Now that I've got my cylinder head back after valve job and replacement valve, I figured I should fix the dead oil pressure guage while I'm putting things back together.
It worked fine until a catastrophic electrical "event" a couple months ago. A garage put my radiator back in such a way that it eventually rubbed or melted it's way through a wiring harness, and shorted 12V to just about everything. After replacing the vaporized 18" section of the harness, a handfull of fuses and bulbs, and paying the owner of the car parked in front of mine at the time to get her broken license plate holder fixed, the OPG is the only thing left not working. (Yes, "everything" included the starter motor - it was quite an event. <img border="0" title="" alt="[Eek!]" src="images/icons/shocked.gif" /> )
So at the time I checked for voltage at the guage connector, and I think there was about 1-2V. I connected a 6V lantern battery to the guage and it moved all the way to the right. Both of those would make me think it should work, yet it doesn't move at all. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" /> Does anyone know what voltage corresponds to what pressure? I don't want to go spend $70 or whatever it is for a new sending unit and then end up finding out I really needed the guage cluster, or vice versa. Anyone got any hints to better my chances of replacing the right part first?
Thanks,
-Ben