Prewar 1688 smoking ( no smoke unit, just motor)

Craig McOGR Forum Member

Hello, new to the forum and until a few months ago completely new to old Lionel trains. Have learned a ton and had great fun servicing and getting running old locos thanks to info from all of you!

I have recently acquired a 1688 and tender for tinkering that the seller stated did not run.

After servicing and cleaning actually runs quite well but after running just a few minutes pulling tender and 3 cars it is running hot enough for a small amount of smoke to be coming off the loco.

This loco has no e-unit and it has been rewired (not by me)

see attached pics, I have done the following

Cleaned commutator, brushes etc, oiled, lubed etc, everything moves well, very little resistance
cleaned wheels

I don’t have new brushes for it would that be the best first step or is there something obvious that I am missing as a total newbie to this?

Thanks for your help.
Craig

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10/15/213:17 PM

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