Hour Meter

[John Pasinski]

Originally Posted by Mike C

The point of wiring it like he says is if the "ign" is on, the Hobbs meter won't be counting hours if the engine is not actually running. The oil pressure ground activates the meter. Otherwise sitting with the key on could cause the meter to run.

Can I just splice into the RUN line on the ignition switch, and simply ground to the dash?

[MARKDTN]

Originally Posted by John Pasinski

Can I just splice into the RUN line on the ignition switch, and simply ground to the dash?

"run" is power to the coil. If you do that and turn the key on for the radio with engine off you will still be racking up hours.

Yes, you can ground this to the dash with no problems.

I would just change it once a year or 5000 miles whichever comes first.