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I am in the need of 3 motors for 3 different F3-A and powered B units. These were released in the 2003 to 3004 time frame.

 

Here are the details of these motors I am looking for, which is the same motor I need in all the the 3 units:

 

Lionel Product number: 6-24556 Union Pacific  F3 B Diesel Locomotive

Train Master Control 

 

The Lionel PN is 620823010, it is the motor with the flywheel, sensor board and .326 diameter worm drive.

 

Lionel will not service it or repair it. And they no longer stock these part numbers.  I have called many a places and they do not have.

 

What is the most economical way in repairing these units. Keep in mind they are coupled up with other power units in the A-B-B-A lineup.

 

Thanks for the help in advance.

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Editorial:

 

An eloquent demonstration of the problems with modern, un-repairable model RR equipment. If these things had been $50 each, or were 40 years old, OK. But, toast at 10 years? Requiring an electronic gutting to ERR (as long as that option lasts...), let's say?

 

I have modern stuff. This scenario is awaiting all of us. Some in years, some next week.

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Sorry. Not helpful with the current problem. Back to your regularly scheduled thread.

 

And best of luck; I sympathize. 

Last edited by D500
Originally Posted by Norton:

That is pretty bizarre. The bearings are oilite. Apologies for asking but have you tried a drop of oil on each end then turning by hand to see if they free up?

BTW the motors are common as dirt Mabuchi RS385s. What would make them different is the gear.

 

Pete

Yes, I have, they free up a bit but not enough, the sister motor starts to heat up and is hot to the touch.

Yes I ordered by mistake the other motor Lionel lists as the repair for this unit and the worm is a .354 inch in diameter. 

Is there a way to pull the worm off and swap it?

You can remove the worm, I have done it, but it is difficult and requires a strong puller. I did it without heat but if I had to do it again I would heat the gear using a resistance soldering pencil or maybe a mini torch.

The hard part is reinstalling the gear without bending the shaft. What I ended up doing is drilling out the bore and using CA to hold the gear in place. Again you have to be careful not to get the CA in the bearing.

It would be easier to get the non sensor motor, remove the flywheel from it and the flywheel and sensor from the bad motor and reinstall using the special flywheel plus magnet with the set screw. No danger of bending the shaft assuming you got the original flywheel off successfully.

Still puzzled though on how many motors would seize up unless the gear or flywheel is pushed up against the case.

 

Pete

Originally Posted by Chuck Sartor:

Lionel lists the part number you listed as available. (620-8630-010) This is without the sensor board. The one listed with the sensor board is 620-8630-011 is the one not available. If needed you can replace the motor without the sensor in place of the one with the speed sensor and use a ERR TMCC kit for the speed control.

Hi Chuck- thank you for your reply. Surprised I got the wrong numbers from Lionel-

motor with sensor = 620-8230-101

motor without sensor = 620-8230-100

Thanks for the proper numbers.

 

Question on the conversion - if I build the A unit up with this conversion, with the follow B units run at the same speed?

 

Originally Posted by Norton:

You can remove the worm, I have done it, but it is difficult and requires a strong puller. I did it without heat but if I had to do it again I would heat the gear using a resistance soldering pencil or maybe a mini torch.

The hard part is reinstalling the gear without bending the shaft. What I ended up doing is drilling out the bore and using CA to hold the gear in place. Again you have to be careful not to get the CA in the bearing.

It would be easier to get the non sensor motor, remove the flywheel from it and the flywheel and sensor from the bad motor and reinstall using the special flywheel plus magnet with the set screw. No danger of bending the shaft assuming you got the original flywheel off successfully.

Still puzzled though on how many motors would seize up unless the gear or flywheel is pushed up against the case.

 

Pete

Pete - I think your right on the best attack - get the sister motors and add the sensor boards to them and repair kit flywheel and magnets.  How is the sensor board attached to the top of the motor? Also what tool will I need to fasten the repair magnet / flywheel down?

Thanks for the help

 

Originally Posted by BobbyD:

That is a big problem with Lionel having like 4 or 5 different incompatible motor and truck combinations in the scale F-3's.

To be honest Lionel has made so many F-3's... however I have noticed That between the years 2003 to 2005 they do have the same gearing and motors.

It really is bad practice on their part not to supply any more parts for such a needed item. 

Not sure I agree with their policy on NOT repairing any items older than 5 years.

This will affect future customer loyalty. I future products I purchase.

 

Part of the problem is the Chinese factories. They refuse to make spare parts. It's just not in their culture of making disposable assemblies. In addition to that, they refuse to re-make an item the same way they made it last time. They call it continuous improvement.

 

When my buddy lost a motor in a Lionel SP Daylight Atlantic, I sent the motor to Timko. He removed the flywheel and sensor and installed them on a new motor - for a very cheap price.

 

You could try him.

Last edited by RoyBoy
Originally Posted by Norton:

The problem with the ERR solution is J has other Odyssey engines in this setup. Converting them all would get pricey and I am pretty sure it would be difficult to get ERR engines to run with Odyssey engines in a Lashup.

 

Pete

I think Pete is right on this one. I am afraid that If I convert one and not the others they will fight each other over time.

