"Fun" with Fog Lights

Naturally aspirated tech and talk
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PSU_Crash
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The fog lights on my 86 are shattered and flopping in the breeze, so it was time to address this.
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The parts car fogs are in pretty good shape, although still pretty foggy from years on the road. Bulbs were even good still.
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I also have new lenses from AutoAtlanta, so it's time to dive in.
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Parts car fogs came out without any issues. Not parts car ... not so much
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I was able to depin one side (before I realized the rubber grommet would come out) Not with this one broken off and corroded though
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Getting those bucket screws out from behind the bumper is a real good time! :crazy: They were all do-able ... even this monster that required using the dreaded offset screwdriver 1/4 turn at a time. I unbolted the cooler loop thinking it would give more access. No, not really at all. :thumbdown:
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Finally got the buckets out and one is re-usable once I address the inserts with busted off screws in them.
Yes, that wood screw is all that was holding on the pass fog.
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Pressed out the insert to see what I'm working with on the snapped screws. Nope, not worth the effort.
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I took measurements and came up with a plan. Turns out where the inserts are pressed in is aprox 7.5mm ID. Perfect for tapping with an M8 x 1.25. Stainless threaded inserts to the rescure! M8x1.25 x M4x0.7. I did not use a bottom tap thinking the last 1/4" of lead in will allow the insert to self thread and stay in place. Testing on the broken bucket, it worked out perfectly!
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Next was to remove the reflectors from all 4 fogs to hopefully find 2 good ones... but how do they come out? My first attempt involved brute force and ignorance. It came apart alright! After snapping the little rubber pivot point. The rest got a razor to that rubber joint for removal. Then I went hunting the bins for a suitable replacement. Turns out vacuum line happens to be the exact OD I was looking for. Old pivot bushing on the right.
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Parts car reflectors are in GREAT shape! Just a little dusty.
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Now on to removing the lens and install the shiny new ones. I'm no rookie with getting lights apart. Lots of heat, pry/push and go slow. After heating the inside and outside of the joint to the point I was starting to melt things it still wouldn't budge. Alright then, I'll use the open vice to hold and then push from the inside out... well ...
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It was much easier to remove in pieces anyways :lol: I don't know what Porsche used to glue those in there, but it is no joke!
After a lot of scraping and heating I have most of the sealant removed.
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New lens are going to look great!
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The 4 screws that hold the buckets in were very rusty. Could I just hit the hardware store and find suitable replacements? Probably, but I'm an engineer, I'm cheap and I have gadgets. Like my DIY nickel plating setup.
I wish I had pics of the screws before the wire wheel, acid bath and then plating.
Should be good for another 40 years
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The seals were completely shot and new ones are pricey for what they are. I ordered some 5mm round EPDM weatherstripping to use instead. Should work just fine.

I need to go pull a fog bucket off the parts car yet to finish the job. That's probably where this afternoon will take me.

One last thing. Any recommendations on what to use to reseal the fog lens? Ideally so it can be removed if needed down the road. I've had good luck with outdoor rated silicone in the past, although I've never tried to get one back apart.
'86 Zermatt Silver 944 N/A :thumbup:
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap

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PSU_Crash
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Quick follow up.

Lens housings were pretty waffled. A spacer and some heat straightened those out.
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The foam gasket material worked perfectly.
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Ready to go back on with Hella bulbs.
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Done and working! after replacing some spade connectors ... of course.
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'86 Zermatt Silver 944 N/A :thumbup:
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap

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Wespa
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Nice work! On my '86 the fogs are in a sorry state, but I'm choosing an another route, namely going with the Turbo/S2 front end. :D I've had more or less all the parts lying around for over a decade now, only thing missing is a fresh coat of paint and time to disassemble and assemble everything..
Last edited by Wespa on Thu Feb 12, 2026 3:56 am, edited 1 time in total.
944 NA ROW -86

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PSU_Crash
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Wespa wrote: Wed Feb 11, 2026 11:51 pm Nice work! On my '86 the fogs are in a sorry state, but I'm choosing an another route, mainly going with the Turbo/S2 front end. :D I've had more or less all the parts lying around for over a decade now, only thing missing is a fresh coat of paint and time to disassemble and assemble everything..
Thanks!
Maybe this is a little motivation for you :D
Last edited by PSU_Crash on Thu Feb 12, 2026 9:18 am, edited 1 time in total.
'86 Zermatt Silver 944 N/A :thumbup:
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap

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zooklm1
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Great job! Would you share some more details about your DYI nickel plating setup?

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zooklm1 wrote: Thu Feb 12, 2026 5:09 am Great job! Would you share some more details about your DYI nickel plating setup?
Sure! It's really simple. Pure nickel strips, vinegar, canning salt, plastic tub and a low power power supply. Nickel strips came from amazon and I used an old cell phone charger as the power supply. You don't want much current. I try to keep it around 50mA for these small jobs. Power needs increase as the surface plating area increases.
CLEAN is the key to getting consistent plating. I found out the hard way if you handle parts before plating, your fingerprint will be obvious after plating.
Here is a break down on instructables that covers in more detail.
https://www.instructables.com/High-Qual ... l-Plating/

Here's a picture of mine in operation. Safety wire wrapped around a few screws. Agitate every couple minutes and spin the screws too. Otherwise it won't plate evenly, especially where the parts make contact with the safety wire.
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'86 Zermatt Silver 944 N/A :thumbup:
'86 Mitsubishi Starion - Purpose built SM class Autocross car
'87 Chrysler Conquest - Mid LS Swap

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