whatcha using there for a chain tool? Looks like you have the right idea, as far as I can see, but you might need to get a chain tool that gives you real leverage. You must push the pin far enough out so that you can disengage the inner link, but unless it is a Shimano hyperglide or newer SRAM chain (something tells me it is not), you don't want to push the pin all the way out. Unless you are throwing it away, and I hope you are, then by all means...push the pin out as far as you need to. It doesn't matter.
That seatpost may make you throw the bike in the dumpster. You can soak it in WD-40 for a week or put some Liquid Wrench in the interface between frame and seatpost, but judging by the amount of rust I can see it may be forever jammed. Aluminum not greased inside a steel frame equals galvanic corrosion. I have heard of some crazy mechanics hell bent on saving the frame cut off the top of the post, make longitudinal cuts (with what, I don't recall) all around the inside of the post where it is fused with the frame and just break it into pieces. Not easy and not pretty. You could also put the top part of the post in a vise and try to get it out by using the frame as leverage, if you have a vise and are ready to say goodbye to the post.
About the stem: You will need to loosen that stem bolt, then place an old book or something you don't care about on top of the bolt and whap on it with a hammer. The stem is held in place with a wedge inside of the fork steerer, and whapping it will pop the wedge free and the stem will come out. But the bolt must be loosened first. If it won't budge and you are using the right size allen wrench (it's been a while, but if memory serves me it is 6mm), then you can try the wd40/Liquid Wrench approach there too, but at this point it may be time to cut your losses.
again, I think rust is your enemy on this bike and may make stripping and rebuilding it quite the nightmare. good luck to you.



. My local bike wrench was going to stop by on the way home and show me how but he stood me up
"
Reply With Quote
But you're right, there's no leverage with it. And yes, the intention is to throw the chain out.
--