mounting problems

When I was carrying out the final repairs to the rear of the driver's side inner sill (prior to putting the outer one on) I discovered some rust inside the car at the rear seat belt lower mounting bolt. It didn't show from outside, in the wheelarch area, but after some poking around it was clear repairs were needed. The problem seems to have arisen as the heavy plate welded inside the wheelarch well, which supports the seatbelt mont bolt, has a gap between it and the wheelarch panel allowing corrosion to start. The rust then bubbles out to the inside of the car rather than fight its way back through the underseal. It was tricky and time consuming to cut out all the rot as once again there are several panel joins here and lots of hidden spot welds and some seam welds too. Luckily I have a sand blaster which is ideal for cleaning everything up so you can see what needs done (NB - in these pictures the parts removed were clamped back into their locations for the photos).





on RHS of the bolt above wiring loom you can see the the corrosion discovered. irony is that no rear seat belts were fitted and probably never will be but corrosion caused by this provision







red primer part is heavy plate which seat belt bolt screws into. gap between it and wheelarch skin was full of rust and metal was paper thin. inner sill top, seat pan rear and wheelarch bottom all need rot cutting out







rotten part of inner sill has been removed here







followed by bottom of wheelarch









and finally rear edge of seat pan