• The Roadster Factory Recovery Fund - Friends, as you may have heard, The Roadster Factory, a respected British Car Parts business in PA, suffered a total loss in a fire on Christmas Day. Read about it, discuss or ask questions >> HERE. The Triumph Register of America is sponsoring a fund raiser to help TRF get back on their feet. If you can help, vist >> their GoFundMe page.
  • Hey there Guest!
    If you enjoy BCF and find our forum a useful resource, if you appreciate not having ads pop up all over the place and you want to ensure we can stay online - Please consider supporting with an "optional" low-cost annual subscription.
    **Upgrade Now**
    (PS: Subscribers don't see this UGLY banner)
Tips
Tips

Spitfire alternator wiring question

nightrunner68667

Freshman Member
Offline
My starter solenoid has a brown wire on both sides, I am thinking that both brown wires should be on the battery side????? is that correct??

also the car has an aftermarket alternator with the big brown wire on the post marked "batt" where do the small brown wire and the brown with yellow tracer go on this alternator???

Thanks for the help!!!!![SUB][SUB][SUB]!!!![/SUB][/SUB][/SUB]
 

Attachments

  • triumph wiring.jpg
    triumph wiring.jpg
    36.6 KB · Views: 77
  • triumph wiring1.jpg
    triumph wiring1.jpg
    49.4 KB · Views: 81

dklawson

Yoda
Offline
Brown Wires:
You are correct. All the brown wires (large and small) should be on the battery cable side of the starter solenoid.

Alternator:
That looks like a GM alternator. The large brown wire shown on the alternator should go to the battery cable terminal on the solenoid (where all the other brown wires are).
The old Lucas alternator plug will have two or more wires in it. (Depending on the year of your car a which alternator was used). Look carefully at the old plug. There will be a large brown wire in the plug. It should go the threaded post on your GM alternator where your existing brown wire is. (Use both big wires (the one on the alternator now and the one in the old Lucas plug) The GM alternator puts out more current than the old Lucas.
Note the two little spade lugs on the GM alternator... one will be labeled "1" and the other "2".
Go the the parts store and buy the GM alternator plug... they are cheap and readily available.
The wire that goes on the "2" terminal goes to the threaded post on the alternator where the brown wires go.
(It is a "sense" wire).
The wire from the "1" terminal will connect to the small brown/yellow wire in the Lucas alternator plug (for the warning light).
 
Similar threads
Thread starter Title Forum Replies Date
K TR2/3/3A British Wiring alternator conversion kit question. Triumph 3
BoyRacer Wiring question for alternator conversion Austin Healey 3
T TR2/3/3A Question on wiring Denso alternator through ammeter Triumph 4
bash Alternator wiring question Triumph 5
E BE Alternator Wiring Question Spridgets 5
T TR4/4A TR4A alternator conversion wiring question Triumph 28
Webb Quick Alternator Wiring Question Triumph 3
LastDeadLast Bosch Alternator Wiring Question Triumph 1
F TR2/3/3A I'm stuck... alternator/wiring/starting/? Triumph 2
apbos Positive Ground Alternator wiring. Spridgets 9
G TR2/3/3A Wiring ammeter with the British Wiring alternator conversion. Triumph 13
D TR2/3/3A Alternator wiring diagram Triumph 7
M wiring of alternator Austin Healey 3
K TR2/3/3A Triumph Rescue/British Wiring Alternator Kit Triumph 10
K TR2/3/3A Alternator from British Wiring Triumph 12
mgedit TR2/3/3A Alternator Wiring for TR3 Triumph 18
Lukens TR2/3/3A Help wiring convertion alternator Triumph 6
B TR6 Does a 75 amp alternator require a wiring upgrade of any kind? Triumph 3
D MGB mgb 77 alternator wiring. MG 2
Patrick67BJ8 Alternator Conversion & Regulator Wiring Help Need Austin Healey 11
H TR4/4A tr4 alternator wiring Triumph 4
I Alternator wiring Austin Healey 5
tweety Alternator wiring connector, Sources? Spridgets 4
G MGB Alternator wiring "71 MGB MG 4
bill_powell Alternator Conversion / Wiring Spridgets 13
kodanja Alternator upgrade wiring? Triumph 30
kyreb1862 MGB 77 MGB Alternator Wiring MG 4
B TR6 71 TR6 Alternator Wiring Triumph 2
Airfix TR6 TR6 alternator wiring? Triumph 5
D Alternator Wiring MG 7
C Wiring Check. Alternator wiring. MG 19
I MGB Alternator help MG 0
P Alternator Installation Pic Austin Healey 4
P Generator to Alternator Swap Austin Healey 2
W Generator or Alternator? Austin Healey 18
Writer2022 GT6 GT6 MK3 Alternator Problem Triumph 4
K TR2/3/3A Is it time for a new alternator??? Triumph 8
M Smog pump and alternator brackets Spridgets 0
V MGB Never occurred to me that my '66 would be positive ground. Does the presence of an alternator show that it's been converted? MG 22
A General MG 78 MG MIDGET ALTERNATOR SMOKES MG 5
E MGB external alternator regulator MG 2
DrEntropy MGB Generator to alternator swap MG 1
M TR2/3/3A Generator Warning Light on with the Alternator Charging the Battery Triumph 4
K TR2/3/3A Overtightening the alternator belt? Triumph 14
B TR6 Swapped Lucas to GM alternator Triumph 9
M TR6 Alternator Issue for 72 TR6 Triumph 7
K TR2/3/3A Can anyone confirm that if you replace the ammeter with a voltmeter ( generator removed and alternator added) that you...... Triumph 5
K TR2/3/3A Red ignition light stays on...car has alternator not generator. Triumph 17
K TR2/3/3A TR3 with alternator conversion... red light stays on and low voltage on the voltmeter gauge? Triumph 1
G Spitfire Alternator troubles Triumph 2

Similar threads

Top