You just cleaned it up and re-assembled it with no butyl tape, and it doesn't leak?
I was in the same situation where a previous owner had the top replaced and it leaked. I removed the top and sealing frame it it looked like yours, without the silicone stuff. My sealing frame was broken into three pieces. I cleaned it up (a nasty job), installed a new sealing frame with new butyl tape, and it still leaks a little. I now have to start over.