There is a 2-R MTH premier engine on the Bay that has my interest. The specs indicate that it can be converted to 3-R. I have no idea what this would entail in labor, skill, and cost. I'd appreciate any help the forum members can provide. Thanks, Paul
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A simple switch on the bottom if it has PS3.
However, be careful about turn radius. A scale engine usually needs twice the min curve as a 3R engine. More important on steam than on a diesel because scale engines don't have "blind" driver wheels. What you have to look out for on a diesel is having fixed pilots (usually with scale couplers...but those can be replaced for a few bucks).
"A scale engine usually needs twice the min curve as a 3R engine."
Not a bad rule of thumb if you are dealing with a "true" 2R loco - that is, one designed with no thought or even awareness of 3-rail O "scale".
But - this is an MTH locomotive, designed to be used in either 2- or 3-rail environments. 98% of the loco is the same in either environment (I'm speaking mechanically; the electronic change is indeed usually the flip of a switch), so the curve limitations are lessened or even non-existent. Fixed pilots are made to be un-fixed. Leave them fixed if possible - looks better - but your curves and usage will determine this (leave the typically "front" one fixed, maybe?)
The MTH instructions will tell you all; center-rail pickups are screw-mounted. Wheel sets are designed to be changed, if needed. MTH designed these things to be converted, so it's not scratch building time.
Try their website to start. There may be printable material. A reputable dealer may be able to help.
I'd offer more but I've never done it - can't be hard - it's designed in.
Also - post your question over on the 2-Rail O or 3-rail Scale Forums.
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