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Tamiya TB04 Pro

Old 04-09-2014, 12:14 AM
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84382 TB-04 PRO II Chassis Kit

June release.

Translated:

- Equipped with upright front and rear suspension arms of TRF418 type was developed by competing in races around the world, feeding back data TRF got, turning performance improves more.
- Universal shaft is equipped with a universal shaft that is a combination of clip-on 44mm universal shaft to the front, and the lightweight aluminum swing shaft in the rear. By driving up efficiency and pull even more potential to have of the chassis.

http://kentech.blogs.se/
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Old 04-09-2014, 10:41 PM
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http://www.tamiya.com/english/news/news1405/news0.htm

Here comes that diet everyone was waiting on....
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Old 04-09-2014, 11:05 PM
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Originally Posted by CraigMBA View Post
http://www.tamiya.com/english/news/news1405/news0.htm

Here comes that diet everyone was waiting on....

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Old 04-10-2014, 03:27 AM
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Was going to buy a new motor and esc but that's going to wait, pumped for the tb04 pro II since I missed out on the original one. Can't wait for pictures so we can see exactly what they changed.
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Old 04-10-2014, 07:26 AM
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Dont think there are major changes... just the arms and hubs from the 418. Original pro came with universals in front and dogbones at the back... new one comes with universals all round (steel shaft in front and alum shaft at the rear). Mods most racers probably do from the get go anyway.
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Old 04-10-2014, 03:22 PM
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Im sure they fixed the issue with the rear gearbox shaft not alligning properly too, maybe with cf reinforced chassis. I read somewhere that they are putting hex head screws in the kit, ill try find it again
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Old 04-10-2014, 03:26 PM
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Originally Posted by TB03Racer09 View Post
Im sure they fixed the issue with the rear gearbox shaft not alligning properly too, maybe with cf reinforced chassis. I read somewhere that they are putting hex head screws in the kit, ill try find it again
So I wasn't imagining that misalignment?
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Old 04-10-2014, 05:50 PM
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Originally Posted by TB03Racer09 View Post
Im sure they fixed the issue with the rear gearbox shaft not alligning properly too, maybe with cf reinforced chassis. I read somewhere that they are putting hex head screws in the kit, ill try find it again
I must be blind. My drive train is very smooth
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Old 04-10-2014, 07:39 PM
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I reshimmed my friends TB04 and it wasn't too bad actually. I just didn't like the way they designed the shaft with the spur on it. Could have been done better. We'll see how they fix things up, if they fix anything. I'm looking forward to seeing how they do this on the Evo VI.
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Old 04-10-2014, 07:43 PM
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Originally Posted by Juan Aveytia View Post
I must be blind. My drive train is very smooth
Per Tamiya;

Product Notice

The TB-04 instruction manual has been revised to address an issue with the alignment of the main prop shaft to the rear gear box. By following the assembly procedure in the addendum the alignment issue is alleviated. Note: The car needs to be driven to seat all the moving parts for maximum efficiency. The amended steps in the addendum affect steps 3-8 in both the TB-04 Pro kit and the standard TB-04 chassis. For more info (click here)
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Old 04-10-2014, 08:17 PM
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Originally Posted by MikeR View Post
Per Tamiya;

Product Notice

The TB-04 instruction manual has been revised to address an issue with the alignment of the main prop shaft to the rear gear box. By following the assembly procedure in the addendum the alignment issue is alleviated. Note: The car needs to be driven to seat all the moving parts for maximum efficiency. The amended steps in the addendum affect steps 3-8 in both the TB-04 Pro kit and the standard TB-04 chassis. For more info (click here)
I seen this announcement. When you build a shaft car. Never shim to Tamiyas instructions. Take your time and shim it properly

Last edited by Juan Aveytia; 04-10-2014 at 08:28 PM. Reason: Spelling
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Old 04-10-2014, 08:19 PM
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Originally Posted by Juan Aveytia View Post
I seen this announcement. Hen you build a shaft car. Never shim to Tamiyas instructions. Take your time and shim it properly
+1
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Old 04-11-2014, 12:28 AM
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TB04- the backlash king!
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Old 04-11-2014, 08:03 AM
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Originally Posted by Juan Aveytia View Post
I must be blind. My drive train is very smooth
Mine is quiet too, but there is some misalignment between the trans input shaft and the intermediate shaft. Lotta parts in there to get straight.

Acceptable? Sure. Straight? Don't think so.
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Old 04-11-2014, 10:30 AM
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Originally Posted by Juan Aveytia View Post
I seen this announcement. When you build a shaft car. Never shim to Tamiyas instructions. Take your time and shim it properly
Juan,
You know me, my entire fleet are shaft drive cars. This is not a shimming problem we were discussing. We mentioned an alignment issue. On some cars the transmission shaft does not perfectly line up with the pilot shaft. Mine is only skewed probably about .1mm but that is enough to bind every single rotation.
You can try and shift your gearboxes left and right to help but my misalignment goes to the 2 o clock position so I would have to lift the tranny box slightly too. The easiest fix I found is just to loosen the tolerance of the drive pin into the pilot shaft. You can see in the pic I've flattened the pin ends so that it has some play in the cup. Now the alignment doesnt have to be dead on perfect.
Molded parts can be very tricky from batch to batch. Maybe Tamiya has added more fibers or slowed the cooling to better hold the tolerance of the molded parts. I had one of the early release cars.
Attached Thumbnails Tamiya TB04 Pro-photo-3-.jpg  
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