This was an old thread I started a few years back but I realized I never finished the solution on here for what I finally did.
System
The system allows the engine to start without the buzzer going off for a few seconds. If on start there is no pressure the buzzer will go off after a few seconds. The time delay can be changed for the buzzer going off at start by changing a resistor for a buck at Radio Shake.
If loss of
oil pressure after start the buzzer goes off right away, and there is no delay.
The system also has a red loss of
oil pressure light on the dash in addition to a regular gauge.
The buzzer can be turned off by a switch.
Components
One additional loss of pressure sender. Idiot light type that grounds with low or loss of pressure.
A delay timer, Amperite # 12D.2-20SST1A
A standard automotive relay.
A buzzer. The louder the better.
A red light for the dash.
A simple toggle switch
I started my engine last summer and the system worked really well. Yes the buzzer can be annoying, that’s why I added the switch to turn it off. I can supply a diagram if anyone is interested.
Wayne
