Proper valve gear positioning for a pre-war AF #420 loco

[vikes88]

Hello,

        Could anyone post photos of the proper positioning of the valve gears on an AF #420 loco...I'm in the process of putting a '420' back together and need some assistance (photos would help) on the proper placement of the valve gears on each side.

       Thanks for any assistance.

[mersenne6]

 I'd recommend reposting this question over on the Classic Toy Trains thread.  In particular, there is a thread - now 45 pages long - by Northwoods Flyer on nothing but Pre-war American Flyer.  I know that both Northwoods and I have #420's in our collections/picture galleries and if I can't answer the question I'm sure Northwoods can.