Quote:
Originally Posted by CajunSpike
...The oil pressure switch is just the standard can type single contact switch
connected to a variable pressure gauge.
Would you need a different type of sending unit to do this?
This is whats installed currently.
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An oil pressure sender produces a variable resistance, proportional to the oil pressure. This appears to be what you have.
An oil pressure switch, hooked to an "idiot light", is normally closed and
opens a contact to ground when the oil pressure stays above a certain threshold. This is
not what you want.
An oil pressure safety switch is normally open, and
closes a pair of contacts when the oil pressure stays above a certain threshold. There is no electrical connection to ground. This is what you want. It should be wired in series with the fuel pump.
edit:
Peter types faster than I do! :0