How I Spent My Summer Vacation

And for years, I’ve been without a working heater in Faulkner. Time to address that; I had installed a new heater valve, although the cable is not hooked up yet. And, I had two vacuum switches rebuilt, but were still sitting in the box.


I found the blower motor connector tucked behind the vent. This goes to the vacuum switch


But very little else about the wiring made sense…


…certainly, things were not connected as shown in the shop manual

I determined that the power to the blower came not from the ignition switch, but from a spare tab on the temperature gauge (which in turn received power from the ignition switch). This wire was missing, so I made one.

On my original vacuum switch, the tubes were just plugged onto the nipples; fortunately, I have spare heater parts, and the plug that connects all the tubes at once to the nipples. When I finish the job, that will go on.



I was able to remove all the buttons except for the bottom V(ent) through the face of the dash, but the lip of V caught on the dash. This will have to come out with the switch


I was able to twirl a 1/4" socket on the top and bottom screws into the vacuum switch plastic, that holds it to the bracket


…and the switch is out! The rebuilt one went back in the same way

I guess I got the wiring right! The two speed blower works perfectly

Things to do:

  1. Test all the vacuum motors, using the siphon transfer pump discussed in this thread. Unfortunately, the YouTube video on how to test them has disappeared, but I think I can figure it out. I have spare pots if any of them are non-functional.
  2. Install the vacuum tube plug, and connect to the right vacuum motors (on the right side! :astonished: ).
  3. Run the vacuum line to the manifold.
  4. Wire up the cable to the heater valve.

Thassit!