gunrunnerjohn posted:I'd do the normal maintenance on the motors, lube, clean the commutator, make sure you have good brushes, etc. I'm also of the opinion that a contributing factor is likely the power draw and poor power distribution to the tracks.
John,
There was one early TMCC GG1 with the magnet issue. I reglued about 10 of them over the years. I don’t think anyone could believe the effect the magnet shifting had on performance. You might be surprised. Although, It may not be HIS issue. But, it was so bad on the one production run of GG1's. It's worth the mention.