Lionel 2046 Engine

Welcome to the wonderful world of open frame AC motors, the smell of ozone, and the delightful buzz of e-units ....making sure your 2046 is in proper tune, and the whistle tender are key....couple things to easily check, be sure the track, the rollers ( on both the engine & tender) are good and clean & lubricated....check spring tension on the arms,...you can put a tiny drop of oil on the roller pins, and the pivot pins of the collector....the arms should make good solid tension on the rails, loose or distorted arms make the rollers lose contact, thus the roller will jump around making sparks, and tiny little char marks wherever you go....so be sure to clean the track as well.....yes & no as to this problem making the tender blow inadvertently......dirty and or loose rollers, dirty wheels, can make a whistle “trip” on occasion....clean wheels, clean roller pickups, again, a small drop of oil is ok, and also a tiny drop of oil on the pivot points where the tender trucks meet the tender frame helps.....remember, the path has to go through the wheels, through the trucks, and through the frame....so that’s a few places contact can be lost and re-gained at any given moment....

Pat

@wizzer posted:

What's going on?  What's wrong here?

SOP - all normal with FasTrack metallurgy. Just clean the track as best you can w/o abrasives.

Thanks.

Pat, On further inspection I THINK the front base of the front 4 wheels is "scraping" on the track.  I THINK there is a washer missing from the spring that is attached to this base.  (Sorry if I am not using all the correct terms.)  The spring is working but it is not holding up the base of the front 4 wheels high enough (my opinion).

There is about 1/16 of an inch of black paint scraped off in the bottom front of this metal base which indicates to me it is being scraped.

The larger chrome screw that holds this front 4 wheel base to the engine is tight but I wonder if it is missing a washer or two as well. I know these 4 wheels have to be looose and have some "play" to them but the "up/down"  play may be too much.  I know that if I added 2 washers the "up/down" play would be less.

I will look for a Lionel 2046 diagram of parts to see if my assumptions are correct.

Pat, I found the diagram--no missing washers??? Though I wonder if I should go ahead and install one or two washers to the central, chrome, screw that holds the assembly to the frame of the engine to "tighten up" the slack?

I notice that the middle brace of my collector arms is bent in (a little) so as to "clear" touching the track.

Not sure if this is normal or not.  The engine was worked on (tuned up?) a few months ago when a new smoke unit was installed.  I wonder if the "mechanic" did not have the correct 2046 collector arms and "adjusted arms" from another model to make them fit/work?

I placed a No. 2 pencil across both rollers, pressed down, and I think the springs of both collector arms would "touch" the track.  Maybe that is normal but unlikely to happen if the track is smooth and properly installed.

I wonder IF the middle brace on the collector arms is supposed to be "bent in" or is supposed to be flat?

Be careful adding washers; they can create a problem if not required. The 4-wheel front truck does not use a washer. Another thing I'm wondering when you speak of that front truck not riding high enough - could it be that the upper lip of the truck is not tucked in under the frame? On the opposite side of the screw, the truck has two lips or small "shelves" and the top one must go above the screw so there's an "above" and "below" the plate that has the truck attached to it. One more possibility on the sparking is that it could come from the brushes not turning freely in the brushplate; or the brushes may be too worn and need replacement, but  if they don't turn freely within the copper base the brushes sit it, that can cause sparking on the rollers and can wear one or both brushes down unevenly. Just a thought... 

Virginian65 is correct....don’t add things you don’t need just yet.....at this point, some pics from underneath would be helpful to explain what you’re seeing.....did you try the simple things first, like Rob & myself replied earlier?......always start with simple stuff first.....

Pat

Yes, I cleaned all the track.  I cleaned the rollers and the wheels on the engine and the tender. The "Lionel" name plate between the roller arm springs was a little loose --being held in place by only 3 of the 4 tabs ---so I removed it.

Harmony, I have yet to learn how to add pictures to this site.  I just recently found the on off button on an I pad...

