hey guys i have a question, everyone on here seems to be running .18's and bigger engines, i have the hpi nitro star t-15 and i'm having trouble with the one way bearing failing. at first i could remove it, hit it with some nitro/bearing cleaner and it would be good for awhile. but now that doesn't seem to work. the guy at the lhs said not to use bearing cleaner, and he said that the rear plate is bad and replacing it would stop this problem. so i say ok, lets order one, to which he says that hpi has discontinued most parts for the t-15, the back plate being one of those discontinued items. so i am wandering, does anyone here have a back plate that they are not using? if so, let me know. i want to replace the engine with the .18, but i'd like to run the stock engine till it is dead. so any help, or suggestions would be greatly appreciated. thanks all.