Re: Mystery Substance
Hi, I have seen the white substance in some of my locomotives,
the white (creme looking) substance is put by the motor manufacturer
to keep the coil wires from shifting. They are usually put at the
three junctions of a three pole motor. When I saw that first I
thought it was the wires that got burnt to ash and hardened...... Do
not remove it the motor wire might get cut if you try to remove it.
--- In firstname.lastname@example.org, zscale@r... wrote:
> My railroad has acquired a pair of locomotives, one of which is
> years old, and the other is probably ten or twelve years old. The
> twelve-year-old looks like it's been in service. Judging from the
> pristine paint around the screw on top of the eight-year-old's
> boiler, I'm going to assume that if the eight-year-old has ever been
> run, it's never been oiled.
> To be safe, I'm going to assume these two locos have old, thickened
> oil, and I'll give them a thorough cleaning before oiling them.
> Thanks to this list for previous discussions on the subject.
> Something I haven't seen before: from the rear, the older loco's
> looks nice and shiny overall, but there are patches of white residue
> on the portions of the coil that form the junctures between the
> spindles (I doubt I got the terminology right). They look a bit like
> the white salts created by corrosion, but I wouldn't expect to find
> any corrosive agent in a loco, and the white stuff is uniformly
> limited to certain symmetrical portions of the bronze coil. What
> could have caused these white deposits? Heat or humidity, perhaps?
> Ionization? Gamma rays? Martians?
> -- Andy Hunting
> P.S. While digging around in the z_scale archives, I came across
> statement by Jeffrey MacHan, which made me smile -- esp. considering
> my present circumstances (my flat looks like a lumber-yard) :
> "Building a layout is so difficult precisely because we are
> struggling against a law of physics. In fact, the universe does not
> want us to build a layout."
> Hi, I have seen the white substance in some of my locomotives,manufacturer
> the white (creme looking) substance is put by the motor
> to keep the coil wires from shifting. They are usually put at theThanks. It's good to know that motor replacement won't be part of my
> three junctions of a three pole motor.
new-loco maintenance program! None of my other steamers, including
the other (probably younger) 2-8-2, have the white substance.
> When I saw that first IDo
> thought it was the wires that got burnt to ash and hardened......
> not remove it the motor wire might get cut if you try to remove it.Like you, I thought it was a very fine powder like ash, burnt dust,
> Good Luck.
metal oxide, or corrosion salts. I brushed at the white stuff with a
cotton swab to see if any would come loose, without result. So I left
it alone -- I'd rather not touch those fine coil wires with anything
sharper than my elbow. :-)