Wobbly Turbine?

With the weight of a steamer I've never had a "traction tire inducted wobble" that for me has been somewhat common in diesels  until they are run or sit on a shelf on the flanges.

Traction tires tend to flat spot while the loco sits in the box on them.

The best way to check the tires is, if possible, run the loco at a crawl and put the rail at eye level. Watch the rear driver and see if there is a rise and fall from the top of the rail in relation to the tire.

Sounds like the driver wheels may be out of quarter.  Although remote, it is possible that one of the axles is bent.

Fred

Tim: most likely this isn't something you'll be able to fix yourself.  My suggestion would be to make a video (best quality that you can) which clearly depicts the problem.  Post a link to it here on the forum, and see what other Turbine owners have to say.  If the consensus is that yours is worse than average, you'll know that a repair is required.

If you don't want to send the loco to Lionel's service center in North Carolina, they *might* be willing to sell you a replacement frame with the driving wheels and main drive gear already installed.  It won't be cheap, and it will still be a major repair.  Good luck and please share what you find out.