[GreenKeys] Model 14 TD distributor rings

[Ralph Mowery]

>From what I read the copper and carbon from the brushes mix together and
sort of make like a case hardening. 
 It should not be cleaned except for the normal oil and dust. 

 I don't know if you can even get any carbon tetrachloride any more.  Seems
that I read that if you were around much of it and drank alcohol it could
cause kidney failure.   

If I wanted to clean the dust and oil off of the ring segments I would use
some 90% or better alcohol or electrical contact cleaner.  

Ralph ku4pt


-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of John, W9DDD
Sent: Thursday, June 17, 2021 1:37 PM
To: Green Keys
Subject: [GreenKeys] Model 14 TD distributor rings

Best way to clean copper distributor ring segments?

TM 11-2222 says carbon tetrachloride.  I'm not sure you can even buy 
that anymore.  I can remember in my youth that it was some pretty nasty 
stuff, but it worked great for cleaning.

I seem to recall hearing a suggestion of using a pink pearl eraser, is 
that effective and/or OK?  Maybe depends on what's stuck to the copper 
rings?