I could not get the Freeze Off to work on my frozen stem. I bought a new can of the stuff so I would have plenty to use. I flipped the bike upside down and sprayed some into the steerer tube. I then flipped it over and sprayed the stem very liberally above the seam with the steerer tube. I also took the stem bolt out and sprayed down into the stem. The stem was clearly very cold, as frost formed on it and it was very cold to the touch. I held the fork crown and used my mallet to deliver blows up under the stem neck and down on the stem as well to see if I could get any movement. The thing did not budge. I used the entire can trying to get the stem free. I am at a complete loss.
I read another forum post about someone who had luck when letting PB Blaster soak everything for 2 weeks. Perhaps I will try that. I'd rather not have to cut off my stem, so I am open to anything.
Question - I can tighten my stem bolt. Can I just ride the bike as is?
Thanks!