I have a set of four MTH Railking Norfolk and Western passenger cars. These have 2 axle trucks that all roar significantly louder than any other of my collection. 10-15mph speed is about all I can stand. These 4 are seveal times louder than a mix freight of 15 cars on the adjacent loop. Track is RealTrax on carpet.
I have tried a few different oils, but no luck in getting these quieter.
What do you recommend to sound deaden trucks or keep cars from being echo chambers? Grease, adding felt washer between truck and body or something else?
Thanks,
Bill