@harmonyards posted:You won’t know how things are going to land until you attempt to fit things.....as you already know, those non-flanged bearings will never work....that’s got to be the first order of business, then, attempt to land your worm gears, get all of that set up, and working properly.......then worry about dog bones, I question that flywheel, it’s a very tight fit in a MTH with the stock 30mm as Lou I believe pointed out to you earlier...I’d be careful altering motor mount location if the flywheel doesn’t clear things, you may wind up with body fitment issues, and that’ll be like trying to cure a mosquito bite with a shotgun...think things through, and you’ll be ok.....biggest issue I see is making sure you’re on the axial centerline of the worm shaft/worm wheel when you set your shafts, so the worm shaft don’t eat your worm wheels for breakfast.....the shafts are as hard as darn it, the worm wheels are much softer, and they’ll give no warnings they’re be eaten alive...
Pat
As you guys suspected, the 30mm flywheel was a tad too wide and the forward edge was interfering with the rear drive wheel flanges.
I was able to machine off that corner and now the flywheel clears the drive wheels by half a millimeter in the worst case position of the drive wheels being bottomed out as close to the inside of the chassis as possible.
Better news is that the short dog bone and both worm shafts will be able to work with very few changes. I've got two more flags bearings and some small 8mm shaft collars to install as hard stops behind the bearings. The shafts themselves are just fine length-wise, but the couplers need to be a bit further apart than nominal on the long shaft for the coupler bodies clear the machined housings.
The long dog bone is too long. A second short one would fit perfect, so I'm going to order that from Lionel. Or I might just cobble one together.
Well on my way to mechanically tying this up. Next I guess I have to find those MUX boards.
Initial rough lineup:
After machining flywheel and seating rear worm shaft. Still need to get a collar, but this will be a good fit.
Not bad for a bunch of parts bought at half price from a competing manufacturer!
