Patching holes in floor pan [Archive] - Chevelle Tech

: Patching holes in floor pan


Brad Howard
Jul 10th, 04, 3:21 PM
Hey guys:
I neglected to get your input for patching drill holes in my floor pan in my earlier post. I have several drill holes in the floor pan from previous bucket seat installations. I am in the process of installing the correct seats and seat tracks and would like to patch the old holes; the largest hole is 3/8” diameter. I don’t have a welder and thought about using some aluminum tape but there should be a better way. Any suggestion?

Thanks
Brad Howard

70 Elco Joe
Jul 10th, 04, 4:07 PM
Well if you cant find anyone to weld it for you, I would suggest Por15's Epoxy putty. That stuff is great, and very easy to work with. Dries hard as a rock but still sands well if you need to take down a high spot. Welding would still be my first choice, maybe some of the Pro's here have better solutions.

troposcuba
Jul 10th, 04, 4:52 PM
what about just putting a nut and bolt through it with something to seal it for sure?

feedphillipnow
Jul 10th, 04, 7:09 PM
How far is cypress? I weld :D

troposcuba
Jul 10th, 04, 11:26 PM
cypress is orange county. southern cali. i grew up there. sorry to but in. but just wanted to give a shout out to cypress!! graemlins/beers.gif

Randy Mosier
Jul 11th, 04, 1:10 AM
I really don't think welding is needed here. If the rest of the floor is in good shape and the hole isn't visible from underneath the car, I'd find some sort of plastic plug that fits the hole and use brushable seam sealer to glue it in place. New rear seat pans come with a one inch diameter hole in both sides and that's how you close them up. In fact, factory pans had similar sized holes in the same location and that's how the factory closed them. RTV should work also. Look closely at those pans and you'll see four oval shaped metal plugs that are held in with sealer. You just want to keep water from splashing in and sitting on top of the pan under your carpet. Make sure you get some paint in and around the hole before you close it up so it doesn't start rusting in that area.

You may have to go browsing around at the local hardware store to find something that will fit the hole.

Now, if the holes are visible from underneath the car and not concealed by the braces, then I'd go ahead and have them welded shut.

Brad Howard
Jul 11th, 04, 12:56 PM
Hey guys:
Thanks for all the feed back. I used some of your ideas and came up with a solution that worked great. If any of you have this problem, you might consider this:

1) Thoroughly clean the top and bottom of the floor pan where you intend to either strengthen the pan or make a repair i.e. plug a hole.

2) Purchase some aluminum tape at the hardware store and apply the tape to the bottom of the floor pan.

3) Purchase some Por-15 Epoxy Putty to patch the whole or make repair. I left the aluminum tape on the bottom side of the floor pan and painted over it, this is your choice.

4) Sand and repaint the repaired areas.

The repaired area is super strong.

Thanks all

Brad Howard