fixed sagging floor and squeaking around vent
After becoming embarrassed at the shape of my new campers floor was, when we got home from a trip i decided to fix it. It felt like you were walking on a sponge and squeaked very bad any where near the rear heater floor duct. I removed the rear stabilizer assembly, the rear step assembly, and the underpinning was detached and rolled up to the axle.
It didn't take long to see the problem, ALL CREATED AT THE FACTORY! The metal 90 degree heater hose was rubbing the slide out bracket. A slight pry and indention into the sheet metal elbow gave a 1/2 inch of clearance.
The sponge feeling floor was almost unbelievable. The factory welded floor joists were welded under the I-beam lip that is used for the main two frame runners. This left a 1/8 to 3/16 gap between the actual floor and the floor joists all the way across the floor. NO SUPPORT! I had some hard vinyl sheets that were 3/16 thick. I cut strips and added them between floor joist and floor. Held there with tywraps.
I now have a solid floor in the living room/Kitchen area.
The bathroom and bedroom floor is acceptable without repairing it at this time.