Squealing motor on a Lionel 6-18000 0-6-0 Switcher

Hard to tell what you have.  Some of the early TAS, (Train America Studio), electronics had an electronic squeal, that to some, was an issue.

Gear box worm gear needs to be opened.  Often the grease has hardened and is moved away from the worm and it's meshing gear.   

Some ideas,  Best wishes with your project, 

Mike CT. 

I would check the side rods, smoke unit lever, and the bearings on each end of the armature shaft.  Finally check the axles for the wheels.  Maybe the oil just has not penetrated the spot that needs it yet.  Did you oil the tender trucks?  I have this loc and its a nice engine for its time.  Smooth runner despite it being pulmor powered.

Had the same issue with the same engine I got secondhand.  I went through and oiled every spot I could find, even the oil wick in the motor, still squealed.  Finally narrowed it down and a drop of oil on the motor armature did the trick.  The whole time it was visible in the cab, I didn't need to take it apart.  I also assumed the wick oiled that part, but I guess the oil didn't make it's way up to where the armature sits in the motor cover.

Found this photo online and added the arrow where to put the oil.  The spot above the armature if I recall is the wick.

It’s definitely the motor bearings. Sometimes a tiny drop of oil won’t do. If you could pull out the motor to get to the bottom bearing that would ensure proper oil gets to the bearing. 

AXP889 posted:

Found this photo online and added the arrow where to put the oil.  The spot above the armature if I recall is the wick.

Missed that one.  Thanks !

romiller49 posted:

It’s definitely the motor bearings. Sometimes a tiny drop of oil won’t do. If you could pull out the motor to get to the bottom bearing that would ensure proper oil gets to the bearing. 

If the previous action doesn't work, I will have to take it apart and do the deed.

If it dies, sell it to me for cheap.  I am going to two-rail one of those some day, to match my converted 701.

Dan Padova posted:

romiller49 posted:

It’s definitely the motor bearings. Sometimes a tiny drop of oil won’t do. If you could pull out the motor to get to the bottom bearing that would ensure proper oil gets to the bearing. 

If the previous action doesn't work, I will have to take it apart and do the deed.

It seems to have done the trick !  Thank you.

Strictly as an aside, these are very good locomotives.  The only thing I've ever had to do to mine (apart from the usual lubing and cleaning, of course) is to replace the headlight bulbs with LEDs.