I had the Y-3 here and took it apart to make a few minor repairs that 
occurred during shipping just before the O&S West meet. Nothing really earth 
shattering. I can report that the Y-3 does have two good motors, not your 
typical Chinese junk.Each motor drives the main driver on each of the two 
mechanism's and that main driver is what turns the other drivers, just like on 
a scale brass model. The gearing isn't some clock looking gearsThe boiler and 
tender are both nicely done die castings.

 There are no wires between the cab and tender. The tender has some things 
inside that I would take out. One is a little contraption that allows the 
locomotive to run around American Flyer style curves. The other is the 
electronic coupler wiring for the; "Lobster Claw" coupler. 

  I ran the model using a American Flyer 30B transformer. It is possible to 
teach this thing what to do. The only problem I had was the 30B puts out a 
constant 5-6 volts to the track. It's a flyer thing.

  The model does reproduce the slipping effect of one engine turning the 
drivers over faster than the other on hard acceleration, how neat. The model 
also changed volume under acceleration and lowered it when reducing speed. 
There is a volume control switch built in, A smoke control switch built in.

      Lionel does have the clock work looking gears on the SD-70 for each of 
the wheels. I personally do not like exposed gearing like that. It provides a 
perfect situation to get the gears jammed while running.

 
Rusty, on the left Coast, Rustermier


> 
> But, I understand later offerings from these two manufacturers ran better, 
> but I never went back after my 1st experience. This still leaves a couple of 
> issues like having a motor sticking up in the cab instead of a cab interior, 
> tons of electronics to control the two motors and the exposed gears between 
> the truck and the sideframes.....at least on the O scale locos. I've never 
> seen the MTH or Lional "S" locos 1st hand so I'll have to hold my judgement. 
> 
> Butch Holtgrieve
>




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