[TowerTalk] liberating aluminum

[Dan Bookwalter]

FWIW

We had a situation in the mid 80's when K8WW came back
from VP9 he left the 10m antenna pieces all telescoped
together as they were shipped... when we tried to take
it all apart a year later the salt and whatever else
had corroded and basically glued the whole mess
together .... we soaked it all in penetrating oil for
hours before it finally started coming apart.

Dan
--- Jim Jarvis <jimjarvis at comcast.net> wrote:

> 
> Multiple applications of wd40 help.
> 
> Ultimately, heating the exterior tube quickly with
> a propane torch may break things free.  Particularly
> if oxidized between the tubes.
> 
> Using a wrench or vise grips to hold tubing can gall
> it.
> Conformal wood blocks are more gentle, and still
> allow you
> to get a good grip.  .. work to make, though....
> 
> Applications of all three techniques.... juice, heat
> and
> torsion, in concert, may work. 
> 
> Note, if the tubes are galled where they went
> together...or
> if you put in rivets or sheet metal screws...you're
> pretty
> much at risk for not being able to get it apart...or
> back
> together again.  
> 
> For a really old antenna, you might consider selling
> it
> locally, and let the buyer absorb the problem. 
> Depends
> on what your time is worth.
> 
> Good luck.  
> 
> n2ea
> jimjarvis at ieee.org 
> 
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