You can use a cut off wheel or reciprocating saw to cut the floorpan.
Can you place carpet over rusted floorpan.
The first thing realize that when you decide to repair your rusty floor you need to understand that those few rust holes that you see now are only going to get bigger as you clean things up.
Sometimes you can get away with minimal patch work but far too often the pans are completely wasted.
On the face of it installing new carpet over the old carpet does have some advantages.
A good tip for you place a thin layer of plastic or cling film under the lid to stop it sealing itself shut if you have any left over.
Floor pan rust treatment process in pictures.
Wear a dust mask and eye protection.
The floor in the 73 duster we used for.
Remove any rust from the bottom of the floor pan using a power sander and 40 grit sandpaper.
If necessary to break the adhesion bond between the carpet and floor pan.
Weld spatter travels far and will bury itself into the surface of any glass it hits you can get it off with an acrylic scraper but the glass will be permanently pitted.
Then you want to put in a patch.
I would love to see pics of your progress and all the best with your project too.
Also if the rust started from the inside leaky t tops window seals etc fix that or it will just.
It saves on the cost and labor of pulling up and disposing of the existing carpet keeping carpet waste materials out of the landfill.
A better method is to weld in a patch remember to paint that area on the outside under of the car so that it doesn t rust over again.
And if the existing carpet was glued down not tacked it can be a huge time saver to lay the new carpet over the old.
On any repairs that require welding cover all the glass on the car and on any other cars in the workshop where you re working.
This patches the holes and adds a strong layer over the floor pan which can actually improve the strength of the entire floor pan.
Just removing carpet along can take a quarter sized holes and turn it in to a dollar sized cavity.
Carpet in place.
Riveting in a patch sealed with rtv will work if you re feeling cheap.
We used a hypertherm powermax45 xp plasma system.
We set out to show the different ways you can fix a floor using this 1960 pontiac catalina where severe rust and rot had damaged its floorpans and trunk floor.
Scrap off the old seam sealer from around the remaining edges of the floor.