Bachman 2-6-6-2 motor replacement

[MTG Garden railway]

Hi can anyone help me towards any info for a replacement motor for a Bachman spectrum
2-6-6-2 saddle tank loco?
Ant info would greatly be appreciated

Thanks Terry

 

[PhilP]

Have you asked the Bachmann?

Bachmann Forum

 

[MTG Garden railway]

Yes they told me to look at forums hence why I’m here

 

[MTG Garden railway]

Even buying a new gear box doesn’t come with one I tried and was not very happy

 

[JimmyB]

Have you tried the Bachmann forum

 

[Greg Elmassian]

So they told you to go to the forums because Bachmann does not sell the motors?

Sux.

Greg

 

[beavercreek]

I am not sure if the 2-6-6-2 motor is a Pitmann or a Matsushita or a Mabuchi one.
If it is a direct replacement could be found from the Pitmann dealers, maybe ebay. Also the used motor market (robotics forums tend to have quite a selection)

 

[MTG Garden railway]

Yeah it’s too bad.

I am not sure if the 2-6-6-2 motor is a Pitmann or a Matsushita or a Mabuchi one.
If it is a direct replacement could be found from the Pitmann dealers, maybe ebay. Also the used motor market (robotics forums tend to have quite a selection)

thanks for the info I will look into it further

 

[philg]

Hi can anyone help me towards any info for a replacement motor for a Bachman spectrum
2-6-6-2 saddle tank loco?
Ant info would greatly be appreciated

Thanks Terry

I have exactly the same problem, and posted about it here a little while ago. Like you, I found Bachmann to be less than helpful and I got nothing useful from the forums. I passed the problem to a friend who is a proper engineer and he managed to dismantle the gearbox and measure it up. The initial drive from the motor appears to be via a 1:22 worm drive, so you will need the correct worm as well. We are still working on this (other projects have overtaken it a bit!) but if we get anywhere I'll post it here. If there's anyone who owns one of these locos and would be willing to have a look at the motor to help identify it, it would be very helpful. Incidentally, these engines seem to have a reputation for jerky running. Mine had maladjusted quartering straight from the factory which might explain it.
Phil

 

[Rhinochugger]

Firstly, Bachmann's problem is that same that many companies have, that is batch manufacture. The difficulty with that is the question of spares.

As for the original question, I think firstly it would be prudent to source a pair of motors, the question then is obtaining a motor(s) with the correct physical size (OD and length) and the correct shaft diameter..

From hazy memory, I think the motors have flywheels, so you're looking for a double shaft motor.

You may get a lead talking to some O gauge kit manufacturers.

 

[MTG Garden railway]

I have exactly the same problem, and posted about it here a little while ago. Like you, I found Bachmann to be less than helpful and I got nothing useful from the forums. I passed the problem to a friend who is a proper engineer and he managed to dismantle the gearbox and measure it up. The initial drive from the motor appears to be via a 1:22 worm drive, so you will need the correct worm as well. We are still working on this (other projects have overtaken it a bit!) but if we get anywhere I'll post it here. If there's anyone who owns one of these locos and would be willing to have a look at the motor to help identify it, it would be very helpful. Incidentally, these engines seem to have a reputation for jerky running. Mine had maladjusted quartering straight from the factory which might explain it.
Phil

Coolthanks for the info. I had no problems with mine I had oiled it daily and ran it daily (6 hrs) or more. I think I had about 1500 hrs on it before the front motor gave out and the only reason I noticed was that my amps on my controller went up.running on flat track was .8 on my up and over it was 1.2/1.4.
When the front motor gave out which it still worked at the time my amps were 1.6 flat 2.1/2.3 on up and over The motor underneath the cab is still good. Someone told me that it maybe a mubachi or a pitman motor there was a third one that I can’t remember but it’s on this forum page of reply’s. If I can figure this out I’ll will let you know as well

Happy railroading
Terry

 

[Fred2179G]

The initial drive from the motor appears to be via a 1:22 worm drive, so you will need the correct worm as well.

I usually yank the worm off with a gear puller (a little heat often helps) and bang it back on the shaft of the replacement. (I haven't tried this on the 2-6-6-2.) My experiences with other Bachmann models is that there is usually a model or part number somewhere, which you can use to find a replacement. Many of the smaller locos use a Kader motor shared with the HO models.

 

[philg]

I usually yank the worm off with a gear puller (a little heat often helps) and bang it back on the shaft of the replacement. (I haven't tried this on the 2-6-6-2.) My experiences with other Bachmann models is that there is usually a model or part number somewhere, which you can use to find a replacement. Many of the smaller locos use a Kader motor shared with the HO models.

Thanks for this Fred. I think I'm in a different position from the OP, who has a faulty motor to replace so as you suggest could re-use the worm on any replacement. My unit was bought as a Bachmann spare for another project, so I don't have either motor or worm. I'm sure we'll find a way in the end!

Phil