Propulsion

Discuss marine engines, drives, and propulsion systems.

  1. Props

    Propeller selection, performance comparison, prediction, experience, and modification.
    Discussions:
    531
    Messages:
    6,235
    Latest: Prop Shaft Adaptor: 19 spline to Keyed? baeckmo, Mar 18, 2024 at 2:21 PM
    RSS
  2. Surface Drives

    Surface Drives. Arneson, BPM, Seafury, PSI, Levi, Etc.
    Discussions:
    186
    Messages:
    2,860
    Latest: Longtail Evolution Dave G 9N, Jan 20, 2024
    RSS
  3. Jet Drives

    Jet Drives (pumps, impellers, etc.)
    Discussions:
    459
    Messages:
    4,429
    RSS
  4. Outboards

    2-stroke and 4-stroke outboard motors.
    Discussions:
    1,029
    Messages:
    9,902
    RSS
  5. Sterndrives

    Stern drive lower and upper units, transom and gimbal assemblies, steering, and trim pumps. Mercruiser (Alpha One, Alpha One Generation II, Alpha SS, Bravo One, Bravo Two, Bravo Three, Bravo XR Sportmaster, TRS, Speed Master), IMCO, ILMOR, Konrad, OMC, Volvo Penta
    Discussions:
    547
    Messages:
    3,828
    RSS
  6. Pod Drives

    Volvo IPS, ZF, CMD Zeus, and other pod-drive systems
    Discussions:
    29
    Messages:
    299
    RSS
  7. Inboards

    Inboard and Vee-drive hardware: struts, stuffing boxes, transmissions, coolers
    Discussions:
    535
    Messages:
    4,968
    RSS
  8. Diesel Engines

    Diesel Engines
    Discussions:
    682
    Messages:
    8,497
    Latest: Hino WO4CTI in a 26' Tollycraft clutz, Mar 12, 2024
    RSS
  9. Gas Engines

    Gasoline Engines
    Discussions:
    422
    Messages:
    4,650
    Latest: starting rebuild engine comfisherman, Aug 31, 2023
    RSS
  10. Electric Propulsion

    Electric propulsion systems
    Discussions:
    99
    Messages:
    1,947
    RSS
  11. Hybrid

    Hybrid propulsion such as diesel electric, hydraulic.
    Discussions:
    211
    Messages:
    5,256
    RSS
  12. DIY Marinizing

    A forum to discuss "do it yourself" marinizing of engines / conversion of automotive engines to marine use.
    Discussions:
    276
    Messages:
    5,576
    RSS
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  13. Andy58
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  14. telak
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  15. mackid068
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  16. emrecantasdemir
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  17. DogCavalry
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  18. Ruffner Sedurifa
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  19. Kirk
    Replies:
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    5,307
  20. DCockey
    Replies:
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  21. captdon65
    Replies:
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  22. alby joy
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  23. LePrince
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  24. Guest625101138
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  25. Rasmith
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  26. HeyK20
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  27. yipster
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  28. NikRitz
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  29. tom kane
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  30. boat3630
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  31. marufuddin0
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  32. aybabtme
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  33. brian eiland
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  34. CAPT. Ted
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  35. AAn
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  36. hlblake
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  37. Manateeman
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    1,466
  38. Bradleylarkin
    Replies:
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  39. Silverbreeze
    Replies:
    29
    Views:
    11,587
  40. Andre Raath
    Replies:
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    Views:
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