[TR] Vestigal Brown Wire?

Keith Stewart keithstewart at bell.net
Thu Jul 12 19:17:21 MDT 2018

Wait another 20 years. Your memory will begin to fade and then it won’t bother you any more 😊


Keith Stewart

keithstewart at bell.net




From: Tom Walling <pdqtr6 at comcast.net> 
Sent: July 11, 2018 6:37 PM
To: Triumphs <triumphs at autox.team.net>
Subject: [TR] Vestigal Brown Wire?


Quick question... I have a '73 TR6 with a 3 wire plug connection alternator (Lucas 18ACR). I have recently discovered a mystery wire flopping around in the general vicinity of the alternator. I never noticed it before partly because it was covered in baked-on grunge, and partly because it is fairly short after leaving the wiring loom tape. I suspect it may be the "voltage sensing line" (Book of Masters, Chapter 13, page 54) and it has no function with a 3 wire alternator, however, there is an opening in the rear cover that is just the right size for the connector to go in, and a terminal spade inside. I have run the car this way for at least 20 years without any noticeable problems, but I does bother me that I have this unused brown wire.




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