Remove Flywheels

[samgolden]

Does anyone know how to remove the Flywheels from a motor that came out of a "Backmann Plus" F7 loco. The motor has bad bearings and I have a replacement motor and I can't get the flywheels (plus the couplings) off the old one.

Thanks in advance Sam

[Anonymous]

You need a puller - a device that usually has a threaded rod in a frame - you place the flywheel on one side of it and tighten the bolt to press the driveshaft out. However, considering the price of these items you might want to consider buying new flywheels. (unless you're planning to branch out into loco repairs...). The driveshaft couplings should just pull off with enough force - I would be wary about using mechanical aids (pliers, etc) to remove them as it might cause damage.

Just a thought, but what's wrong with the old bearings - are they worn out or do they just need a drop of oil? I've had a few motors previously thought to be dead that powered up after this treatment. Hope this helps!

[rrgrassi]

I converted a Bachmann Plus "F7B" dummy to a powered "F7B" using the running geard and motor from a Bachmann Plus I picked up for $20 at a LHS. You can also pickup new powered units on various web sites for about $16. Good luck!

[samgolden]

I got the flywheels off. After looking at them more closely I made a tappered fork /wedge and worked it in between the end of the motor and the flywheel and coaxed them off. The tool looked like a tye rod remover fork for the steering rod on an automobile, only 1:87 scale.
The motor was no good, it used to run, but the armature was sloppy in the bearings. Lube. wouldn't help because the bearings were worn out. Just the motor running, out of the chassis and holding in your hand made a lot of noise.
Railroading_Brit 's reply got me to thinking and I work on cars alot, so connected the two. I have made pullers before but not that small.
Thanks for the replies. Sam