Anyone changed a Lucas ACR alternator over to a Nippon denso
Discussion
I am replacing a Lucas ACR alternator over to a Nippon Denso unit.
The Lucas ACR has a three pin Europlug, whereas the Nippon Denso unit has one large projecting pillar terminal (No:3, also marked B+) which secures the wire end via a circular terminal onto the threaded pin with lock nuts.
Terminal 2 on the alternator has a spade terminal connector, which is apparently a switched live wire,
Terminal 1 is another spade terminal connector which is the ignition light wire, which on my car is a relatively small black and white wire.
Is it simply a matter of fixing the heavy duty wire from the Europlug on to the pillar type connection of the Nippon unit, and the wire directly next to the heavy duty terminal in the Europlug to terminal 2 of the Nippon unit, with the thin black white ignition light wire on the Europlug to terminal 1 of the Nippon unit?
Any advice on the above would be very welcome.
The Lucas ACR has a three pin Europlug, whereas the Nippon Denso unit has one large projecting pillar terminal (No:3, also marked B+) which secures the wire end via a circular terminal onto the threaded pin with lock nuts.
Terminal 2 on the alternator has a spade terminal connector, which is apparently a switched live wire,
Terminal 1 is another spade terminal connector which is the ignition light wire, which on my car is a relatively small black and white wire.
Is it simply a matter of fixing the heavy duty wire from the Europlug on to the pillar type connection of the Nippon unit, and the wire directly next to the heavy duty terminal in the Europlug to terminal 2 of the Nippon unit, with the thin black white ignition light wire on the Europlug to terminal 1 of the Nippon unit?
Any advice on the above would be very welcome.
CrutyRammers said:
Agggh...can't remember off the top of my head, though the switched live is unnecessary, it works fine without. If you head over to locostbuilder's forum and search, there are several wiring diagrams of the different denso types.
Thank you very much for your reply. I had already looked at the post in the Locost builders forum and it showed the same wiring diagrams as the one which came with the new Nippon Denso alternator. The issue for me is that if I don't get the wiring exactly right, I might possibly cook some of the components in the new alternator.
The wiring in my case is not helped by the fact that some of the wiring up to the alternator in my car must have been replaced at some time in its past, because the wires leading into the back of the alternator are not the same colour as shown in the cars wiring diagram for the alternator.
It may be that I will have to trace the wires on the car back as far as the connections which were made to the original loom, but I don't know how far I will have to go to get back to the original wires, so would prefer to avoid this option if possible, as I may have to strip back quite a bit of the loom coming away from the alternator.
My next step will be to use the multimeter to try to trace the alternator wires back to source. I will post back to let people know if i manage to get it sorted. Best Regards PPP.
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