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TD generator brushes

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TD generator brushes #1
Robert H Robert Harvey Wichita, KS, USA Sign in to contact 1951 MG TD "Millicent Grace (Millie)"	Topic Creator (OP) Jul 29, 2015 08:46 PM Joined 10 years ago 773 Posts

I put new generator brushes in the TD a few days ago, and the generator seems to be working fine. But, I was reading thru the Lucas Technical training manual, and it said that when you install new brushes, you should put "glass cloth" between the comutator and the brushes, and rotate the armature for a while to shape the brushes to the commutator. Should this be done? I never heard of doing this before. ?? The workshop manual claims that the new brushes are "...preformed, so no bedding to the commutator is necessary." (pg N.6) Of course they were talking about OEM brushes. Any thoughts?

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Re: TD generator brushes #2
ddubois Dave DuBois (RIP) Bremerton, WA, USA Sign in to contact	Jul 29, 2015 10:07 PM Joined 18 years ago 7,282 Posts

I have never done that step in rebuilding the generators and have never had any problems. Keep in mind the time frame that information was printed. My bet is if you went to any auto electric shop (if you can find one now days), they would that they never bothered with that step.
Cheers,

Dave DuBois
1953 MGTD
1966 MGB
http://homepages.donobi.net/sufuelpumps/

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Re: TD generator brushes #3
Sarastro Steve Maas Long Beach, CA, USA Sign in to contact 1952 MG TD 1966 Triumph TR4A	Jul 31, 2015 10:03 PM Top Contributor Joined 11 years ago 274 Posts

Believe me, the brushes will wear and conform to the commutator surface very quickly. There's no need to do anything special, even if the brushes have flat ends.

This is one thing you don't need to worry about. Drive your car and enjoy it!

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