Mar 24, 2014 update to the Austin Mini Cooper S project car

Flooring It

Yup, we have some work to do.
On the left is the front of our driver's side floor pan.
Leave a ruler in case more measuing is needed. Make notes on the old panel to show how much to cut. A rotary cut-off wheel or a small reciprocating saw works well. Take small pieces, measure, then cut more as needed.

We moved rearward to tackle the floors after getting our front end largely under control on our Mini Cooper S project.

Mini Mania sells full floor pans, so we ordered floor pan repair sections from them. We only had rust in the front half of ours, though, so we replaced the front driver’s floor pan and just used a small patch on the passenger’s side.

We decided to seam the repair under the large brace that separates the front seat from and back seats. Welding in this area is impossible to detect from the top of the car, especially once we grind and seam seal the bottom.

First, decide how much needs to be repaired. Next, carefully cut out the rusty metal. This is generally done with a reciprocal saw, rotary cut-off wheel or a plasma cutter.

From there, cut the patch panel to the correct size, making sure all the metal is clean. Then start seam welding in small bursts, allowing the metal to cool in between welding sessions.

It was an itsy bitsy, teeny-weeny rally-winning project Mini. Subscribe to Classic Motorsports and get them in your mailbox.

Join Free Join our community to easily find more project updates.
View comments on the CMS forums
Sponsored by


Mini Mania

Advanced Performance Technology

Performance Racing Oils/Millers Oils

Our Preferred Partners