Okay, now I’m going to access your collectoive knowledge and experience.
My alternator is whirring, confirmed by me with a mechanic’s stethescope. So I’ve ordered one and will change it.
Typical protocol is to disconnect the battery + lead (using the backup 12VDC bit to retain the memories).
But last night I was wandering through my circuitry schematics (light reading…I was actually preparing to install fog lights) and I looked at the alternator circuits (attached). As can be seen, the system is negatively grounded, and the solenoid to the IG1 relay, which enables the positive circuit to the alternator, is no energized when the ignition cylinder (key) is OFF. The circuit to the IG2 10A fuse is also routed through the ignitions switch. The positive circuits go through the ignition switch (one), to the battery positive plate (two) and through the contacts of the IG1 relay. Three of the positicve circuits disconnect by unplugging the 3-pin plug, the others aren’t enabled with the key OFF.
Whi made me wonder. If I unplug the plug on the side of the alternator, all positive-side circuits open. At that point, only the case ground is connected. It seems to me that by unplugging the alternator, it should be perfectly safe to dismount and remove the alternator even withe the battery fully connected to keep my memories alive.
Gentlemen, any comments?