Replacing a Lionel 41-12 worm gear on Lionel's motorized units

My Lionel 56 needs the worm gear located on the axle below the motor replaced. Looks like a project. Anyone ever do that? Must be somewhat common as repo 41-12 gear are easily available.

http://pic80.picturetrail.com/VOL1001/4368153/24761749/413202310.jpg

TIA; Bob

You will need a wheel puller to remove the wheel from the axle and a wheel press to replace the wheel after you replace the worm gear. You will also need to clock the w

I did one on my 2343 I think. I know I did one one time. But it has to be at least 5 years ago. Seems it wasn’t that hard of a job but don’t remember the details.

Thanks for the info. I have no wheel pullers and I assume the gear is also pressed on. Think I better farm this out. Don’t want to break anything.

In addition to the tools that KRM suggested, you would also want to have a pair of the proper wheel cups.

That worn gear is a very common problem.

I suggest replacing the thrust bearing (41-8) and the lower armature shaft bearing when you do the gear.