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Hi, this is my first post!  My young son has progressed from wooden trains to a couple of o gauge starter sets from Lionel and loves them.  We recently purchased a small collection of post-war Lionel items, including a 2026 (the 2-6-4 variety).   I've read most of what I can get my hands on about this engine, and it was not running.  I had a couple of questions.

I took the shell off and generally cleaned the e-unit, including the commutator and brushes, checked the wiring, and reassembled it.  The e-unit lever is extremely loose, and I did not mess with it.  This clearly causes issues because it will not maintain contact, although the engine is running (at least while the lever makes contact).  I've read here and elsewhere about solutions, but my first question is more general:  how is this switch intended to operate the train?  While making contact, the engine runs one direction, and while not making contact, the engine is in neutral? Then while making contact again, it reverses from the previous direction?

My second question is the smoke unit.  It was done.  The gasket was toast, and saturated with smoke pellet residue, and the smoke pellet reservoir lid was caked, and the wires inside the reservoir looked burnt.  My second question:  should I disconnect the smoke unit wire until I can get a replacement?  Since there isn't a switch to turn the smoke unit off, will it hurt anything running it as-is?

Last edited by Justin76
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Mechanical E-Units from the postwar era modify circuit paths of the field and armature windings to switch direction (forward/reverse) via rotation of the drum.

The lever on the E-unit engages and disengages the direction changing capability. When enabled, the locomotive will cycle through F-N-R-N as power is cycled or the direction button on the transformer is pressed.

When the E-Unit lever is disengaged, the locomotive will remain in the current state and not change through F-N-R-N.

As for your second question, disconnecting the smoke unit seems smart to me - it is one wire.

The auto reverse has the lever so the operator can turn it off and run it in one direction only. The lever should be snug. If nothing is broken such as the fibre contact board, you can try to crimp the eyelet holding the lever on by using a very thin needle nose pliers and gently wiggling them into place enough to crimp the eyelet. The only other solution is to totally remove the e-unit, completely disassemble it, then separate the frame so you can remove the coil and use an eyelet crimping tool. If you break the fibre board or the spring washer or eyelet are shot, you ban buy a rebuild kit.

There is no need to disconnect the smoker. If its burnt out, its not using any power any way. If it is, then after some time it will start producing smoke. In any case, it should be taken apart and cleaned. You can get the original ceramic style hot plate and the gaskets from Jeff Kane. Or, if you wanted to use liquid smoke fluid, you can purchase a complete conversion rebuild kit.

Tin

You can do a temporary cure for the E unit lever contacts, by moving the lever out of the way, and clean the contact on the board, where the lever makes the contact. Take some solder, and put a small dab of solder on the contact, so that it is raised up enough to make a better connection when the lever is in position, to control the cycling of the drum.  This is a quick and simple cure, for a loose lever, not making a good connection.  Other than that, it would be better to get a replacement E unit, to fix your problem.

Try tightening the small rivet that holds the lever to the board that the contacts are mounted too. Be gentle though as its probably very brittle.

I have a 2026 and upgraded the smoke unit to  new liquid smoker. It works great and only took a few minutes to change. The original still worked but I didn't want to deal with the pellets. I bought the kit on DaBay.

Its a great old engine. Your son (and you ) should get many years of enjoyment out of it.

2017-07-09 08.09.16

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Thank you so much for the replies.  I think I understand this better.

So, without the lever engaged, the train should run in its current direction.  This indicates I have another issue as the train will sometimes run a complete circuit around the track, and other times it stops-starts-stops in a jerky fashion.  I suppose, since the e-unit lever is loose, it could be swinging around and bumping the contact.  I may try taping it out of the way to see if it will just run in one direction (I'd rather order all the parts I need in one go!).

 

Thanks again for the very helpful replies.

harmonyards posted:

The reason why it's jumping in and out of sequence is because the loose lever is constantly making and breaking contact, everytime it makes contact, it's gonna cycle the e unit and move to the next sequence 

That makes sense now.  The weight of the short arm will always make it jiggle in that direction and bump the contact.

 

Thanks for the replies, once again.  This one will be good practice as we also have a 2025 waiting for Christmas

My 2026 has been running great since Santa brought it for me in 1951.  I don't have much to add to what's already been said, except that you needn't necessarily assume that the smoke unit is shot just because it's cruddy with smoke pellet residue.  When first I got back into 3-rail trains in the early Seventies, my own 2026's smoke unit was a mess, and I figured it was a hopeless case.  But once I cleaned out all the decades of built-up waxy crud, it worked fine.  And with some fresh shredded fiberglass stuffed into the now-clean smoke chamber, it worked like a charm with smoke fluid.  Same with my other PW steam locomotives.  I've never had to install a new smoke unit just to use liquid instead of pellets.

Your 2026 should be good for another century's worth of running.  Just make sure your young son understands that running it full throttle through tinplate curves will result in it leaving the rails at high speed.  I learned that particular lesson when I was four years old.  Fortunately, there was a thick carpet to prevent any damage, but I never tried it again!

 

Another E-unit trick is to hold the contact arm tight with a pair of needle nose pliers after moving the lever 90 degrees to the left so the short part of the arm is above the coil bracket and the bent the arm inwards so there is a slight bow to it. this will put more pressure on the arm against the fiberboard and the lever will not be so sloppy.

There is no need to replace the element with a liquid smoke kit. The original style elements work great with liquid smoke fluids.    And as some of the above posters have indicated......any kind of shim that will fit behind the lever will tighten it up. Styrene. cardboard, thin washers etc. I, for one, never move the levers. I prefer the option of getting all the "gears". So, that shim will never move.

Roger

Thanks again!

 

I tried running it with the lever taped so that it wouldn't jostle around, and it runs around the track!  So I will tighten or shim the lever to correct that issue.

We are running it on Fastrack with a Lionel CW-80, with O-36 curves.

I did notice that it does not run all that fast with the CW-80 at full throttle, and that it does seem to have spurts of high speed here and there on the track, so maybe the gears need some grease.  It is LOUD!!  The loudness sounds like a mechanical noise, not an electrical buzzing or humming, too.  But she is running!

 

 

Jim 1939 posted:

It shouldn't be loud. Look behind the drivers and find the armature shaft ends. A small drop of oil on each end should quiet it some and don't forget the axles and gears.

Agree completely.  The 2026 is normally very quiet in operation.  Make sure the moving parts are properly lubed (but not over lubed).

 

There could be another issue lurking here. That engine does not have rollers, it has sliding shoes which can be a real PITA over switches and UCS tracks if they are worn or maladjusted. If they are grooved out, I'd replace them and at the very least, bend them upwards a bit to make better contact with the track.

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