9v motor with Power Functions?

[Mr Hobbles]

Morning! :)

Does anyone know if its possible to power a 9v train motor through Power Functions via the plug ontop of the motor, instead of the rails?

Thanks!

[XG BC]

Yes it is possible however the metal wheels will be powered too as the connector was originaly desinged for the lights and is simply directly connected to the motor aswell as the pickup wheels.

XG BC

[dr_spock]

PF extension cables have a 9V compatible connector on one of the ends.

 

[Mr Hobbles]

@XG BC I expected that to be the case, however I'll be using plastic tracks, so it shouldn't make a difference thankfully.

@dr_spock Yep - in fact that's how I'd hope to achieve this, but I wanted to double check that hooking up a PF battery box in this way would actually drive the motor.

Thank you both for the answers, they were exactly what I was hoping for. :)

The reason I'm asking is I'd like to convert my Santa Fe to Power Functions. The trouble is using the Power Functions motor, I'd have to use Technic axles to connect the wheels, which wouldn't fit with the light grey bogey sides. This way I can hook up the 9v motor to Power Functions and use the original light bley sides.
 

Edited April 19, 2020 by Mr Hobbles

[zephyr1934]

16 hours ago, Mr Hobbles said:

The trouble is using the Power Functions motor, I'd have to use Technic axles to connect the wheels, which wouldn't fit with the light grey bogey sides.

If you do not mind light blay, they did make the PF motor sides in that color. It might be worth seeing if you can get a pair of 5 long technic axles to work for the motor. The wheels might be a little loose but on the other hand it might work. Or you could try shaving down a 6 long technic axle so that it is exactly as wide as the motor wheels.

[LegoDW]

Not sure how many hours you are planning to run your train, but if not too many coating your plastic track with copper foil tape does work for a bit.  Lot of Youtube videos on the subject.  Cheap option for limited use.