Okay, sorry for the long delay.
The problem was two-fold: bad diodes and bad regulator.
The alternator was draining [shorting] to ground at an equivalent of a ~1.5amp draw. As my 1amp trickle charger couldn't keep up over night it was sucking the battery down.
Additionally, the regulator was not regulating.. so under charging at low rpm [discharging] and overcharging at high rpm [16.5v at 4000rpm].
Luckily my 14cux is still alive!
Thanks to everyone for the angles!
I picked up a used alternator (with good diodes and bearing) with a bad regulator and popped in a new regulator and all is well. It runs up to 14.5v at ~2300rpm and stays above 12.6 at idle.
One other todo:
My shortened belt is a little loose, so I need to get a slightly shorter one.. I think its causing slippage when the alternator is heavily loaded [see: https://discoweb.org/index.php?thre...draulic-power-steering-conversion-done.101124 ]
The problem was two-fold: bad diodes and bad regulator.
The alternator was draining [shorting] to ground at an equivalent of a ~1.5amp draw. As my 1amp trickle charger couldn't keep up over night it was sucking the battery down.
Additionally, the regulator was not regulating.. so under charging at low rpm [discharging] and overcharging at high rpm [16.5v at 4000rpm].
Luckily my 14cux is still alive!
Thanks to everyone for the angles!
I picked up a used alternator (with good diodes and bearing) with a bad regulator and popped in a new regulator and all is well. It runs up to 14.5v at ~2300rpm and stays above 12.6 at idle.
One other todo:
My shortened belt is a little loose, so I need to get a slightly shorter one.. I think its causing slippage when the alternator is heavily loaded [see: https://discoweb.org/index.php?thre...draulic-power-steering-conversion-done.101124 ]