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I took my 1932 DE project car for a drive for the first time today.  A big day after 22 months of work.  It operates well, though there is a metal-on-metal squeaking from the brushes on the commutator.  A little WD40 on the commutator solves the problem briefly, so I know that is the origin; not the bearings or brake drum.   My questions for other electric owners are:  Is this normal?  Should I lube the commutator?  With what?  Will it go away with use (I think car had been sitting unused for quite a few years)?

 

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I cleaned the commutator and brush faces with solvent, and the squeal has largely gone away.  Probably just some surface residue from sitting for a long time.

 

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