Seized suspension pin

[Wired1]

I have an '82 xt250 that needs a lot of love. The swingarm top pin that connects to the shock absorber is seized in the swingarm. The shock still moves on the pin OK so it is working, but I want to do the swingarm bearings and need to get it apart. It looks like someone has put a spot weld on the pin head at some time but I have ground that off so I'm assuming it's rusted in plase. What's the best way to free it without buggering the swingarm? heat? crc?
p.s. if anyone has a 81-83 xt250 or tt250 frame I would like to buy it off them!

[Wired1]

Will heat damage the heat-treatment of the pin?

[F5 Dave]

No but be sensible at what else is around the area. Sometimes things have to be sacrificed. Welding the nut on?!?? Hmm, why one wonders. Striped it & too butcherous to buy a new one? If can soak area in CRC for several days pooling/ reapplying.

[Wired1]

Yes it might be easier to get another swingarm and rebuild it all from scratch.

[Wired1]

Does the bolt have to be a special part or can I use any old bolt (top of swingarm to shock)?

[F5 Dave]

Will have to be straight shafted & same tensile as previously, they are under quite a bit of force. So from a bike-shop or wrecker with the original length.

[bumsex]

use an oxy acetylene plant and heat it up good an proper. What I normally do is heat the area then apply good penetrating oil (i.e nutcracker or similar) and move the bolt around as much as I can. Then allow to cool and repeat the cycle.

The bolts should be okay but if the bearings are seized you should carefully check the bolt for wear.

and straightness

[Wired1]

This project has gone beyond just this category so I have started a new thread for the restoation:
http://www.kiwibiker.co.nz/forums/showthread.php?p=1311646