Ideas for Home Made Mud Motor

Discussion in 'Mud Motors' started by Flutterin'_Wings, Oct 8, 2008.

  1. Flutterin'_Wings

    Flutterin'_Wings Elite Refuge Member

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    chestdeep, Could you email me the list to browne65@hickorytech.net

    Also, what machining did you do? add to the list if I am missing something

    CNC machine - mounting system
    Internal threading - upper and lower bearing housing
    External threading - SS shaft for the prop and nuts.
    maybe something for the grip, throttle and killswitch

    I work at a industrial fab shop so I would be able to get all the gussets cut on the plasma table, or do that myself.

    That voltswagon motor looks cool, but I am guessing it weighs around 300+ pounds?

    I currently have a 24 horse honda, but I am looking to go 27-30's. All I have found are Vanguards and Kohlers. I'd like to go with honda, but if not, which one is more peferred?
     
  2. aka quackshot

    aka quackshot Senior Refuge Member

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  3. aka quackshot

    aka quackshot Senior Refuge Member

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    Runs about 26-27 mph with 2 people. I need to tweak the cav plate because it is trying to run to deep since I went to a larger diameter prop.
     
  4. kill em n grill em

    kill em n grill em Refuge Member

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    pm sent
     
  5. mark f. cheney

    mark f. cheney Refuge Member

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    I use 17 - 4 stainless, All stainless costs more this year than last year, so it is about sixes. 17 - 4 is sticky to thread, but doable. It does come ground. The affordable grade is + / _ .002. This often requires a light grind to get a fit for a bearing race or UJ yoke. But it isn't prohibitive.

    I doubt that there is much lost going through a UJ. I have read engeneering studies that say so. I doubt it. I think that there is more lost with the angle of the longshaft vrs. short shaft.

    Alll journeys that you want to take have their moments of Joy. Often the journey is more fun than the destination. This is often the case for making something that you dream about. So have fun in the journey of making your mud mortor.

    Mark F. Cheney
     
  6. Flutterin'_Wings

    Flutterin'_Wings Elite Refuge Member

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    Does anyone have pictures of built shorttails? I've been trying to find a picture of the internals of them, but I can't find any.

    I would really like to build a motor for a class project, but I dont think theres really that much machining to a longtail. I only have a few months so it may just give me enough time for a longtail.

    For those who have threaded the shaft, and interal thread the tube, how did you go about chucking up the shaft? I am thinking a 4 jaw for sure how to hold the tube without stressing it too much.
     
  7. aka quackshot

    aka quackshot Senior Refuge Member

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    Nothing in there but a belt and some pulleys

    2006_0305Image0033.jpg
     
  8. gmag10

    gmag10 Senior Refuge Member

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    As quackshot said, just 2 pulleys and a belt.

    Not sure why you would need a 4 jaw chuck. I have done everything using a 3 jaw. There is really not much more machining for a shorty than there is for a longtail.

    Mag10
     
  9. DuCrazy

    DuCrazy Elite Refuge Member

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    How about running the mini surface drives in shallow water with a hard bottom like sand or hard pack mud?
     
  10. senoiaslim

    senoiaslim Senior Refuge Member

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    Quack I sent you a PM. Hope you can help?
     

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