Z3 barn find

Believe it or not, the thing that works really good once you putty knife the goop off is some goo-gone. Gloves are a must. Are you putting butyl back on? I did one without it and it hasn't leaked since I did it (a year ago). I only used some high-density weather stripping from Lowes for about $2.50. It's the same stuff you see in the pictures. I did put some butyl tape between the sealing frame and the bulkhead (only because I had some), but I didn't use any between the sealing frame and the top frame. No leaks. Just make sure when tightening the whole thing back together to start from the middle and work your way out. Good luck.