Tom,
The condition you describe happened to me when I was putting CF38690
back together after an engine rebuild. My problem was that the wires
were incorrectly connected to the oil pressure switch. Note that the
switch has the terminals labeled *p*, *s* and *i*. Make sure the ground,
or black wire is connected to the *p* terminal. The white/purple wire
should go to the *i* terminal and the white brown wire goes to the *s*
terminal. That should do it. At least it fixed my problem, which was
exactly as you described, except that my anti-run on switch is still in
place.
Hope this helps,
Jim Davis
Fortson, GA
CF38690UO
CF37325U
TomRJade@aol.com wrote:
>
> Help!
> I am having trouble with the oil pressure light/switch (three prong type) on
> my 74. I have spent at least three hours trying everything to remedy the non
> lighted oil pressure light, to no avail. The wire harness in the car is new,
> the pressure switch is new and tested ok, everything else in the car works
> correctly. So here is the question. Since I no longer have the anti run on
> valve Item 80 on page 17 of the Bentley book installed, I have no power to
> the oil pressure switch. Simple solution right? Just jump the Brown/red wire
> to the white/purple wire directly and I should get power at the oil pressure
> switch through the white/purple wire, when the ignition is on. Instead I
> only get power when the ignition is turn all the way off ??? When I take the
> key out of the ignition the oil light stays on! After looking at the wire
> schem. on Pg 17 is power to come to the oil light from the WP wire or through
> the brake failure switch the BP wire?
> Also #76 the brake warning light is lite constantly.
> Anyone?
> TXR -74
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