Originally Posted by
mpwdhc
there seems to be interference with engine ground, and the wave matches the shape of that of the alternator. it is unclear as to whether this is a red herring or not, but i'm going to try shielding some wiring before next visit. or is this normal?
In case its of any use, my 85 RRC had a very small voltage difference (around 0.5V) between the alternator case and the block on light electrical load which was traced to the alternator's belt tension stay's engine mount bolt not sufficiently tight. I was looking for the cause of fluctuating voltages particularly noticeable at night when stopped with blinkers on which was resolved by properly tightening the bolt.
MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
VK2HFG and APRS W1 digi
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