SOLVED Proto 2000 0-6-0 Dead Motor (with disassembly instructions)

[Trainman440]

Hi all the motor type was listed as a link in the original post. However, it seemed like everywhere online it was sold out. The ali link above is also sold out. I ended up paying the $14 from the ebay link above. Big thanks to Gary!

Thanks all for the replies!

Charles

[garya]

I also found this one on ebay.  It looks to be the same, but there are no dimensions:

https://www.ebay.com/itm/DC-12V-24V-17800RPM-NdFeB-Five-Pole-Rotor-Dual-Shaft-Motor-Toy-Car-Boat-Model/192942409755?_trkparms=aid%3D1110001%26algo%3DSPLICE.SIM%26ao%3D1%26asc%3D20190920091355%26meid%3Dbe620a6c963349dbbaf9e9033ca37160%26pid%3D100036%26rk%3D8%26rkt%3D12%26sd%3D191946488250%26itm%3D192942409755%26pmt%3D0%26noa%3D1%26pg%3D2047675&_trksid=p2047675.c100036.m2109

[garya]

I found a similar motor at Aliexpress: https://www.aliexpress.com/i/33030663093.html

Not sure if it will work without dimensions, but you could try it.  You will probably be waiting awhile, though.

Edit: I looked at your ebay link and compared dimensions.  It looks the same.  

[BigDaddy]

I don't know what that is, but zinc is not in magnets. 

[RR_Mel]

If you would post the physical size of the motor it would help.  From your first picture I would guess looking at the worm gear that the motor is between 5K to 6K RPM.

 

 

The Mabuchi SF-266 motor above is rated at 7K at 12 volts.  I have used them in several steam locomotive with the same size worm gear very successfully.

 

 

 

I use dual motors to replace the single motor in my Rivarossi articulateds.  The SF-266 is very close in comparison to the Canon EN22, I can’t tell any difference between them.

 

I add 8 to 10 ounces of weight to the boilers of my Rivarossi Cab Forwards and they will pull the paint off the walls. (5.8oz drawbar)

 

 

 

Mel

 

 

 

My Model Railroad   

http://melvineperry.blogspot.com/

 

Bakersfield, California

 

I'm beginning to realize that aging is not for wimps.

 

[MisterBeasley]

Have you contacted Walthers?  I have a couple of their subway trains, the first made by Life-Like, and they did have replacement motors.  I had to contact their service department by email, but they were able to send me a new motor.  These were not catalog items, not did I find them on their web site, but they had them.

[snjroy]

Hi there. It does not need to be exactly the same motor, but finding one would make the job easier. If you go for an alternate 12v motor, make sure to take measurements to ensure it will fit. A flywheel is not absolutely essential. What is also important is shaft size - find one that matches the old one in terms of length and thickness. Mabuchi is a good brand to look for, among others.

Once you have the parts, remove the gear - i use a special puller from NWSL, but you can do it with other tools. Place the gear on the shaft of the new motor - it should be a snug fit. I apply a few strokes on the shaft with a file to give a bit of grip, and glue the gear with CA. Once together, you can attach the motor and gear to the frame using silicone caulk. You might have to build a plastic support.

Good luck!

Simon

[Trainman440]

Hi all!

My proto 2000 0-6-0 with DCC Sound arrived today. I only paid $99 for it, since the seller said it wasn't running. 

Thinking it was a simple fix(unsoldered wire, maybe motor is rubbing on frame, or at worst, a cracked gear), I bought the item. 

Turns out, the issue was far worse. I took the motor out by itself, and realized there was a ton of resistance on the motor shaft. 

I figured maybe the magnet inside got unstuck from the side of the motor frame. 

After the struggle of taking the flywheel off(motor was too big for my NWSL gear puller), I got the motor shell apart, to find that the magnets have desintigrated, presumably from zinc pest(argggggg!! zinc pest my worst enemy!)

This is a first for me, having a motor fail in such a catastrophic way. 

Since the motor is held by a split metal chassis design, I'll have to find an identical replacement motor. 

Does anyone have any suggestions/experience working with a similar issue?

I found a reference image of the motor, from one of those ebay china 12v motor sellers. But I cant seem to find any selling on Ebay. 

https://picclick.com/DC-12V-24V-17800rpm-High-Speed-Strong-Magnetic-191946488250.html

Thanks!

Charles

EDIT: wow, what a conicidence that there are multiple active threads on Proto 2000 zinc pest. However, this one is more about where they sourced their motors, since proto 2000 don't make their own motors. 

EDIT 2: I stand corrected, its not zinc pest, but basically it looks like the magnet crumbed apart. 

EDIT 3: since it seems like few bothered to click the link above that contained all the info of the motor, here's the dimensions:

the shaft diameter is 2mm, the dimensions are: 16mm height, 35mm length, 12.7mm wide.