Bachman 93938 making noise

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lvis_theking2000

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Hello everyone, recently I bought a used Bachmann 93938 yellow open tram. I have been running it for a little while and noticed that there seems to be a grinding noise while it drives. The noise is more noticeable when the tram is just starting, and gets a little bit quieter when the tram is up to speed. Would this be a gear issue or motor issue? How hard might it be to fix this? Does anyone have any pictures that they can share so I can get an idea of what I will be seeing and have to do?
Thanks
 

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If it goes clunk, clunk, clunk, the gears have split. Quite normal in these trams. I have yet to find spares. As Fred says, replace the motor block with a USA trains unit.
 
Thanks everyone for the information. I decided to open up the motor block to see what was going on and found a stripped gear inside. For now I just flipped the gear 180 degrees and that seemed to be a temporary fix, however I will definitely look into upgrading to the USA trains motor block at some point after the holidays since my kids and I love this tram.
 

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Somewhere on this forum are a few notes on fitting an USAT motor. I'll try & find a picture of one thats been converted.
 
I used the USA block and now have much better running of this tram. LGB block is better but I do not run it enough to spend the extra $$ on the LGB motor block. I did add weight and pull several cars when in 'Maintenance mode". Also USA Trains is about 35 miles from me.
 
Dan said:
I used the USA block and now have much better running of this tram. LGB block is better but I do not run it enough to spend the extra $$ on the LGB motor block. I did add weight and pull several cars when in 'Maintenance mode". Also USA Trains is about 35 miles from me.
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lvis_theking2000 said:
Hello everyone, recently I bought a used Bachmann 93938 yellow open tram. I have been running it for a little while and noticed that there seems to be a grinding noise while it drives. The noise is more noticeable when the tram is just starting, and gets a little bit quieter when the tram is up to speed. Would this be a gear issue or motor issue? How hard might it be to fix this? Does anyone have any pictures that they can share so I can get an idea of what I will be seeing and have to do?
Thanks
Click to expand...

The LGB motor block is not a perfect match to meet the axle boxes both ends of the Bachman Tram chassis, neither were the USA block I used with the side frames on a bogie I made. But pretty close and much better runners as Dan says.
 
A few pictures of a USAT motor fitted on a Bachmann tram
Photo 1 (Medium).jpgPhoto 3 (Medium).jpgPhoto 7 (Medium).jpgPhoto 9 (Medium).jpg
 
dunnyrail said:
Looking at those pics the motor block looks a perfect fit to the Bachman Tram, I wonder what occured on my conversion. Will have to look n take some pics later.
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The NW2 motor is a good match. The right wheelbase & the right height. Just glue it on the underside of the tram. I tried an LGB motor but it is too short & too high.
 
Just to confirm what's already been said the Bachmann tram motor block has an 85mm wheelbase, while the USA Trains NW2 one has a 84mm wheelbase (while the standard LGB one is only 76mm).

Best Wishes

David
 
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