Don't mean to hijack this thread since this relates to eletrical sender ... but
I have a similar problem using a mechanical 2-5/8" SW gauage and Canton 9qt
oil pan on SB 347. Big thread fitting of mechanical sensor fits on left side of pan, probably 2" up from bottom of pan. Zero readings. Sensor will not fit
oil plug threads at front of pan. (gauage did move off the bottom once or twice - but usually zero)
Thinking of putting new bung at back of pan or using an
oil filter sandwitch to get a more accurate reading. Anyone use a sandwitch and temp sensor without adding an oil cooler or remote oil filter? Seems like a big expense to get the oil temp gauage to work. (did that on my other cobra using Earl remote, temp block, etc)
Not worried about the oil temp as the engine runs at 180-190, even in heavy traffic and I don't track the car. just bugs me.