Trying to get a 6220 bell ringer up and running. Rebuilt the e unit and the engine is still giving me problems after cleaning. I pulled out the motor and put leads directly to it and the engine runs only after I tap the armature. When I stop the engine it needs a tap again. this is the 1949 version engine. Upon further inspection I noticed that there is no thrust washer or thrust bearing at the armature shaft. There is only the retaining clip. Is this what is causing my problem most likely?
This is isn't my train and I think a lot of folks have messed with it so I am trying to figure out what could have been messed with.
That is definitely your problem, if the thrust washer and bearing are not there. The thrust washer is 671M-19, and the older versions used small ball bearings (9), but the best replacement is 681-121 which is perfect match. Just make sure you give it a good lube, and the problem should go away.
Not for sure but you might be on to something as it does hold it position to a point so it's not leaning one way or another. so it's supose to be thrush washer 9 ball bearings thrush washer at the top and the bottom, there's suppose to be two sets of them.
Life's hard, even harder if your stupid John Wayne
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The 681-121 is a better bearing to deal with, compared to dealing with 18 little teeny tiny ball bearing, (9 top, 9 bottom, plus washers). No need to mess with a perfect replacement. They are all I use on my S-2 turbine motors, which I have five of.
You talking about these? Looks way better this way.
Joined 1-21-2011 TCA 13-68614
Kev, From The North Bluff Above Marseilles IL.
How are you going to fit a 681-121 bearing race where the ball bearing go?
Thanks for the recommendatioNs. I am going to speak to Jeff Kane at the train tender to see what he recommends.
Good idea, That picture came from Jeff's site. He should know.
The 671M-19 thrust washer and the 681-121 are the same diameter.
That does not mean that the ball bearing race can be substituted for the loose bearing balls. On the turbine motors, the bearings that are mounted in the motor housing. have a recess for the loose bearing balls. I'd have to check a 1949 diesel motor.
Have you tried replacing the loose balls with a 681 bearing race. If so, what did you have to do, if anything, to make it fit?
I don't own any diesels, and it was a suggestion only. What I do own are 5 S-2 turbines, and the bearing 681-121 is perfect for replacements. I don't like the idea of messing with all the individual ball bearings, as the case of the 6220 needs 18 total, and ultimately you have to use tweezers to pick them up. To me it is too much grief, if an alternate will work. No argument from me, if it doesnt work. The bottom line is that the original OP needs the washers and bearings, to cure the problem.
What I do own are 5 S-2 turbines, and the bearing 681-121 is perfect for replacements.
Drop in replacement?
If you are asking if the 681-121 is a drop in replacement on the 671/681/682/2020 motors(angle mounts, 1949 & later), the answer is yes. I had an original 2020 from my childhood, and wound up buying 4 more S2's, and used that bearing when I rebuilt the motors. All run perfectly, including an experimental motor that I bought with multiple breaks in the field winding. I decided I had nothing to lose, and removed the brush plate studs that passed thru the motor, took all the wire off, and rewound the field coil, by hand. It doesn't look perfect, as far as the studs, but it runs like a champ. I at least saved an otherwise junk motor.
I am fond of turbines too. I think the first diecast bodied steamer I owned was a 1946 smoke bulb turbine. It was given to me, along with the rest of the set, by an aunt. I guess I have a few, and have serviced many more.
CW, I agree that certain locos hold a fondness, over others. My childhood locos were the 1949 vesion 2020, and a 2056. Those are special to me. My trains were given to two cousins in the mid '60s, expecting to never see them again. A year ago, my youngest cousin wanted to know if I wanted my trains back. Got them, plus a whole lot more. The other loco was the 1615, which was my wife's train. I have five now, as complete sets(1527 & 1549 sets).
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