|  Surface rust doesn't 
                  look good but it doesn't seem too serious but the cill structure 
                  on MGBs and derivatives like the MGBGTV8 is prone to corrosion 
                  which can become a structural problem that has to be dealt with.
 |  But when it's opened 
                  up a far more serious situation is revealed and clearly a cill 
                  replacement is necessary as part of a restoration.
 
 |