Vintage Ho 2-8-0 and 2-8-2 chassis types

[ebmtech]

I have recently received a box of disassembled Train chassis, drive wheels, linkage, and body housings for what I believe to be vintage Bachmann 2-8-0 or 2-8-2, I 'm not sure which. The bottom plates are stamped with "Bachmann made in Hong Kong". The chassis are split frame with the motor as part of the right side frame. Also, the motor has a cover which can be removed giving access to the armature. Is there any information or parts diagram available for these chassis types?