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Rear defroster knob replacement
#1
I've posted several questions about the rear defroster switch here and received some great advice. Don suggested replacing the knob with one from a convertible top switch. It can be done. I posted a video on YouTube with the details.

Thanks to Don and 7173mustangs. Don gets a shout out at the end.

Rear Defroster Knob Repair

[Image: 1673if.png]
50 F1
73 Mach 1
86 F150
96 F150
2014 F150
Always looking
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#2
I would recommend you check the electrical continuity of the switch before you install it in the dash. Other than that, good job! I use a small jeweler's screwdriver every day in my harness refurbishment business: they are great for releasing pins from various connectors.

Let me check your shorts!
http://midlifeharness.com

[Image: Flamicon2.jpg]


[Image: oldfart.png]
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#3
The continuity was fine. I checked before and after the knob replacement. I actually bought a replacement switch on e-bay and installed it (checked before installation). Then I fixed the old one. Now I have a spare - at well over 6 foot, the chances of my knee breaking the replacement switch knob are fairly high!

[Image: 1673if.png]
50 F1
73 Mach 1
86 F150
96 F150
2014 F150
Always looking
  Reply
#4
Great job and thank you for posting the vid. I will need to keep this handy when my original switch breaks.

BKDunha
72 Mach 1 H-Code (Concourse driven restoration)
67 S-Code Factory GT with 4-Spd

68 Mercury Cyclone (Pro-Street project)
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#5
I was going to do this very same thing, but it looks like the 'lines' on my rear glass is probably too fargone to salvage... so I'll probably just put a nice low-profile toggle or rocker switch in there for some driving lights or something.

I remember putting a toggle switch in pretty much the same location on my '82 Mustang, and snapped off the handle as well brushing my leg against it getting out of the car one day. It's no wonder these things take so much abuse. Eventually swapped it out with a rocker switch, and never had a problem again.

Eric

[Image: mach1sig2.gif]
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#6
All,

Another possible source for the knobs would be from the 1971-73 Cougar XR-7 cars. I have the three switch device that has the same toggle knobs. I will need to look at what I have since viewing this video.

mustang7173
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#7
jb73Mach;108563 Wrote:I've posted several questions about the rear defroster switch here and received some great advice. Don suggested replacing the knob with one from a convertible top switch. It can be done. I posted a video on YouTube with the details.

Thanks to Don and 7173mustangs. Don gets a shout out at the end.

Rear Defroster Knob Repair

Gotta appreciate somone taking the time to do a video all the way from start to finish. Very cool. Thanks!

[Image: 2rr7aiv.png]

Just cruising along minding our own business when BAM!!! The LAWS show up.
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#8
Is that a Miller Lite in the background?
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#9
CZ-75;108787 Wrote:Is that a Miller Lite in the background?

That is actually a precision aluminum display form for the vintage Mach 1 coozie Wink That's my story and I'm sticking with it!

[Image: 1673if.png]
50 F1
73 Mach 1
86 F150
96 F150
2014 F150
Always looking
  Reply
#10
Great video!

[Image: keytft.png]
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