My one heart valve does not close all the way and blood leaks back into my heart therefore i do not get as much blood pumped into my body. Does the vitamin C method work to repair valves?
Not specifically, to my knowledge, but there is no harm in trying. It is always a good idea to strengthen the cardiovascular system - including the heart, with vitamin C and lysine.
If I had your problem, I would start supplementing vitamin K1 and K2, e.g. SuperK from Life Extension (lef.org). This vitamin has a hormone-like effect of moving calcium from soft tissue into bones, and may help with the heart valve.