Wanted: Kato FEF-3 Motor

[mmagliaro]

The length may be a problem, but then again, because it is only 7mm in diameter, it will shove further down into the boiler
than the normal 10mm and larger motors.     A lot of steam, even small steam, is set up to have the short motor in the cab,
with a shaft running into the boiler and then the worm.     With this motor, you are no longer confined to the cab.
So I bet in a lot of cases, we could use the very short shaft and just push the motor down the throat of
the engine.

I have an Athearn 2-8-0 that I was going to rework into a proper NP F-1 (like Andrew Hegstad did).   I never liked the tender drive
on those because although it works pretty well, it makes it difficult to put any newer-era larger tender on the engine.
I wanted to put a tiny coreless directly up in the engine itself.  This little motor might be the ticket.

[peteski]

The length may be a problem, but then again, because it is only 7mm in diameter, it will shove further down into the boiler
than the normal 10mm and larger motors.     A lot of steam, even small steam, is set up to have the short motor in the cab,
with a shaft running into the boiler and then the worm.     With this motor, you are no longer confined to the cab.
So I bet in a lot of cases, we could use the very short shaft and just push the motor down the throat of
the engine.

Yes, but this is a major surgery - not just relatively simple motor swap. To you this is a breeze but most modelers would not tackle such a project. 

Other problem I see is with the removal of all the metal inside the boiler and replacing it with a motor will change the loco's weight distribution (and I know that you are well aware of just how important this is to the pulling ability of the said model).  Of course this all also depends on which axle is driven by the worm.