Restoration of 1969 Cooper 998 outer sill
and step section
back to restoration services
This shows the damage an over sill can cause. The correct sill of a mini forms a box section with the inner sill and floor. This section should be able to have air flow through the outer sill slots. An over sill creates a box with no vents so moisture, dirt etc. can not escape thus rotting out everything near it.
These two pictures show the amount of corroded metal we had to cut away to get back to good steel for welding.

It is not easy to see at first but the lower picture is looking up at the roof lining through the whole cut away by removing the sill and step section.


This is some of the rotten sill cut away!
Panels fitted and almost ready to paint. Note the original spot welds at end of sill. We use a one sided spot welder for neatness, originality and strength.
The top picture shows the corrosion to the front of the rear subframe mount.
 
 
 
 
 
 

The lower picture shows the mount repaired and sill fitted