Engine Loco odour

[Alan564017]

hope this isnt too daft but here goes. I have two MM 121's B125 and B131 DCC, no sound. Both run fine no issue there and they have reasonably low mileage. 

After running for a while, there is an odour from B131, the best way I can describe it is a 'Scalextric transformer' odour, its not pungent or foul. You have to get very up close to notice. 

It doesnt get hot or impinge on anything, is there any possible latent issue, do some parts need oiling? 

[BRBlue]

12 hours ago, Alan564017 said:

hope this isnt too daft but here goes. I have two MM 121's B125 and B131 DCC, no sound. Both run fine no issue there and they have reasonably low mileage. 

After running for a while, there is an odour from B131, the best way I can describe it is a 'Scalextric transformer' odour, its not pungent or foul. You have to get very up close to notice. 

It doesnt get hot or impinge on anything, is there any possible latent issue, do some parts need oiling? 

You know there is an electric motor in it?

[David Holman]

As long as nothing is getting hot, would hope all is well.

[DJ Dangerous]

Might be an idea to run both with bodies removed so you can compare the heat from various components.