Great reply pvanv. I can't get dry ice here in Scotland but I can get a Co2 fire extiguisher. mmm now let me think about that one.
ok
1 strip the block of all heat sensitive components.
2 mark the liner and the block (so that you can get the new liner in the correct position).
3 heat the block in an oven to 400 deg (ballpark figure) for two hours (also ballpark)
4 press out the old liner with a previously prepared press. If it will not move get a machine shop to bore it out.(you will have to transfer your lineup marks from old to new liner while it is still in the block)
5 if it came out of the block give yourself a pat on the back well done now transfer the linup marks to the new liner.
6 back in the oven with the block as above
7 put liner in coolbox with dry ice if you can get it, Or cover top with insulation with a hole in it to accept the biggest Co2 fire extinguisher you can beg steal or borrow, now the fun part let the whole extinguisher go in the cool box (dont touch the hose you will give yourself a cold burn and also don't do this in an enclosed space or you will keel over and die)
8 take block out of the oven take liner out of the coolbox, drop liner into block, line up marks, have a beer (if it does not drop in have your press ready just in case).
9 next day make shure the top of liner is level with top of block (machine shop if its not).
10 thank guru and pvanv
11 get on the water
If any part of this needs edited feel free to do so, I am not a mechanic or a writer so go for it____