Sorry, forgot to attach the image of the cracked gear in the trailing A-unit truck! I’ve edited that post to add it.
@Norton posted:Do you see a crack in the worm gear? Its not visible in the picture. With the motor installed, if the gear was cracked you should feel it binding every wheel revolution when you turn the flywheel by hand. Also look closely at the spur gears on the side. Any bit of debris in any of the gears will do the same thing. That is actually far more common than have a bronze gear crack,
Pete
I think there is a crack - see the image I attached to my previous post. I do feel it binding at a regular interval with the motor installed.
@PRR1950 posted:I assume the picture for the trailing A-unit truck is different from the first set of truck and motor pictures. For some reason, the trailing A-unit truck picture doesn't appear in the first post that references its existence? I sure would like to follow along with this analysis.
Chuck
Image is attached now! Sorry for the confusion
