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TR6 Local source for TR6 3-prong oil switch ?

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<div class="ubbcode-block"><div class="ubbcode-header">Quote:]As RomanH noted, you can easily check the valve operation. But you can see how there should be no circumstance where the valve can operate when the ignition key is in Run. Unless the ignition switch is faulty or wired wrong, there will be no power to the valve unless the ignition is 'off'. [/QUOTE]

The problem occurred when the key was shut off, it would "click" and cause the battery to drain. It actually made a humming or vibrating noise when this happened. I found this out when I hooked up the charger to dead battery with the key off.
 
Brosky said:
The problem occurred when the key was shut off, it would "click" and cause the battery to drain. It actually made a humming or vibrating noise when this happened. I found this out when I hooked up the charger to dead battery with the key off.
Click to expand...

It sounds as if you have the white/brown wire switched with the white/purple wire at the O/P. The colors are too similar and after 30+ years of ageing they become very difficult to differentiate.
I just checked the function of the O/P switch (mine is not back in my car), all you need to do this is a multi meter and a small rod to insert in the opening of the O/P switch to simulate oil pressure, this is what I found.
No oil pressure makes a circuit between the P and S terminals on the switch. This operates the oil light on the dash. During this condition there is no contact between P and I.
When oil pressure is applied there is a circuit between the terminals marked P and I and no circuit between P and S. This is the connection needed for the anti run on valve.
When the key is turned to the off position power is applied to the A/R valve which then flows through the O/P switch to ground. When the oil pressure dissipates the O/P switch opens and turns the A/R valve off.
 

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All of this great info is not going to waste. It's supposed to be near 60 by Saturday, so I hope to get to check the wiring out at that time.

Thanks, to all!!
 
Brosky said:
All of this great info is not going to waste. Thanks, to all!!
Click to expand...
I agree! I'm going to wire mine this weekend, so thanks, all, for the timely updates!
 
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