Newbie (First Car)

[hell167]

Hi guys, I am building my first RC Car, its a Tamiya TB-02 Nsx. I am new in the RC world. Well, I've built and ran to the ground a Kyosho NSR 500, but thats a bike, and pretty easy and straight forward to build. Well, lets get to the point.. haha. I have finished building and painting the car already, but in the TB-02, there are 2 ball differentials. How do I know if I have tightened the differential enough? All the instruction book saids is that over-tightening will cause the differential to work slow, but it doesn't tell me exactly when it will be perfect. I haven't done much upgrades, just upgraded the 4 metal bearings in the steering arm to ball bearings, and changed to a 23turn motor running on a 4200mAh NiMh battery. Any tips would be greatly appreciated!

[Pipeous]

hold both outdrives with a couple allen wrenches or similar, then spin the center gear with your thumb. it should be very difficult to spin this gear, tighten it up well, but it should still feel smooth when holding the center gear and spinning an outdrive

[Dr. Paint]

And after you drive the car re-check the diffs. Diffs also break in and they need to ve readjusted.