Stuck seat post help

[SteveParry]

I bought an older bike cheap. Then discovered the aluminium seat post stuck in the steel seat tube. I've read all about using caustic soda etc but don't want to try that. I emailed the 'Seatpost Man' in Chorley Lancs. He quotes £80 to remove and sacrifice the seat post. That would also mean a 60 mile round trip - I'm on the Wirral. Does anyone know a mechanic nearby who might be able to help?

 

[Animo]

Worked for me:

Turn bike upside down. Remove a bottle cage bolt from the seat tube. Spray WD40 penetrating stuff down there. Repeat over a few days. Keep giving the saddle a whack. Eventually came loose.

 

[sevenfourate]

For the average guy with limited tools: Lubrication / plus-gas etc from all directions - and some heat; even with a hairdryer - might well help,

Then bike / frame upside down with seat post in a vice TIGHT (Can insert another metal tube up the inside if at all possible; so vice can be done up REALLY tight without crushing the original / stuck post (And causing more issues) - then use the frame as leverage to twist and move the stuck post.