Vision Challenger no pulling power

Between the first & second set of drivers on the front drive block, there’s a tongue that sticks up and holds a spring & cup washer. See if that spring is collapsed or the cup washer is jammed …..that spring & cup washer is what’s supposed to support the boiler course level so the rear wheels on the rear block ( which are fixed to the boiler shell ) sit firmly on the rail head,……if the spring is mushed, or messed up, maybe try a slightly stiffer spring ……

Pat

Well that's definitely something I never thought to look at. While the spring isn't mashed or bound up it dose seam to be a lower "duty" spring than the one on the original VL Challenger I have I might just try replacing that and see how it goes.

Thanks Pat!

Good luck. I hope you get it fixed.

Pat comes through again with the mechanical explanation!