
| 3.20 | 20 | 510 | RH | ||
| 3JH3BE | KM3A | 2.33 | 17 | 430 | RH |
| 2.64 | 18 | 460 | RH | ||
| 3JHCE1 saildrive | SD40 | 2.62 | 18 | 460 | left hand |
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