turning

I recently took apart my WuQue 4x4 to clean and relube it but after reassembling the puzzle the inner layers won’t turn. Doing outer layers it works fine but other than the blue/green/white slice (which barely turns) the inner layers won’t turn at all. Any help?

http://www.youtube.com/watch?v=O7sC-kaz62E Looking ahead and turning at a consistent pace is very important in F2L. In this video, I demonstrate that by looking ahead and turning at a steady pace, you don't need to turn extremely fast during F2L to achieve sub 20 averages. Average: 18.55...