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Author Topic: Extra weight for pilot truck on American 440 steamer  (Read 255 times)

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Offline geoeisele

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Extra weight for pilot truck on American 440 steamer
« on: October 03, 2018, 10:38:47 PM »
Hello everybody. First post here. I have an Atlas steam engine, American 4-4-0, and it runs like a finely tuned expensive clock, just really fun to watch, but the front or pilot truck is so light it derails often when going over joints in Kato Unitrack. The slightest difference in rail heights seems to throw it off, on curves or even on straights. Do you know where I might find a lead material that could be shaped to fit the extremely tiny space atop that truck to hold it down? I heard from another modeler that he had great success with this method, but I don't know where to find such a material. The guy used a material that he said was soft lead, and pliable, so it could be formed to fit the space (then very gently glued on). Any help would be appreciated. Thank you.

Offline themadhippy

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Offline geoeisele

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #2 on: October 04, 2018, 12:11:40 AM »
Thank you, themadhippy. I will look for this product here in the U.S. Seems possible I could form a "box" or mold of the proper shape and pour this into it. Also looking into a fishing lure that could be shaped. Appreciate you sending the link. Edit point: I was able to find it on Amazon. Thank you again.
« Last Edit: October 04, 2018, 12:36:41 AM by geoeisele »

Offline Bealman

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #3 on: October 04, 2018, 12:29:24 AM »
G'day from Australia, geoeisele, and welcome to the NGF!  :thumbsup:

I'm thinking it may be possible to carve a tiny sliver off a fishing line sinker which might possibly do the job.
Vision over visibility. Bono, U2.

Offline geoeisele

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #4 on: October 04, 2018, 12:42:13 AM »
Thank you, too, Bealman. Yes, someone a few years ago gave me that idea. I have not attempted this modification to the loco until now. This fishing lure approach might be easier. I'll check good ol' Walmart fishing department. Wondering if an Exacto blade would cut and shape the material. The space on the truck is super tiny, since the weight cannot touch the rotating arm that attaches the truck to the engine and allows it to pivot, and also cannot touch the axles, of course. This will be a touchy job requiring a steady hand and magnifying glass!

Offline Newportnobby

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #5 on: October 04, 2018, 10:07:32 AM »
Hi geoeisele, and welcome aboard :wave:
Before you do anything permanent to the pony truck I'd suggest maybe you experiment with Blu-Tac or something similar to establish what weight you need to cure the problem. It may only require the tiniest amount.
https://en.wikipedia.org/wiki/Blu_Tack

Offline geoeisele

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #6 on: October 04, 2018, 03:41:03 PM »
Thank you for another excellent suggestion, Newportnobby. That makes two products I had not known about, Blu Tack and Liquid Gravity. I really appreciate your advise, because the Blu Tack seems like it might work without risking a locking-up of the truck's moving parts. Looks like it might also be good, in minute amounts, for holding N scale people in place on sidewalks, etc, too. Thanks again.

Offline Newportnobby

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Re: Extra weight for pilot truck on American 440 steamer
« Reply #7 on: October 04, 2018, 04:24:12 PM »
Looks like it might also be good, in minute amounts, for holding N scale people in place on sidewalks, etc, too.

Even a very small amount would lift N scale people up slightly so I'd suggest a small piece of clear double-sided tape for that purpose.

 

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