DatCon Hour Meter

[Triskele]

Port engine hour meter is not working. I think it runs off a pressure switch connected to the fuel line. Can someone tell me what the switch looks like? Is it the gold colored switch in the photo? Is there a way to test it?

[Captain Ralph]

I would SWAG the switch on the left, not the gold one. Looks like the one in the middle is oil pressure (with gauge).
B+ (battery voltage positive) on one side of the switch, B+ on both sides of the switch when running.
You can check B+ at the hour meter when running.

I recall a fuse in the power box also.

[wtmarq]

Don’t rule out the pressure switch on the secondary fuel filter.

[Captain Ralph]

Don’t rule out the pressure switch on the secondary fuel filter.

That is the secondary (spin-on) fuel filter in the picture.

[osprey]

If I where to guess I would say it is the switch closest to the filter with three wire, one power, the other two wires go to the hour meter and the other goes to your monitor panel at bridge. Good Luck. P