Cfarer,
I don’t remember exactly how long the lines were. If I had to guess I think I purchased 8’ of each from West Marine for the vent and fill, and 12’ for the fuel line. When you get your hoses out, you can just measure.
I did use a hole saw attachment on my drill to cut into the coffin, then a Sawzall to make the larger rectangular cut to get enough room for my hand to reach the stuck fill hose. I wish I could tell you the job is easy, but just try to be patient when things get tough. I definitely recommend pulling the old hoses “up” through the gunwale to give you the most leverage. The vent line was fairly easy, the fuel was a bear though. Drill a hole through it and attach a large screwdriver or something similar so you can use both hands pull out the fill hose. And go slow and steady.
Good luck,
Lee
Figured I owed you all an update. It was a two day affair, but the fill, vent, and every inch of feed line on the boat has been replaced. I planned on following your lead of pulling the fill from the top. I cut the 6 inch access hole around the same location you did.. maybe a bit higher. I noticed my fill line was in far, far worse shape than yours. There was no way I could pull it from the top, it disintegrated as I did so. If I used a screwdriver for leverage, or if I even man handled it a bit, it was going to let go. It seemed hopeless to pull from the bottom, too. My fuel tank is new, so I did not remove it. It was slightly in the way to make the cut I wanted to. I couldn't get the fill line to even budge from either end. I tried dish soap etc, no luck. After several hours, I gave up before I had a heat stroke.
Round two was today. I used a saw to cut into the coffin, basically from the place the fill line entered to about 7 inches to the right. I made a large rectangle which allowed me to see and manipulate the angle the fill line went. I attached a pvc coupler and glued the old fill line to the new from the top end, then wrapped in duct tape. I carefully fed the weak part of the fill downwards, as I pulled from the bottom. I was shocked when it actually started moving. Once I got some momentum, it was game over. I had it out within 5 minutes, and I had it cut and installed in 20. The vent line was a breeze. Reinstalled hose clamps, buttoned up the floor, and I was done.
Thanks for the help and for posting your tutorial, some of the tips and tricks I learned proved invaluable. The glued pvc coupler plus duct tape is a great idea and worked well, even with my severely rotten line. Just need to change my fuel filter and I'm ready for the water again.
Cfarer