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    1. Kit: POcher, by (VIP/Sponsor) PROPELLER is offline
      Builder Last Online: Jan 2023 Show Printable Version Email this Page
      Model Scale: 1/8 Rating:  (3 votes - 5.00 average) Thanks: 3
      Started: 01-08-17 Build Revisions: Never  
      Supported Restoration

      Hi gentlemen!
      A come back... First, many thanks to ThierryD, who inspired me with his gorgeous "resurection"...It's time to me to restore and convert my old T50 to a T46 Surprofilée. Why? I do love the sensual lines and the single overhead camshaft motor of this beauty ...





      Well, found in my barn:






      Yes, some work are needed...
      Let's go!




      First, the front axle, the unique Bugatti front axle.
      In a bad shape now, but...




      Revisited!




      Parts , on the left Pocher, the rest mine, after some work on lathe, milling machine, and so one, and some hours of course...




      Welcome Bugatti lovers!
      "Vive la marque"

      Thanks for looking,
      Dan.


      BUGATTI T46 Surprofilée 1/8
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  1. Egon's Avatar Moderator
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    egon
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    I have a photo of the gearbox in my gallery
    QUOTE QUOTE #17

  2. PROPELLER's Avatar VIP/Sponsor
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    Dan
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    You are welcome Egon! Thank you very much, all references will be useful for me... and others! Can you post the photo in this thread?


    BUGATTI T46 Surprofilée 1/8
    QUOTE QUOTE #18

  3. Egon's Avatar Moderator
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    egon
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    Here you go:
    And: http://www.ebay.de/itm/Pocher-1-8-Di...0AAOSwImRYW9Tr
    Attached Images Attached Images BUGATTI T46 Surprofilée 1/8-gearbox-jpg 
    Last edited by Egon; 01-23-17 at 11:35 AM.
    QUOTE QUOTE #19

  4. PROPELLER's Avatar VIP/Sponsor
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    Dan
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    Thank you very much Egon! Useful indeed... And it's a T46 chassis! In fact, I have some trouble with this area:




    I can't understand this connection...


    BUGATTI T46 Surprofilée 1/8
    QUOTE QUOTE #20

  5. koehlerkment's Avatar Active Member
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    Klaus
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    May 2009
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    Hi Dan,

    do you mean the two rods? If so, I can explain. They are the selector rods. The bronze cylinders are tubes that contain a spring and a steel ball that fixes the selector rod which has three notches (gear engaged/ neutral/ other gear engaged).

    I appreciate your skill.

    Regards,

    Klaus
    QUOTE QUOTE #21

  6. PROPELLER's Avatar VIP/Sponsor
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    Dan
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    Thanks Klaus!
    My trouble is not about the rods, but the connection gearbox/main shaft...


    BUGATTI T46 Surprofilée 1/8
    QUOTE QUOTE #22

  7. koehlerkment's Avatar Active Member
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    Klaus
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    This is a device to allow for some flexibility in the connection gear box-driveshaft. The circular plate on the gear box has four raised blocks that engage in corresponding notches on the drive shaft. Both plates are joined by bolts with strong springs on the drive shaft side. I assume that this was necessary because the swivel radius of the torque arm and that of the connection gear box - drive shaft are not identical. This seems a typical Bugatti construction, a Hardy disc or a universal joint would have served equally well.
    QUOTE QUOTE #23

  8. koehlerkment's Avatar Active Member
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    Klaus
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    Perhaps the picture below shows the construction a bit more clearly.
    Last edited by koehlerkment; 01-23-17 at 04:23 PM.
    QUOTE QUOTE #24

  9. Trapper's Avatar Active Member
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    Peter
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    I would say times, this is a replacement for a cardan shaft, since the transmission is synonymous yes springs. The force could not be transmitted otherwise without limiting the fermentation.
    QUOTE QUOTE #25

  10. PROPELLER's Avatar VIP/Sponsor
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    Dan
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    Thank you guys! But I clearly understand the function... I don't understand the different pieces who are put together!


    BUGATTI T46 Surprofilée 1/8
    QUOTE QUOTE #26

  11. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    If I'm understanding that strange system correctly, you see the black flange which is welded to the drive shaft. The second flange just behind has fingers which engaged to the 4 recesses from the drive shaft's flange. The second flange is also connected to the first one with 8 or 10 bolts; the bolts are under tension with the springs which can be seen touching the first flange. Therefore, the second flange can oscillate according to the suspension travel. The third flange, the brass/bronze one, is part of the transmission.
    From an engineer point of view, just at looking at the picture, this system is....mediocre. Could be that the oscillations were so minimal that the system was doing its job without problem.
    QUOTE QUOTE #27

  12. PROPELLER's Avatar VIP/Sponsor
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    Dan
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    Thank you Trapper and Roger!
    I never thought to springs... Mediocre I agree. On the other side, leather flange, not better!
    If i understand well, it is the system, sorry no CAD at home!




    BUGATTI T46 Surprofilée 1/8
    QUOTE QUOTE #28

  13. Roger Zimmermann's Avatar Yearly Subscriber
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    Roger
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    The springs are not between both flanges, but at the back of the drive shaft's flange. When there is an angle between both flanges, the rear one is pulling the bolt/spring assembly.
    At least, it's the way I'm understanding the system; just remember I never had a look at a real Bugatti as this make is not my glas of red wine (translation: my cup of tea)!
    QUOTE QUOTE #29

  14. Egon's Avatar Moderator
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    egon
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    This site could be a good place to ask the owners of real cars on the questions we never can find: http://www.bugattipage.com/index.htm
    And a chance to get more info here
    Attached Images Attached Images BUGATTI T46 Surprofilée 1/8-retro2017-png 
    Last edited by Egon; 01-24-17 at 03:23 PM.
    QUOTE QUOTE #30

  15. parryj's Avatar Member
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    John
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    Quote Originally Posted by PROPELLER View Post
    Hi gentlemen!

    To John, unfortunately, no secret! Drilling, filling, sanding BUGATTI T46 Surprofilée 1/8 , hours...

    Thanks for looking in,
    Dan.
    ThanksDan!
    QUOTE QUOTE #31

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