mate not being funny but are you sure your up for the task as if you cant do the simple task of removing the barrel i can se it going tits up on rebuilding the lock as they are really fiddley to do

i can see the next thread help re build my ignition barrel

put key in the lock turn to position 1 and under the barrel in the houseing that holds the barrel is a 3/4mm hole with a pin in it press the pin in an pull the key and the barrel will come out

all the best paul