So.....
on another post that I clouded up, pictures were posted of changing out the worm gear to get a good drive(?) out of a gear box.
half way down:
WHAT’S ON THE WORKBENCH AT THE MOMENT | O Gauge Railroading On Line Forum (ogaugerr.com)
Not knowing what I had, I went inside. The problem here is that the gear box tower inside this Challenger, reduces the drive by a factor of 8 1/2 times, if I counted correctly. That means the motor has to spin 8 1/2 times faster to get the wheels to spin at a given speed. ( if I explained that correctly.)
No wonder this thing is cranking out some huge RPMs.
So it's not the worm gear here. It seems to have a decent angle (Spare MTH shaft in the pic top right, I ordered for another engine).
It's the gear reduction tower causing the huge RPM required.
So............... maybe a direct belt drive??
Maybe swap out the top shaft and add belt pulleys to each?
Upper shaft diameter is .120" (3mm)
lower is slightly thinner .117"?
Something replacing this tower?
What's next, I don't know.