Originally Posted by mk:

Hi,  Putting the gear back on the shaft is easy.  Put the motor in the freezer and the gear on the stove.  When you feel they are ready, put on heavy gloves, slide the gear on, set it down and let it cool. 

sounds good... so it sounds like pulling off the worm would be the hardest part...

Originally Posted by C W Burfle:

Any chance you can break in the motors by leaving them detached from the motor truck, and just running them a while (while making certain the bearings have oil)?

I tried this. Ran them for a good hour and the sister motor got so hot the shell was heating up. I even tried lubing the motor bearings all the the gears and ran for another hour... the sister motor was still very hot. 

What was the tell tail was when I disassembled the motor would not spin as freely as the others felt like there was chewing gum in it....

Originally Posted by Scratchbuilder1-48:

Carefully chuck the motor in a lathe , mount flywheel in chuck , put a center in the worm gear , carefully turn the worm down , .350 to.324 , .026 is only .013 removed , A good lathe man could do it  easily.Not much to remove.

re-cut the worm? Wish I had that skill...and the lathe. My luck a couple of turns and there would just be a nub left...

Originally Posted by Norton:

Another possiblity as to what is causing this is a loose magnet. They are glued to the housing. Can you hear or feel a scraping noise? This can happened if they are exposed to extreme temperatures.

 

Pete

Pete- I hear the scraping noise but it sounds like its coming from the shaft and housing, but I hope its this easy... will check it tonight...

Originally Posted by RoyBoy:

Part of the problem is the Chinese factories. They refuse to make spare parts. It's just not in their culture of making disposable assemblies. In addition to that, they refuse to re-make an item the same way they made it last time. They call it continuous improvement.

 

When my buddy lost a motor in a Lionel SP Daylight Atlantic, I sent the motor to Timko. He removed the flywheel and sensor and installed them on a new motor - for a very cheap price.

 

You could try him.

Where do you come up with these notions?  So the Chinese tell you how your contract will be done?  A manufacture sends in a request for work and quote, and the Chinese provide the cost to produce.  If you want 50 extra consumable motors, gears, and such, you put it in the RFQ.

 

For something like a motor, many times they are out sourced.  So if your making 1000 units you can order 1050 motors.

 

It is the manufacture that allows the Chinese to do it the way they want to, usually to get a better cost estimate.  If you really want all the F-3 motors to be the same you spec if that way, and you QA the product before full production.  G

I agree with Rob-- you'll have to cannibalize from a donor loco of similar vintage.  Welcome to repair in the modern era.

 

Lionel went through a rapid evolution during the 2000s, from using a clone of the Korean-made MTH/Weaver truck block, to the single axle "LionDrive," to back-drivable Legacy with all wheels powered.  I'm not sure how much they changed the chassis, or how that impacts the interchangeability of motors.  But I would even look into upgrading to Legacy by buying the replacement parts for later-model F-3's.  Kind of like putting a new DOHC Ford 5.0 Liter into a '65 Mustang.  No, the train wouldn't be original, but it would be better.  Buying the parts individually isn't *that* expensive, relative to the cost of a new loco.

What do the Chinese have to do with this motor? Mabuchi is a Japanese company. They are responsible for the quality regardless of where its manufactured.

J, I think Rob suggested your best solution. Send the motors to Frank Timko. By the time you order the parts and puller you will likely have spent what Frank would do it for. BTW Frank sells the puller many here recommend getting.

 

Pete

Last edited by Norton

True if it is a Mabuchi.  What makes you think they are?  Many have adopted the nomenclature and size standards but they may not be a Mabuchi spec motor.  Same with Pittman now Ametek.  There are other manufacturers that make the same size, shape and look Pittman motors.

 

Unless it has the Mabuchi stamp or sticker, who knows who's motor it is.  G

What is / who has Mr. Timko's contact information? After reading this I have concluded that it might be better to get him to do the work unless you can find unit to bust up for parts. I feel you pain

 

Today, I called them for replacement traction tires for my new Big Boy and my Milwaukee Road 267 - UP came out last year and the 261/267 a few years ago. I had to speak to customer service/ warranty service to get the "new" traction tire part - using the same replacement part even though the sizes are different. Took a little time, got what I needed. After this post I am going on line and ordering more Traction Tires for all my Lionel units. 

 

Next service and support site is MTH => Hello Midge.

 

Finally, from someone that is in the supply chain and works with Asian manufactures, the OEM is king, you want 1,000 they build 1,000 you want 10,000 they build 10,000. It is up to me to take the risk on holding repair parts. If I run out, I can get more but it would be based on some quantity they quote. Again, I either buy or don't - boils down to costs.

 

Same issue with the track shortage at MTH and Atlas. You need to buy in lots - 

J. Daddy,

I am certainly not the repair expert, but someone mentioned earlier in the thread the replacement magnet for the Odyssey. I am looking for the part #.

 

It has set screws to hold it to the shaft when the originals disintegrate.

 

So, desoldering the small board and putting that on a new motor and then the replacement flywheel\magnet seems like something you can do.

Last edited by Moonman

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