my 1946 lionel 671

[t.rob69]

Hi, I'm new to model railroading and I hooked up my 1946 671 "atomic" with tender and it only goes in reverse.Any solutions?thanks,terry.

[Stourbridge Lion]

t.rob69  Welcome to Trains.com!

[overall]

It could just be stuck in reverse. Try this procedure;

1) Flip the switch on top of the loco to the opposite side.

2)Bring up the track power. If it runs in reverse shut it off immediately.

3) Turn it back on. It should be in neutral where it doesn't move at all.Turn it back off.

4) Turn it back on. It should now move forward. If it doesn't then something is wrong with the E unit. This is a solenoid activated switch that changes to loco's direction.

George

[lionelsoni]

Is the e-unit (the reversing unit) turned on?  Unlike most postwar Lionel locomotives, this model's e-unit is enabled by putting a plug into the leftmost of 5 terminals on the motor's brushplate, and disabled by putting the same plug into the rightmost of those terminals, which is the one that the plug is connected to.

Here's a wiring diagram:  http://pictures.olsenstoy.com/cd/locos/671-1.pdf

 

[t.rob69]

in the left side and runs without the plug in.  does nothing in the right side.and there is no lever to move   for forward or reverse

[t.rob69]

george there is no lever to move forward or reverse on this engine.

[EIS2]

lionelsoni

Is the e-unit (the reversing unit) turned on?  Unlike most postwar Lionel locomotives, this model's e-unit is enabled by putting a plug into the leftmost of 5 terminals on the motor's brushplate, and disabled by putting the same plug into the rightmost of those terminals, which is the one that the plug is connected to.

Here's a wiring diagram:  http://pictures.olsenstoy.com/cd/locos/671-1.pdf

The note on the bottom of the wiring diagram says to plug the unit into jack #2 if you want to use the e-unit or if you want one-direction operation.  A little confusing...

Earl

[lionelsoni]

The note is wrong.  It should read, "To place E-Unit in the circuit insert Plug into Jack No. 2.  For one-direction or for electronic operation, insert Plug into Jack 1."

"[The] e-unit is enabled by putting a plug into the leftmost of 5 terminals on the motor's brushplate, and disabled by putting the same plug into the rightmost of those terminals, which is the one that the plug is connected to."

[cwburfle]

I find that It can be confusing trying to identify which jack is #1 and which is #2. The jacks are inside the engine's cab, on the motor's brushplate, just below the roof.
If you look carefully, you will see that the little plug's wire is soldered to a terminal just above one of the jacks. When the plug is pushed into the opposte jack, the reversing unit is turned on. When the plug is pushed into the jack just below the wire, the reversing unit is turned off.

[lionelsoni]

Since there are only two possibilities, it is practical here to resort to trial and error.