No Charge?
Racer
Joined: Feb 2010
Posts: 366
Likes: 57
From: south wilmington il.
Melting Slicks
Joined: Nov 2016
Posts: 2,196
Likes: 3,022
From: So Cal
2023 C4 of the Year Finalist - Unmodified
The output terminal and wire have experienced overheating from a 'bad' (resistive) connection. The black insulator in the case appears to be melted and distorted, the internal stud may be contacting the case, thus a direct short. The 91 alternator output is a direct wire to the junction behind the battery with a dedicated fuse link. Check that link, if it has blown, the alternator is shorted.
Is the alternator in the picture a "one wire" alternator? If = YES, and it needs to be replaced, I would suggest returning to the conventional CS130 that has a charge indicator light output, turns on with the ignition, and utilizes remote sensing. The last feature is the important one. A one wire senses at the output rather than at the battery junction. The system voltage is lower with a one wire than with the OEM remote sense strategy.
Is the alternator in the picture a "one wire" alternator? If = YES, and it needs to be replaced, I would suggest returning to the conventional CS130 that has a charge indicator light output, turns on with the ignition, and utilizes remote sensing. The last feature is the important one. A one wire senses at the output rather than at the battery junction. The system voltage is lower with a one wire than with the OEM remote sense strategy.
