Door Removal on 2008 2700SE:
Brad here is what is involved in getting the screen door and fiberglass door out of my 2008 2700SE: should be a similar job for the 3100se
Remove windshield wiper(s)
Remove center windshield section. There is a screw on the port side of the hinge for the center windshield section. Remove this screw and then slide the section up and out.
Remove the rubber moldings at the bottom of the port and starboard windshield sections.
Remove the screws that are concealed by the moldings.
Remove the screws that attach the support struts to the windshield sections.
Remove each windshield panel by sliding upward. There is a track that attaches each section to the side window.
Remove the screws attaching the helm to the boat.
They used adhesive sealant along the front edge of the helm. Be patient in prying it up, it will come loose.
Once the helm is free, move it out of the way enough to expose the two tracks at the top of the doors. The track for the outer door has to be removed in order to get the door out. Lift up on the door far enough to slide the track out of the way.
Remove the screws that attach the sliding bracket to the bottom of the outer door. The outer door should be able to come out.
I don't think that the bottom track for the outer door has to be removed in order to get the screen doors bottom track out, but I removed it anyway. I think it made things easier, plus I wanted to clean everything while I was in this deep.
There are 4 screws holding the screen door into the top track. Remove these screws along with the bottom track and the screen door comes out.
Reverse the procedure to re-install.
It sounds like a lot of work and it did take some time. But none of it was terribly hard, just time-consuming. I did it without any help.
Hope this helps,