Vacuum Switch

[jM20]

Help again!

Well I was installing a new heading indicator and accidentally knocked the wires off the back of the vacuum switch connect to the heading indicator. 
I have a big contradiction. The yellow mark is for low vacuum. There seems to be a black mark next to another screw port.
However, the appearance of the black mark contradicts the drawing from Sigma-Tek attached. Anybody have this on their 60's M20C and can check?

Thanks in advance!

Regards,

J

 

22-1280-04.pdf

Edited October 2, 2017 by jM20

[Guitarmaster]

It's just like the schematic shows. Yellow is low vac, black is high vac and white is 12 volt positive.
It looks like the cars have worn off a little bit but you can definitely see the remainder of a black dot on the top right of your picture and a little smidgen of white on the bottom

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[jM20]

According to the schematic if you can see the pdf, the black is on the wrong one.....

Edited October 2, 2017 by jM20

[Guitarmaster]

I see what you are looking at now. . Here is mine if it helps.


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[jM20]

Thanks for the clear photos!

[Guitarmaster]

Thanks for the clear photos!

You're welcome. Hope it helped!

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[carusoam]

The power of MS is pretty strong today..!

great photos, Matt.

Nicely defined challenge, JM20.

Best regards,

-a-

[jM20]

Follow up.  Well I finally got everything put back together.

It turns out that the black mark you can kind of see is the Low Vac. The yellow is High Vac.

The non colored is the Power.  I was a little surprised the yellow was wrong...