Originally Posted by Burlington Route:
-mbw...nope, you can't 45 the motor....me, I woulda went with another 90 box and had the motor zip tied horizontal right over the truck..but I'm wierd so maybe thats not a good idea....doesn't that spring/belt rub on the truck bolster?
Sure you can. For the car that this is going into, I certainly can, and it's a pretty common practice for trolley freight motors where the motor won't be seen and it also lets you put a decent sized motor and flywheel in as well.
Anyway, I just posted the photo to give an example of what might be doable. I could have made the motor at 90 degrees, but then it's very unbalanced and front heavy limiting the traction efort from the second axle. Horizonal over the truck presents some complications for mounting the drive to the car and making sure there's clearance and mounting space to the car bolster.
No, the transfer spring clears, but just barely! I made that bolster out of hte heaviest brass that would also work for that spring.
OTOH, the more I think about this though, the more I'd just adapt an old Weaver drive unit for this drive here.
I just got started on adapting a Weaver drive into the trucks for an IMP boxcab just to see if it could be done and to use the nice spoked wheels that IMP supplied with those engines.