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TB04 ring gears - getting them dead straight


ninjagaiden

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Guys

 

I'd appreciate some advice. I startedthe build of my TB04 Pro v2 last night with bag A and built up the diffs with all of the shims as per the manual.

 

The ring gear secures onto the diff casing using 4 recessed M2 screws. I made sure it was seated properly on the diff case with the little dimples lining up.I tightened the screws diagonally as carefully as I could, and then built up the rear output drive. everything fits nice and tight in the diff housing, and by eye the ring gear is all squared up, but when I turn the output drive there is a very slight notching at one point in the rotation of the ring gear. I suspect I haven't got the ring gear dead straight. Both diffs I built, I mounted and unmounted the ring gear several times, and both do this ever so slightly.

 

So question 1 is - is this normal and do I justneed to stop worrying about it

 

Question 2 is - if this isn't normal, do you have any tips on how to getthe ring gear absolutely flush.

 

Cheers

 

N

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Yep thats fine, just check that you have fitted them in a cross pattern with the screws and also no over tightened them. As long as they move ok they should be good.

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Thanks. One Internet beer token to qatmix.

 

All the Tamiya's I ever built had ball diffs. I imagine all the plastic gears will run nice and smooth compared to the crunch of metal on metal I've gotten used to.

 

You know the plastic gears in the diff - are they going to be okay with a reasonably powerful 2S setup (Mamba Max pro + 6900kv which I think is 6T in old money) or should I opt for the 5700kv motor, which I think is 7.5T in old money?

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I only raced mine with up to 13.5 boosted. Although even TC mod drivers use plastic gears so I would imagine they will be ok. Honestly though a good 10.5 is rapid nowadays

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