I have a Weaver Milwaukee Road Hiawatha 4-4-2. Now that I am building a layout, I am able to start running some of my trains. I am using all Gargraves track. My concern is, that the pick up rollers on this engine are throwing out sparks especially on curves. I do not recall having this problem on my brother-in-laws FastTrack set up. Any ideas. I also noted my old Lionel #624 doing the same thing, but not all my engines are showing this problem. Thanks for your help.
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