S5 alternator in '79 SA
#1
S5 alternator in '79 SA
I'm still working this out but the car runs off it right now. After removing the external voltage regulator, I followed the archive nfo and wired jumpers in as so.
The red represents the jumpers.
Then I wired the Alternator up running the 'L' terminal into the White/Black wire and the 'S' Terminal directly to the battery on a 5amp fused wire. I just bolted the original B terminal wire to the b post on the alternator after swapping the hardware off the stock alt's B terminal.
Now, the only issue is the Voltage gauge does not function with the key in the 'ON' position. What step did I miss to cause this?
The red represents the jumpers.
Then I wired the Alternator up running the 'L' terminal into the White/Black wire and the 'S' Terminal directly to the battery on a 5amp fused wire. I just bolted the original B terminal wire to the b post on the alternator after swapping the hardware off the stock alt's B terminal.
Now, the only issue is the Voltage gauge does not function with the key in the 'ON' position. What step did I miss to cause this?
#4
Senior Member
was my drawings not clear enough in my previous post to your thread ?
https://www.rx7club.com/1st-generation-specific-1979-1985-18/where-volt-regulator-581072/
https://www.rx7club.com/1st-generation-specific-1979-1985-18/where-volt-regulator-581072/
#5
well, they helped, but the plug that went to the laternator only had 2 wires on it instead of 4 on this car. Just the white/black and black/white. I'll just have to keep trying at this and study your drawngs some more. They did help though. I notcied the wires are hacked up a bit in places. the previous owner must have done some stuff. This will make it nmore difficult....
For some reason I'm having great trouble working on this SA than I did on my FD or FC. and on seemingly easier thiings!! maybe some caffiene will help....My problem is at the voltage regulator plug. I had no trouble wiring the S5 alt as I had put an FD alt into my S4 2 years ago. so that was easy enough.
I found the 1 and 2 wires on the bug harness, but what am I supposed to do with them? I thought the jumpers need only be placed on the voltage regulator plug.
well, I'll figure this out eventually! Sorry if I ask for alot of hand-holding through all this! BTW, the SA looks much more similair to the FD. The FC looks the least related of all three gens. I'd suspected this, but when I parked them all by each other it was eveident.
For some reason I'm having great trouble working on this SA than I did on my FD or FC. and on seemingly easier thiings!! maybe some caffiene will help....My problem is at the voltage regulator plug. I had no trouble wiring the S5 alt as I had put an FD alt into my S4 2 years ago. so that was easy enough.
I found the 1 and 2 wires on the bug harness, but what am I supposed to do with them? I thought the jumpers need only be placed on the voltage regulator plug.
well, I'll figure this out eventually! Sorry if I ask for alot of hand-holding through all this! BTW, the SA looks much more similair to the FD. The FC looks the least related of all three gens. I'd suspected this, but when I parked them all by each other it was eveident.
Last edited by Enthu; 09-27-06 at 04:50 AM.
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