ronhatch Posted June 27, 2019 Report Share Posted June 27, 2019 Hi all, I have converted my tr4 to an alternator and I have used the appropriate plug in wiring. I now have 2 wires, a large yellow and brown and a small green and brown redundant, do I just tape these up or can they be used for something else ? Regards Ron Quote Link to post Share on other sites
Lebro Posted June 27, 2019 Report Share Posted June 27, 2019 What was "The appropriate plug in wiring" exactly, where does connect to on the car. Bob. Quote Link to post Share on other sites
RogerH Posted June 27, 2019 Report Share Posted June 27, 2019 Hi Ron, have you got a decent wiring diagram for both the unmodified TR4 dynamo and the Alternator version (TR6 etc) NY - brown/ yellow goes from the Alt to the ignition light It looks like the NG is the unregulated dynamo going into the Control box ------ and then coming out as the NW brown/white (regulated) to the ammeter/battery. So connect the NW and NG (I think) http://www.advanceautowire.com/tr24a.pdf http://www.advanceautowire.com/tr2506.pdf Roger Quote Link to post Share on other sites
RobH Posted June 27, 2019 Report Share Posted June 27, 2019 I think the two 'spare' wires you are referring to are those which run from the control box to the dynamo. What you do with them now rather depends on what you did with the control box itself. They play no part with an alternator and probably should be taped up in case you ever want to revert, but it's a good idea to disconnect them at both ends. The dynamo control box should not be connected any more if intact, though some use it without innards as a convenient interconnection point for the new alternator wiring. Quote Link to post Share on other sites
ronhatch Posted June 28, 2019 Author Report Share Posted June 28, 2019 Hi all , thanks for the replies, The plug in has a alternator plug on one end with a large and a small brown wire and a small yellow and brown, at the other end the 2 browns are connected to a copper washer and I have connected these to the battery side of the solenoid, the small yellow and brown I have connected to the small yellow and brown by the old control box. I have used the control box as a cable junction as per diagrams posted on this site. I did assume that the 2 "spare" wires were for the old alternator just by their location on the new loom (I didn't take the car apart ) I do have a wiring diagram for the TR4 and TR4a Rodger, but from your post it seems I will get some more info from the TR6 diagram. I will obtain one asap. Once again, thanks for the replies always a great help Regards Quote Link to post Share on other sites
Lebro Posted June 28, 2019 Report Share Posted June 28, 2019 (edited) The way you have wired it your ammeter will never show any charge - only discharge. The two brown wires from the alternator would ideally connect to the non battery side of the ammeter, i.e. onto the brown / white wire formerly on the "A" terminal of the old regulator, and also to the Brown / Blue wire formerly on the "A1" terminal of the regulator. The thin brown / yellow wire from the alternator should connect to the thin brown / yellow wire formerly on "D" of the regulator. The old thick brown / yellow & thin brown / green wires can be taped off, or cut back. Bob. Edited June 28, 2019 by Lebro Quote Link to post Share on other sites
ianc Posted June 28, 2019 Report Share Posted June 28, 2019 Have a look at my article in Section J4 of the Technicalities CD, and the article which James Christie and I published in TR Action 248 (March 2011). If you don't have access to these articles, send me a PM giving me your personal email, and I'll send you MS Word versions. Ian Cornish Quote Link to post Share on other sites
ronhatch Posted June 28, 2019 Author Report Share Posted June 28, 2019 Hi Bob, Thanks for the info, I wondered why the ammeter wouldn't work ! Cheers Ron Quote Link to post Share on other sites
ronhatch Posted June 28, 2019 Author Report Share Posted June 28, 2019 Hi Ian, I have found your article Cheers Ron Quote Link to post Share on other sites
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