Hello. I have rebuild my tamiya hornet and i have ran it two times so far. I have a hobbywing 1060 esc and its ball raced and has a black sports tuned motor. The issue is that it seems there is a power loss and a weird noise, like a zzzzzzzz on the air it sounds okay and it spins great. On the road, i punch forward and seems the noise is faster than the move, like its slipping. I thought it was the rear wheel adaptors but those were okay. I also took apart the gearbox and all gears, diff and all pins and stuff were okay and present. Now cause i bought it second hand and it was my first time building it, i didnt have the tamiya grease, so i used the Hudy graphite grease. I didnt follow the manual, but instead i put a generous amount of the grease in all gears etc, until they all became black Would this be the issue? and if yes, can i clean and reuse the parts? gears, counter gear, diff etc? can i wash them with water and let them dry? how do i clean them? and should i use again that graphite grease or should i get a tamiya grease? if i cant find one, what other grease can i use?
thank you all