Have searched forums and found a lot of advice about fitting after market oil and temp gauges to land crushers.
But can't find any one showing how its done,
I have a 3B that has just been rebuit due to a mate running it out of oil



I want to fit a red light that will illuminate when oil pressure is below a acceptable level and another that will glow when temp is above normal.
Question. how do I do this



Plain english version please as I am only a mere fencer.
Thanks in advance.
Richard.