Today I bought this Panasonic
it’s quite unique
You don’t see many around.
But it needs a good restoration.
But first I need you guys to help me. The seat post is stuck realy stuck, I’ve already tried heating and wd40 but nothing worked. Do you have other ideas?
by Litipiro
5 Comments
Info on Panasonic here
http://www.yellowjersey.org/pana.html
Remove the binder bolt, flip bike upside down and spray penetrating oil (PB blaster or Liquid Wrench) in the seat tube water bottle bolts. Leave it for 24 hours.
Strategies from [Sheldon](https://www.sheldonbrown.com/stuck-seatposts.html) and [RJ The Bike Guy](https://m.youtube.com/playlist?list=PLxO5aF0sensiVdiClC_JH6OboqFl5Dvay)
I would avoid Sheldon’s suggestion here “The next thing to try is prying the ears of seat lug apart slightly with a screwdriver” since you have an integrated seat post clamp in the lug, there is nothing to pry, but you could also spray in there
They were great bikes. My first real racing bike was a DX-5000 with Tange Prestige tubing. I would kill to get my hands on one of those frame sets now.
wow that is gorgeous! please take care of it
Great looking bike. Some tips on seatpost extraction: Heat and penetrating oils don’t work on an aluminum/steel interface, the aluminum expands at a greater rate than steel so heat will just stick it in more, and the aluminum oxide created from aluminum/steel corrosion almost welds them together – penetrating oil can’t break it down or bypass it. Most people end up either chemically melting or cutting the seatpost out. I’ve only gone for the cutting method although I know people that have melted out seatposts with varying degrees of success. To cut it out you would need to chop off the top of the seatpost, and use a hacksaw blade to cut vertically from the inside of the seatpost to pull it out in wedges. Although this may be difficult with an aero post which tend to be solid in the “aero” portion. Good luck!
Using a slide hammer is the most plausible seatpost extraction method I’ve seen so far. You might be able to rent/borrow one from an auto parts store. Check out this dude’s video:
https://www.youtube.com/watch?v=S3ek2GeZzE0