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I got an oil pressure gauge from Midwest Military
Posted: Thu Apr 26, 2012 12:00 am
by Deadguy
and it was broken. John said I could return it "once". The one he sent me to replace it is rusty and a bit beaten up, but the spring in it isn't broken. I hooked it up, and when I turn on the ignition, it instantly goes over to 60. I would take it that means it is grounded. I don't know if it's the gauge or the wiring out to the sender. Maybe if I unplugged the wire from the gauge, and say if the gauge was still grounded at the port, or if the wire was, I could place the blame?
Posted: Thu Apr 26, 2012 8:21 am
by skyjeep50
In the "Downloads" section of this website, under "M38 M38A1 M170 M606" you will see the link "Electrical", click that and go to page 2 of that section. There you will find "Military 24V Gauge Trouble Shooting". Go through the steps there to isolate the problem. Then you can take the appropriate measures.
Posted: Thu Apr 26, 2012 7:19 pm
by Cacti_Ken
Have you put a test gauge at the same port you have the sender to determine the actual pressure?
Posted: Thu Apr 26, 2012 10:27 pm
by Deadguy
Yes, I have pressure, and the sender isn't grounded. The gauge terminals, however, are.