goodroi - 8:13 pm on Oct 11, 2013 (gmt 0)
It sounds like you are saying rankings for site 2 were bad.
Then you redirected site 1 (which has a link warning) to site 2 (which has no warning) and rankings became much better.
Then you became scared and you deleted the redirect and soon after the rankings for site 2 became very bad.
Is that the situation?