Supposedly the engine is rebuilt. Well, whoever did it had crappy vacuum line hygiene and I threw about 25 feet of new shiny rubber in there. Pretty bad hygiene on the sending units, too. But, I'm real bad with instrument clusters and anything electrical other than installing speakers and a radio. I need some help!
When I bought it all the gauges worked except the oil pressure. I've got that, water temp, volts, and fuel. Until today every one except the oil pressure has worked, and reliably. Today when I was warming it up I noticed the oil pressure read 40 psi. My cigarette almost fell out of my mouth and I was a happy fella. Then it went flacid! Yeah, went right back to zero. I also thought my temp wasn't working after that, but I think I did see it move, it could have been gauge paranoia.
So, since the gauge apparently has power going to it, should I assume the sending unit is shot? I don't even know where it is. I have a LG4 305 engine. Last weekend I changed out the oil. The filter was on real tight so I banged around with my filter wrench. I also just had twin pipes run from the manifolds back on my car at a muffler shop. Could any of this work have banged the unit and made the gauge work today for a minute or so?
If it's the unit, what tools do I need and how easy is it?
When I bought it all the gauges worked except the oil pressure. I've got that, water temp, volts, and fuel. Until today every one except the oil pressure has worked, and reliably. Today when I was warming it up I noticed the oil pressure read 40 psi. My cigarette almost fell out of my mouth and I was a happy fella. Then it went flacid! Yeah, went right back to zero. I also thought my temp wasn't working after that, but I think I did see it move, it could have been gauge paranoia.
So, since the gauge apparently has power going to it, should I assume the sending unit is shot? I don't even know where it is. I have a LG4 305 engine. Last weekend I changed out the oil. The filter was on real tight so I banged around with my filter wrench. I also just had twin pipes run from the manifolds back on my car at a muffler shop. Could any of this work have banged the unit and made the gauge work today for a minute or so?
If it's the unit, what tools do I need and how easy is it?