My new to me Series 1.5 has arrived. I’ve spent a lot of time over the past couple of weeks reading many many postings, studying electrical schematics, etc. I thought I had a reasonable understanding of the electrical circuits and the many changes that can be made to upgrade them. Unfortunately, the car has had some electrical modifications done to it and many of the wires don’t match the schematics I have. Hopefully, you can help.
There’s a red and a blue wire that’s coming from the front of the car. The blue wire is disconnected. The red wire is attached to a Hella 003-510-33 relay that’s hanging loose. On the relay the red wire is on the same terminal as a pink wire. On the other terminal there’s a pink wire that runs under what I think is the heater control box and it joins to the battery positive cable. In that same area is a black box that says alternator controls and what appears to be a flasher. The positive battery cable has some broken strands so I’ll be replacing it. Any idea what this relay is doing?
There are 2 relays mounted over one another on the drivers’ side on the splash panel that’s behind the rear wheel. The top relay is only attached by one screw and is easy to move around. On this relay there’s a heavier gauge red wire, a what I’ll describe as a white covered black or brown wire, a red/green wire and a ground wire attached to the single mounting bolt. The wires appear to run toward the front of the car.
The 2nd bottom relay has 3 terminals on it and some of the wires are too dirty to tell what colors they are. I’ll have to remove the top relay to be able to clean the wires. The wires appear to run into the cabin area. There’s a black wire on one terminal, a yellow or white covered wired on another terminal and what appears to be 3 white coated wires on the last terminal.
Can someone identify these two relays for me are for?
The radiator fan is aftermarket and turns on with the key. I know it’s possible that the Otter switch has been bypassed and I’ll do some additional searching.
There’s a relay mounted between the fan and the engine on the upper cross member attached with what look like an original L bracket. I haven’t yet been able to determine the color of the wires attached to it. Based solely on the location, does anyone know what this relay does?
The Lucas alternator has some low quality after market connectors on it. I’m planning on replacing it with a Delco 10SI 3 wire alternator. I haven’t been able to find a new one so I guess Delco isn’t making them any longer. My choices seem to be a new clone or a reconditioned Delco. Any recommendations on what to buy?
Thanks for your help.