MEP 803A Wiring Water and Oil Pressure Gauges

[JCamp]

Can someone tell me where I can get the information that will show correct wiring on oil pressure and water temp gauges?

I replaced the gauges, and water temp sending unit, and currently the temp gauge is pegged at max, and the oil pressure reads too low. I may have put the wires back incorrectly when I swapped the gauges out. I have a voltage/ohm meter, but not experienced in this. Is there a ‘Check Wiring for Dummies’ or similar reference? If this info is in a TM, I’d buy it. Any thoughts?

 

[Scoobyshep]

Can someone tell me where I can get the information that will show correct wiring on oil pressure and water temp gages?

I replaced the gages, and water temp sending unit, and the temp gage is pegged at max, and the pressure is too low. I may have put the wires back incorrectly when I swapped the gages out. I have a voltage/ohm meter, but not experienced in this. Is there a ‘Check Wiring for Dummies’ publication or similar website reference? If this info is in a TM, I’d buy it. Any thoughts?

There are TMs on the website here under the tm tab

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[Light in the Dark]

They are also called out on the wiring diagram on the door of the machine.

 

[JCamp]

Thank you. I should’ve known that.

 

[Jeepadict]

Can someone tell me where I can get the information that will show correct wiring on oil pressure and water temp gauges?

I replaced the gauges, and water temp sending unit, and currently the temp gauge is pegged at max, and the oil pressure reads too low. I may have put the wires back incorrectly when I swapped the gauges out. I have a voltage/ohm meter, but not experienced in this. Is there a ‘Check Wiring for Dummies’ or similar reference? If this info is in a TM, I’d buy it. Any thoughts?

Every fiber in my being wants to drop sister-service sibling rilvary jokes thanks to "Check Wiring for Dummies"....

Inside voice repeats: (we don't talk trash on this forum...we don't talk trash on this forum...we don't talk trash on this forum)

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[Guyfang]

We all have done it! We all learned from it! Its good.

 

[Ray70]

When you replaced the gages did you use the exact same style gages?
As an FYI, when switching from the old style gages with the blue housing ( and red cap in the empty bulb hole ) to the newer Faria Beede gages with the white body and twist in back light bulb installed, the wires on the gage go in different locations.
You have to be mindful of the letters marked near the studs and match up the wires accordingly.
Also make sure the mounting straps have the insulators in the mounting holes.

 

[JCamp]

Can someone tell me where I can get the information that will show correct wiring on oil pressure and water temp gauges?

I replaced the gauges, and water temp sending unit, and currently the temp gauge is pegged at max, and the oil pressure reads too low. I may have put the wires back incorrectly when I swapped the gauges out. I have a voltage/ohm meter, but not experienced in this. Is there a ‘Check Wiring for Dummies’ or similar reference? If this info is in a TM, I’d buy it. Any thoughts?

Thanks everyone for your input. With input from here it turned out easier than I thought. The wires on my gen set are marked, but have a lot of extra numbers and letters that seemed confusing. I had a wire on the wrong terminal. Between the posted TMs, the schematic on the door, and ChatGBT I was able to dumb it down so I could sort it out. Next step is to get the temp gauge to read accurately.

 

[Light in the Dark]

...The wires on my gen set are marked, but have a lot of extra numbers and letters that seemed confusing...

As an FYI the last two numbers on any wire denote gauge (example... 106A20, wire ID is 106A, 20 gauge wire).