The front of the seat rail is attached to the front channel flance of the spar box. The rear is cantilevered over the back of the box but no additional supports (gussets) are under them other than 1/4" x 2" Aluminum straps that are sandwiched between the seat rails and the spar box. The straps run the length of the rails. I moved the rails back relative to the seats by putting straps above the rails, and it looks like it is going to be OK with no additional support. It's cantilevered quite a ways behind the spar now, but it feels pretty solid.
I had the electric boost pump overhauled in Wisconsin. I think it was about $400, which was by far the cheapest I found. They put the wrong resister in the first time for the low boost, so we had to send it back once. I think this is the first IV-P pump they had seen.
dave
remove the seat and see how it is attached.
some seats were attached only to the spar; but the kits called for a cantilever to the rear.
you may not have the cantilever; although, if i remember correctly, the previous user, was over six feet tall.
possible:
1. increase cantilever
2. move seat rail attachments
3. thinner seat cushions (use temprafoam)
good luck
how did you make out with the fuel pump issue?
peter
To:
lml@lancaironline.net
Date: Thu, 20 Mar 2014 07:54:09 -0400
From:
skinner3410@sbcglobal.net
Subject: [LML] Need to move front seats aft on a IV-P
Has anyone with a IV-P found a good way to move the front seats aft about 3-4 inches? I don't need the rear seat leg room, but I could use more in the front. Moving the rails rearward would cantilever them quite a ways behind the spar box. I haven't figured out how I would support the rear ends of the rails.
Dave Skinner
845CM