Summary of the January 19-20, 2008 Work Session
was so good that one young volunteer slept on the couch.
were thirteen attendees. The amount of work that can be
accomplished by a group of this size is amazing, as well as is the mess
that can be produced in the shop!
painting of the structurally complete bunker were the tasks
hand. During the day Saturday sanding, cleaning, and etching
the new steel were completed. Application of the epoxy primer
done late in the evening, after dinner, and after everyone but the
painting team had evacuated the premises. By Sunday morning
shop atmosphere had cleared, and a coat of protective paint was applied
on top of the primer. Everyone but the dead fly that was
stuck to it Sunday morning was happy.
It is hoped that
during the next
session a coat of paint can be applied to the inside of the
bunker. Then it is to go outside for long term storage, until
is time to mount it on the locomotive frame. Outside, it will
stored on blocks in the up-side-down position to keep water from
pooling in it, and to this end a fast shed roof will be built over it
to prevent rain from directly hitting it.
The space that the
bunker is now
occupying in the shop is needed in order to begin concentrated work on
the tender tank. The faster we can get this item outside, the
better it is.
One of the
volunteers took the
partly completed boring bar holder home in order to apply the finishing
touches to it, and to construct a new two inch diameter by 24 inch long
boring bar to accompany the holder for this very job at hand.
With this completed holder and bar it was not difficult to bore out
enough of the shaft to remove the key, and pump out the remaining shaft.
The only difficulty
on this job was a mechanical problem with the newly acquired
lathe: This lathe had obviously not been used for boring
recently, and cranking the cross slide of the carriage back far enough
for the boring bar to enter the hole drilled in the end of the pinion
shaft was almost impossible. For this job, and this job only,
cross slide was forced back far enough to get the job
After boring out the shaft, it was decided to take apart all moving
assemblies on the top of the carriage for cleaning, inspection, and
repair, if necessary. Quite a bit of time was consumed during
this take down/cleaning process, and luckily nothing was found to be
broken. Over a period of years, an accumulation of fine metal
particles and oil had cemented things together, about like glue, and
restricted the limits of motion of the cross feed, and the taper
attachment would not have worked at all, such was the degree of
encrustation. The only items needing replacement were two
ball-thrust bearings that were pitted due to corrosion. By
Saturday afternoon of the next work session these pieces should be back
in place, oiled, and adjusted.
At the next session
or front portion, of the carriage will be removed and given the same
TLC that the top portion of the carriage is now receiving.
Everything functions, but the "feel" while moving the carriage manually
is not silky smooth, but a bit rough, like a few bearings need either
cleaned or replaced. For the lathe to function well in the
long-term these small problems need to be addressed
Two conditions on
coupler pocket are being corrected: 1) The hole ( or rather a
series of five holes, all in alignment) for the long coupler retaining
pin are worn oval instead of round; 2) There is a hole in the flat back
wall of the pocket that needs to be patched. Neither flaw is
fatal to the part, but we wish to leave no wear or wreck damage
un-repaired. The former is from years of normal usage, the
is from the coupler having been driven through the back of the pocked
in the collision that wrecked the tender frame, and broke a lot of
The method of
repairing of the
pin holes is not entirely decided for sure, but most likely the holes
will be welded partly shut, and bored back to standard size.
The hole in the
pocket wall has
been patched by re-attaching the fragmented, puzzle-like chunk that was
popped loose almost 70 years ago! Miraculously, with the
being of cast steel instead of cast iron, a small sliver of
held this damaged metal from falling out and being
The pieces of the puzzle were welded from both faces, and then the
entire piece was welded back into the hole.
topics later (maybe)...