MTH RS-365SH Replacement

If you can remove the gear you should be able to remove the flywheel. The gears are mounted much tighter than the flywheel. If anything needs heat it will be the gear.

Pete

Thanks Pete.  I will give it a try.

Mike

Where did you find a double shafted motor on line?  Also make sure you have the dimensions for reinstalling worm gear.  Also, make sure you have a plan on how to press gear and fw back on with out bending shaft, or pushing armature out of alignment with the new motor.

Lastly, the last 4 to 5 sequence numbers of the motor define it's operating characteristics.  The first series is just size and magnet and poles.  So not all RS-365SH motors will run the same.  Different voltages, different RPM and Torque characteristics.

You can actually still get motors for your engine.  Just need model number to match the correct motor with all the parts installed (gear, FW, Tach Bracket).  G

I've found double-shaft motors on-line, but I have to agree with George, it'll be MUCH easier to just get the correct motor with the worm already on it.  The flywheels are actually no big deal, I have taken a few off and pressed them back on.  The worm is REALLY on there, they are tough!

GGG posted:

Where did you find a double shafted motor on line?  Also make sure you have the dimensions for reinstalling worm gear.  Also, make sure you have a plan on how to press gear and fw back on with out bending shaft, or pushing armature out of alignment with the new motor.

Lastly, the last 4 to 5 sequence numbers of the motor define it's operating characteristics.  The first series is just size and magnet and poles.  So not all RS-365SH motors will run the same.  Different voltages, different RPM and Torque characteristics.

You can actually still get motors for your engine.  Just need model number to match the correct motor with all the parts installed (gear, FW, Tach Bracket).  G

George,

Thanks for the reply.  The Model of the steam engine that I have is 30-4207-1E It's MTH's Christmas 4-6-0 with proto-sound 2.0.  The numbers on the motor are RS-365SH RD534223.  Is it best just to go to MTH directly for this.  I live about 10 minutes from their plant in Columbia, MD.  Do you know if they would sell that type of part to a consumer?

Thanks,

Mike

Yes they sell parts of this nature to customers.  Clearly the best route in my opinion.  G

So far here's the best puller I've used yet to remove worms & flywheels...

Puller 

I like that little guy, looks like it would be easier to pull worm gears with it.  I wonder if it's up to the task?  I know I can get them back on, I have a one-ton press.

It's a stout little puller made out of hardened steel. Works pretty good but sometimes setup takes awhile getting all 3 legs parallel/ same length. Yes I also have a 1 ton arbor press for reassembly. Press come in handy just to hold stuff aligned for soldering...like brass tubes in smoke unit funnels etc.   

Looks good enough to spend $25 on.

I do not know what motors your working on where you need a one ton press!  I use a simple small vise, with a few pins I have.  Press on FW or gear easily with good depth control because fully visible. G

Well, I didn't "need" a 1-ton press, but it just happened along at a very cheap price, so I picked it up.  I didn't have one before, and it came with a bunch of tool heads as well.