Stuck pedals - any further ideas?

[rrarider]

Looking at the photos, I'm thinking that that's the left hand pedal. That's the one with the left hand thread. Not like bottom brackets, RHS has LH thread.

 

[swansonj]

Blimey, are you turning it the right way?

Trust me, I was so paranoid about that that I actually went round threading left and right pedals into various old cranks just to reassure myself

 

[Venod]

The next step is wedge the pipe somewhere and pull on the longer board.

 

[Levo-Lon]

Now admitting defeat.

I dismantled the pedal. The corners on the hex on the pedal angle were beginning to get rounded, so I used an angle grinder to grind two of the opposite flats down quite a way to make a really decent pair of parallel flats:
View attachment 417034
(Sorry, that’s not a very clear photo, but trust me...)

I then bolted my bench vice to an eight foot length of 2x4, gripped the new flats in the vice, and stuck a piece of scaffolding pole over the crank:

View attachment 417035

And pulled. To be precise, got my wife to stand on the 2x4 while I pushed with my feet against the 2x4 and pulled against the scaff pole.

With all my strength.

And nothing happened.

Which is why I am admitting defeat, at least till I can try again with a decent source of heat.

But thanks everyone for the suggestions

Holy tight axles Bat man..that is tight

 

[rrarider]

If, in the photo of the bike pushed up against a bench, you are pulling up on the scaff pole, then you are tightening the pedal in the crank.

 

[BianchiVirgin]

Time for new cranks. No 20 year old crank set it worth that hassle.