Tr4aJim Posted November 24, 2019 Report Share Posted November 24, 2019 (edited) Folks, My Tr4a came with some aftermarket starter solenoid, so I just bought a “push button” style solenoid from TRF to replace it. However I wanted to make sure I wire it up correctly, as the after market one I removed had different connectors. I have attached a picture of the new solenoid. On the new solenoid there are two large copper lugs at 9 and 3 o’clock, with additional blade connectors on the 9 o’clock one. There is also a small lug at 6 o’clock (barely visible in the picture). Is the following the correct way to wire it? - Copper 9 o’clock lug with blade connectors - positive cable from battery, wire from ammeter, wire from horn relay - Small 6 o’clock lug - wire from ignition switch - Copper 3 o’clock lug - cable to starter Is this correct? BTW - my car has an alternator, so when I installed it, I used the Moss US rewiring diagrams to bypass the stock voltage regulator.https://mossmotors.com/media/instructions/130-058_inst.pdf Thanks Jim Edited November 24, 2019 by Tr4aJim Quote Link to post Share on other sites
RogerH Posted November 24, 2019 Report Share Posted November 24, 2019 Hi Jim, the body of the solenoid should be earthed. The small lug takes the White/Red wire from the ignition switch (starter position) Roger Quote Link to post Share on other sites
Tr4aJim Posted November 24, 2019 Author Report Share Posted November 24, 2019 Thanks Roger. What about the copper lugs? It seems logical that the one at 3 o’clock would go to the starter, and the other three wires go to the one at 9 o’clock. But my “logic” has burned me before! Jim Quote Link to post Share on other sites
RobH Posted November 24, 2019 Report Share Posted November 24, 2019 Yes Jim. As you say. Battery connected to the one at 9 o'clock, starter to the one at 3. Quote Link to post Share on other sites
Tr4aJim Posted November 25, 2019 Author Report Share Posted November 25, 2019 Great, thanks! Quote Link to post Share on other sites
qkingston Posted September 26, 2021 Report Share Posted September 26, 2021 I'm just reviving this topic for clarification from some of you electrical gurus as I wire up the 4a from restoration. So I have a Powerlite Starter fitted (Model RAC 102), a new Autosparks loom modified for alternator fitting (no Control Box) and a new Lucas push button starter solenoid. If I understand both the Powerlite instructions and the comments on this thread, my wiring should be as follows: The loom has 4 brown wires (2 paired up on a ring terminal) and a R/W wire at the solenoid position Battery power cable to the 9 o'clock stud on the solenoid along with the twin brown wires which go to the alternator Thick single brown wire (ignition switch) on the large spade terminal 4th brown wire to the smaller spade at the 9 o'clock terminal (not 100% sure what this is for yet, possibly voltmeter/horn relay) Red/White wire (trigger wire) to the smaller spade terminal at 6 o'clock (ignition switch) Power cable to starter motor to the stud terminal at 3 o'clock Link wire on starter motor remains in place Appreciate your advice Best Regards David Quote Link to post Share on other sites
RobH Posted September 26, 2021 Report Share Posted September 26, 2021 That all sounds correct David. ( I assume since you mention a voltmeter, that you don't have an ammeter fitted). Quote Link to post Share on other sites
qkingston Posted September 26, 2021 Report Share Posted September 26, 2021 Thanks Rob, yes that's correct Quote Link to post Share on other sites
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