Hi! Christine Timm.
I suggest, without liability!, get a 1/2" thick 1.5" diameter copper washer
made with a grub screw inserted in the outside circumference through to the
hole in the centre, carefully grind a small flat on the offending pin,
which is presumably in the seat back bush ? leaving a lip behind which the
grub screw can be tightened . Heat the copper very hot , clear of the
'plane , put it on the 1/2" stub with a pair of mole grips , tighten the
grub screw, not too much or the threads will strip, then use the mole grip
to work the pin out ,
all presuming you have already ground away the bush flange to allow the
bush to move out after the redux has released.
This may be suitable even if the bush/pin is in the spar.
Pity about the dinner ! Mine often finishes in the dog! In spite of my
hearing being good enough to hear FIRST TIME ?!
Regards
Bob Harrison. 337 G-PTAG
-----Original Message-----
From: Christine Timm [SMTP:cptimm@intergate.bc.ca]
Sent: 02 June 1999 05:24
Subject: Changing wing pins
Help! I have a very unhappy husband. He was trying to replace the wing
pins
to use the new ones, intended for the glider wing configuration, when
disaster struck.
He was advised to heat the pin, turn and that it should then release and
come out. It did turn once but...
A combination of, we think, insufficient heat from a small torch, and
me interrupting at just the wrong moment to say dinner was ready!....
the torch blew out and the net result was that the pin cooled and broke
after it had initially released.
I am in deep ..... and would like to see if I could find some solution.
Tonight he went to the RAA meeting with hope that a solution to release the
locktite (sp?) would be found. We plan to try again by protecting the
wing
---From heat with a shield of the firewall material and using a stronger heat
source. Reassurance would help. Does anyone out there have any other
suggestions? There is a stub about 1/2" remaining.
On a lighter note, I've really enjoyed reading about everyone's progress
and
feel the world is so much smaller when we hear trips to Holland and other
Europa activities.
Looking forward to being of assistance one day when we can help solve
someone else's problems!
Chris and Peter Timm
Builder #110 (UK) - Canada
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