I did some research online and found a wiring schematic.
Fuel pump oil pressure safety switch.
When oil pressure exists 2 4 psi the p and s terminals are.
This allows the fuel pump to operate and fill the carburetor while the engine is cranking.
Oil pressure safety switch recommended when wiring electric fuel pump.
Find carter oil pressure safety switches a68301.
Terminals p pump and s start are normally closed.
The safety switch is installed in conjunction with the oil pressure switch and if a loss of oil pressure should occur the switch will remove power from the electric fuel pump stalling the engine due to a loss of fuel.
This safety switch can help to save your engine if it losses oil pressure.
Airtex oil pressure safety switch stops electric fuel pump when engine stops to prevent continued fuel delivery through the system in the event of an accident.
Gasket fuel pump safety switches.
Terminals p pump and i ignition are normally open.
I have a few questions on the oil pressure safety switch i terminal where is the best place to get power.
The most common solution to this new problem is to hide a priming button under the dash to bypass the oil pressure switch.
For the electric fuel pump application the relay actuating switch will be a common three prong oil pressure switch that screws into a 1 8 27 npt oil pressure port on the engine.
Find carter oil pressure safety switches a68301 and get free shipping on orders over 99 at summit racing.
Working pressure range is 2 100 psi.
Npt manifold included 6an fittings each.
These switches come with complete instructions and a wiring diagram.
An important safety feature when installing universal fuel pump this switch is designed for use with any universal in line electric fuel pump.
Carter oil pressure safety switches shut down your engine when your oil pressure drops below 7 psi saving your engine from damage.
This safety switch can help to save your engine if it losses oil pressure.
I m installing an electric fuel pump and want to include in my circuit a relay circuit breaker oil pressure safety switch.
The pressure switch is a single pole double throw diaphragm actuated switch.
The solution that most people implement is the oil pressure switch but that didn t allow me to prime the fuel bowls before startup and that was the main reason i had converted to an electric fuel pump.
Oil pressure safety switch 15 psi minimum 1 8 in.