Thai Longtail/mudmotor With 6hp Lifan/honda

Discussion in 'DIY Marinizing' started by pistnbroke, Feb 26, 2009.

  1. pistnbroke
    Joined: Jan 2009
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    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    I have a 5 m 1 m wide rough bottomed canoe you can get about 18 kts

    BUT it depends on the pitch of the prop and if you can get up on the plane ..thats usually about 15 kts and all that depends on the weight of the boat ..weight distribution and hull area ...
     
  2. Killiant
    Joined: May 2010
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    Location: Ireland

    Killiant New Member

    Diesel longtail motor.

    Hi, I am new to this site. I saw your post and thought you might be able to help me. I am looking to make a diesel longtail motor for an oyster barge. The engine I have in mind is approx. 50hp. The barge unladen is about 2.5 tons and laden about 9 tons. At the moment I go through about one 70hp petrol outboard every 18 months to 2 years. What I am looking for is advice or drawings (if available) on the shaft and propellor. Would using a gearbox be an option or just a clutch plate for neutral and just a forward gear? Also what would be the best way to couple the engine to a.the gearbox if used or b. if it is just direct drive? I have seen various options on youtube videos such as chain and sprocket, cv joints, and belts and pulleys.
     
  3. rmenasco
    Joined: May 2010
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    Location: Florida

    rmenasco Junior Member

    Pistn, my boat is only about 2.25m by 1m and it only about 30kg, so my boat should be able to go a good bit faster. So you don't think the 2.5 would be able to get it up on a plane? I just wanna make sure that I make the right motor choice before I commit to something!
     
  4. pistnbroke
    Joined: Jan 2009
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    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    if you can take the weight go for the bigger motor /do you have to carry the motor and boat to the launch site ? all to be considered inc shull shape and your weight .....how many burgers does it have tdo carry ? !!!
     
  5. rmenasco
    Joined: May 2010
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    Location: Florida

    rmenasco Junior Member

    burgers? Never heard of that.... It only needs to hold myself (170lbs) a few dozen duck decoys, shotgun and shells. Maybe 220lbs total.
     
  6. pistnbroke
    Joined: Jan 2009
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    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    ie are you a fat ******* ?

    Result....
     

    Attached Files:

  7. rmenasco
    Joined: May 2010
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    Location: Florida

    rmenasco Junior Member

    lol I wouldn't call myself a fat *******! About how much did you spend in materials to build yours. You are in Australia right?
     
  8. pistnbroke
    Joined: Jan 2009
    Posts: 1,405
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    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    bearings .seals tube shaft and the rest was bits out the shop ...about $100
     
  9. rmenasco
    Joined: May 2010
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    Location: Florida

    rmenasco Junior Member

    guessing you that all the parts from mcmcaster?
     
  10. pistnbroke
    Joined: Jan 2009
    Posts: 1,405
    Likes: 33, Points: 48, Legacy Rep: 404
    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    sorry dont understand that .....mcmcaster what is that ?
     
  11. ben2go
    Joined: Jul 2008
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    Location: Upstate, South Carolina,USA

    ben2go Boat Builder Wanna Be

    http://www.mcmaster.com

    US hardware supplier that carries unusual and hard to find items.They all so deal in small quantities where most other companies only deal in cases or lots.
     
  12. pistnbroke
    Joined: Jan 2009
    Posts: 1,405
    Likes: 33, Points: 48, Legacy Rep: 404
    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    looks brilliant ..you could build the whole unit from there bits ...Particularly like the double row chain sprockets ......12 teeth for the engine end but would need an adaptor from the shaft dia down to the sprocket .... get teeth with multiple of 3 then they will go in the lathe ok .....or put the engine on the lathe bed and set it going and turn the shaft down ...thats what they do in Asia !!!!
     
  13. notsofast
    Joined: Nov 2009
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    Location: Philippines

    notsofast Junior Member

    Those props are hand-made by a local prop smith here in the Philippines. Stainless steel sheets are shaped by hammer & anvil then welded onto threaded hub (5/8" thread) then polished.
     
  14. muddin redneck
    Joined: Jun 2009
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    Location: Muscatine, Iowa

    muddin redneck DO IT IN THE MUD!!!

    do you know what it would cost or if it was possible to ship these props to the usa
     

  15. notsofast
    Joined: Nov 2009
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    Location: Philippines

    notsofast Junior Member

    Redneck, sent you PM.
     
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