Large Scale Central

Replacing Bachmann Motor

I have a Bachmann Porter (1:22.5) with A BBT chassis and the Mabuchci motor makes noise. Does anyone know what a decent replacement would be? I do not know the specs on the motor that is in there, so I do not know what to get. I have heard that Pittman is about the best, but would entertain another brand if available and a direct replacement. also, how would I get the brass worm gear off the old motor and on to the new motor without damage. Help if you can. TIA

Call Bary Olsen at BBT. I don’t have the number, but it is on the forum somewhere.