Illaveago
Guru
- Location
- Chippenham,Wiltshire.
I tried penetrating oil, caustic soda, lemon juice . You will need to seal the bolt head end , I used a bit of old inner tube to make a washer. Bolt it back together and leave it to soak for a while upside down . When you see the level of liquid drop but not leak past the bolt head is a pretty good sign as it means that it is getting past the corrosion seal . Mine wouldn't even shift after a couple of days of lemon soaking . The level had dropped but it still wouldn't budge when clouted . I finally put a butane torch up inside the fork and heated it up . When I could feel the heat when holding the steerer tube of the frame I poured cold water inside hoping the shock would separate things . It worked ! After 2 hits the expander moved. I then put a bar through the stem and a large piece of wood between the forks and twisted.The expander is loose but stem very stuck. I have tried penetrating oil and rust remover so far. Will try lemon/lime juice next and see how that goes. Also struggling to get good leverage on the stem without bending the forks.
Good luck !