@wizzer posted:

Yes, I cleaned all the track.  I cleaned the rollers and the wheels on the engine and the tender. The "Lionel" name plate between the roller arm springs was a little loose --being held in place by only 3 of the 4 tabs ---so I removed it.

Any improvements?......as Rob had mentioned, these things will spark some on fastrack, .....did you put a drop of oil on the rollers and the pivot pins of the arms?......this should make some improvements......let us know if you’re at least marching in the right directions....

Pat

Yes, I used a drop of oil in the spots recommended.  But I got interrupted and might not be able to give the engine and tender a REAL test for any length of time today.  It seemed when I ran it a long time the collector arms, rollers and even the "Lionel" plate got very hot to the tounch --hot enough to burn your finger tips.  That's when the horn on the tender would go off by itself most --after everything got hot.  I was afraid of buring something out the other day so I stopped running it.  I need to run it longer today to really check it out.

I will get back to you after I have time to do that.

@wizzer posted:

Harmony, I have yet to learn how to add pictures to this site.  I just recently found the on off button on an I pad...

In the "Add Reply" box at the bottom of the page, There is an "Add Attachments" in the bottom right corner. Click on that, Find the file in which you stored the picture, double click on the picture, Once it's done processing, click "Finish". It will be in your post. Also, start a new paragraph when you insert your picture, otherwise your sentences get all cut up.

Good Luck.

I am still working on how to send you pictures from my I pad and/or from my email address.

In the mean time I removed the front 4 wheels and the back 4 wheels from the engine and it still sparks so now I know it has to be coming from the rollers, roller arms.

The sparks are not coming from the outer rails.   So I do not think the engine wheels (that have been cleaned) are the problem causing sparks.

@wizzer posted:

I am still working on how to send you pictures from my I pad and/or from my email address.

In the mean time I removed the front 4 wheels and the back 4 wheels from the engine and it still sparks so now I know it has to be coming from the rollers, roller arms.

The sparks are not coming from the outer rails.   So I do not think the engine wheels (that have been cleaned) are the problem causing sparks.

We won’t leave you hanging buddy, but we’ll really need to see some pics from underneath your 2046 to get a better idea of what’s going on....Chris ( jayhawk500) outlined a how to upload pics ( couple replies up) so thanks Chris!..so hopefully we can get some pics...ADCXRob, or ...BMORAN4, I hope sees this, or Chuck Sator, they’re really some of the resident postwar gurus, and are always spot on with their recommendations...But again, we’ll see if we can muttle through this...

Pat

Finally.......

Pictures of the underside of my Lionel 2046

Cool!...great job getting the pics up!......now, to me, those rollers look like they’ve seen better days, .....you’ve got some pretty good grooves worn down on them,....my suggestion would be to replace them....BUT ...let Chuck, or Rob, or BMORAN4, or one of the Postwar experts have a looksie first before you go and tear things apart first.......get a couple of opinions, then make a move....

Pat

Just a reminder.  I removed the front and back 4 wheels and I still got sparks.  The track was clean.  The wheels on the engine had been cleaned.  two drops of oil applied to the two springs, etc.

Those rollers are pretty badly worn... for sure.

I just fixed my 2046... looks like the same issue ...but, I could be wrong.  On mine the roller *plate*... the metal piece that holds the rollers was *not* secured tightly to the insulator underneath it.  Whether this is the correct fix or not I don't know... but, once I aligned my roller plate with the insulator... I pulled the roller plate out about an inch, wiped the roller plate and insulator with Q-tips and some alcohol (I did not go nuts with this... just got the grease off) and used contact cement to glue it back together.  Now it sits on there tight and the rollers do not wiggle around or get stuck when raised up towards the insulator.  She is a little BEAST!

I think I'm good for another 67 years (the 2046 was purchased Christmas 1953).

Yes I agree that the rollers are worn and should be replaced. Also check the spring tension of the roller brackets, if they are not making strong and steady contact you will get sparking.