Originally Posted by etgdpu

Hello all,
I would appreciate your help to the following problem:
I come from the 200mm world and I recently built a MBX6. I ran 2 races and both times I faced the same problem, after a while the middle differential gets fried and the silicone oil gets black and comes out of the shafts.
It is obvious that something binds to rear part of the car and makes the center differential to differentiate all the time and increases the temperature and fries the silicone oil, which was 20K (20, 20, 7).
The problem is that we can not discover where exactly is the problem. When the car is on the table everything works exact,y as it should. I asked the local experts to inspect the car and after many attempts, no one can say what is causing the problem. It seems that everything is perfect but after a while the car becomes totally unstable and impossible to drive, because the rear part binds and the center differential has increased temperature and becomes very light. After 30 minutes final, my front tires were totally worn out, while the rears were in very good condition and of course, I suffered from on power understeering.
Thanks in advance
Dimitris