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[quote]QUOTE: Originally posted by AltonFan I vaguely remember reading that this problem may be a result of too much spring in the spring that keeps the pilot truck in contact with the rails. It was recommended that a few coils be removed removed from the spring, and the pilot will track better. [/quote] I was going to suggest taking 1 or 2 coils off the spring and see if things improve. You only need enough tension to keep the pony truck on the tracks. If it's lifting the entire locomove off the tracks, you have too much spring in there and it needs to be shortened a bit at a time. All you're doing in the pony truck by adding weight is counteracting the spring.
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