Swingarm bolt seized in engine cases

[80-85 husky]

easy to wail on the end of the bolt in the hope it will shift. lots of help here!!

[dt tas]

Theres even a better rost off called rost off ice comes out of the can at -40 degrees

[kdx Geoff]

Theres even a better rost off called rost off ice comes out of the can at -40 degrees

As its a hollow bolt it might help at press time

[80-85 husky]

heat it up so the whole shebang expands a bit then pour cold water into the bolt hollow to retract it suddenly and break the corrosion seal!

[kdx Geoff]

 
This is the blurb with Rost off ice.


High-grade rust loosener with cracking effect created by extreme cooling, and excellent creeping properties.
 
• Cracking effect.
  The advantage for you:
• When the surface of the material, e.g. that of a threaded bolt, is cooled down to -40oC, microscopic cracks appear in the layer of corrosion of the joints, and these cracks break up the rust and therefore ensure better penetration by the active substance.
• Phenomenal capillary action.
  The advantage for you:
• Superior creeping properties combined with the cracking effect ensure excellent penetration of rust.
• Ideal rust removing capability.
  The advantages for you:
• Penetrates rapidly underneath rust and loosens bolts that have seized up.
• Badly rusted-up screw connections can be easily loosened without damaging the bolts.
• Corrosion protection additives.
  The advantage for you:
• Long-term protection against subsequent corrosion.
• Free from resins and acids.
   
• Silicone-free.
   
• No damage to rubber and seals.

All in a can, sound like a easy way to do this if it works.



 

[KTM47]

If you have managed to get the bolt to turn a bit.  Just keep spraying whatever you want to use into it and keep trying to get the bolt to turn more. 

Drawing the bolt out (Slide Hammer) will be better than pressing or just bashing it.

You said it is stuck in the cases.  Is there steel sleeves in the cases or just the alloy.  Heating things may not work, because it will just expand the alloy and not the sleeves.

Either way patients will be the key to getting it out.

[kdx Geoff]

Guys when are you going to give up on your magic potions.
Use the product that makes life easy.

Get this, great stuff 

Disassembling a wheel with rusty spokes & nipples and getting excellent results while the swingarm bolt soaks.

[kdx Geoff]

Either way patients will be the key to getting it out.

 

[Ted]

If you have managed to get the bolt to turn a bit.  Just keep spraying whatever you want to use into it and keep trying to get the bolt to turn more. 

Drawing the bolt out (Slide Hammer) will be better than pressing or just bashing it.

You said it is stuck in the cases.  Is there steel sleeves in the cases or just the alloy.  Heating things may not work, because it will just expand the alloy and not the sleeves.

Either way patients will be the key to getting it out.

Hey Kev, Are you suggesting he takes the seized bolt down to the local hospital, ties it to a couple of top floor PATIENTS and chucks them out the window.

It's worth a try I suppose.

[KTM47]

Just another point.  You say the bolt is turning.  Is it the bolt turning in the steel sleeves (assuming there are steel sleeves in the cases) or the sleeves turning in the cases.  When you try it next see if the sleeves are turning.

I learnt a long time ago if things aren't coming easily, don't use extra force.  Take your time.  I've seen someone trying to split crank cases banging a screw driver between them.  I quickly said STOP!!!!!  there is something wrong.  There were several screws not undone.

[Tomas]

You can also try your luck with 8lb sledge hammer 
http://www.advrider.com/forums/showthread.php?t=776648

[Ktm181]

ither way patients will be the key to getting it out.

I always make it a habit to go quietly with a BIG STICK young Geoff.....go very gently with that press mate, can easily do some damage, its hard to "feel" when using something big on something small, SOAK IT FIRST and then go gently.

W.

[Slakewell]

You can use a bearing puller as a portable press. See if you can get the puller attached around the swingarm pivot useing the frame. Then wined down the threaded part on the bolt and use it as a press. When the puller gets hard to turn try a swift sharp blow with a nornal hammer on the end.

[kdx Geoff]

The stript down bike is sitting on its side with regular spraying of 'Rost off'. lm flipping it over every couple of days and getting a can of 'Rost off ice' to use on the hollow bolt.

l might go with this for a couple of weeks, l don't want to have to cut it out like this other bloke had to   

You can also try your luck with 8lb sledge hammer 
http://www.advrider.com/forums/showthread.php?t=776648

[kdx Geoff]

There you go 

l had a date with that bolt this morning and brought my angle grinder.

There was no way ever ever was that bolt going to come out in one peice. It was rusted to everything it touched, both the bearing sleeves and the spacer in the cases.

l had enough clearance between the swingarm and the spacer and only suffered some minor damage that should be pretty straight forward to repair. l have to cut off the bolt head to get that part of the bolt out and get the swingarm out of the frame.





lm very glad l didn't put this lot in a press, it was never going to press out and l could have done significant damage.

Thanks for everyone's input