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Old 03-05-2022, 04:07 PM
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mccutter mccutter is offline
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Smile Repairing 3rd Brake Light Mounting Tabs

Repairing a trunk-mounted 3rd brake light...

The first, third and fourth pics show a damaged 3rd brake light that allowed water to leak into the trunk. The arrow points to water staining.

The second pic shows a decent specimen picked from a junk yard for $10. It had a couple broken tabs that needed to be fixed because they help keep pressure on the rubber seal against the trunk. New from the dealer this part is $110!

With a strip of 16ga Al, the trusty ol' Whitney #5Jr hole punch (4-44 date code ), Craftsman snips I've had for over 40 years and various other tools I made a couple little metal tabs.

You can see how I used a steel strip with Sharpie line to help guide the location of the tabs. Paper clips hold it and the tabs in place. The inside hole allowed epoxy to squish through helping to retain them. Not shown is that the tabs and light housing have been scored with a scribe to help the epoxy adhere.

Broke out some new JB Kwik for the job. Used a HF Carving Set "spoon" to glop the epoxy into the void in the housing, then pushed the tab in and clamped, then glopped some more epoxy on top of it. I keep used utility knife blades around for spreading epoxy. When dry, the cardboard, blade and excess go right into the garbage.
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  #2  
Old 03-06-2022, 02:22 PM
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Forgot to add these pics of testing the LEDs. For S&Gs I removed the LED strip from the old brake light and using a couple upholstery pins, clamp and 9V battery the strip still works fine. Unfortunately, they don't sell any of the components like lens, housing, gasket, LED strip separately.

The new was tested with clips on the terminals which was a little easier than the pin method. Cardboard is used as an insulator.

When testing LEDs, if it doesn't work one way, switch the polarity of the leads to check it in the opposite current flow. They ARE diodes after all...
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__________________

TA Arcmaster 185 w/tig/stick kit
MillerMatic 252 w/3rd gen 30A
MM140 w/o AS, w/CO2
Hobart (Miller) 625 plasma
Hobart 250ci plasma
Victor O/A (always ready, but bored)
HF 80 lunchbox w/tig
45ACP Black Talons for those stubborn jobs...
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  #3  
Old 03-06-2022, 04:41 PM
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Nice fix!!
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