Bachman 2-6-6-2 motor replacement

MTG Garden railway

MTG Garden railway

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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
 
Have you tried the Bachmann forum
 
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)
 
Yeah it’s too bad.
beavercreek said:
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)
Click to expand...
thanks for the info I will look into it further
 
MTG Garden railway said:
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
Click to expand...
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
 
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.
 
philg said:
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
Click to expand...
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
 
philg said:
The initial drive from the motor appears to be via a 1:22 worm drive, so you will need the correct worm as well.
Click to expand...
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.
 
Fred2179G said:
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.
Click to expand...
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
 
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