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 Posted - November 16 2012 : 12:10:44 PM
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Can anyone tell me why my Bahcmann 4-8-4 keeps doing this about every 20 times around the track?
it keeps getting caught right there and I hoping to file this down some but I'm not sure, help!
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 Posted - November 16 2012 : 12:39:23 PM
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Is your main rod getting stuck on a side rod pin and the piston being poped out of its slide?
frank
toptrain
" It's a Heck of a Day " !!!
Edited by - toptrain on November 16 2012 12:40:13 PM
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Posted - November 16 2012 : 12:56:03 PM
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Phillip,
Whats happening is that Bachmann in the early years used "pins" as side rod bolts as the rest of the model steam loco community used and they work them self loose with the movement. You can do the following, tap for a 0-80 thread machine screw with a hex head, OR try to add some light weight super glue to the end of the pin to hold it in place, NOT much tho, as if you ever want to remove it for maintenance, it will be difficult to do so.....
IF you wonder, light weight super glue, the cheap stuff, as you want that pin to remain freeable from the driver without breaking the driver.
I'd actually go the route of adding a 0-80 thread machine screw and NOT over tighten it, as that always seems to be the best choice.....BE sure to see if you need a bushing to keep the screw centered in the hole in the rod itself.....
~John
Many have tried to, and failed, ya just can't repair stupid... 
Do NOT try to Idiot-Proof anything!!!! God, will simply create a better......IDIOT!
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Posted - November 16 2012 : 2:58:52 PM
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| Use blue Lok Tite, that'll hold it w/o being permanent like the red.
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Posted - November 16 2012 : 3:23:10 PM
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I say use a screw if you're good at steamer work. If not, do what Bob says.
" Heck with counting 'em rivets, TRAINS ARE FOR FUN! Not called the Mad Scientist for nothing either!"
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Posted - November 16 2012 : 3:56:39 PM
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quote:Can anyone tell me why my Bahcmann 4-8-4 keeps doing this about every 20 times around the track?
Originally posted by GG-1 Guy - November 16 2012 : 12:10:44 PM
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Cuz it's a Bachmann. 
The Tyco Depot
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