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Corroded FC light sockets
Posted by: jack bacon ()
Date: June 07, 2017 09:01AM

The bulb in my taillight housing is corroded. I had to twist the glass bulb off and then use a pliers to pull out the base. What's the best way to clean up the corrosion so I don't have to get another housing.

Thanks,

Jack

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Re: Corroded FC light sockets
Posted by: MattNall ()
Date: June 07, 2017 09:09AM

Small round Brass wire brush and lots of penetrant..

Make sure you have less than 1/2 ohm resistance from the inside of the brass socket to the outer mounting shell when done.





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Re: Corroded FC light sockets
Posted by: corventure Dave ()
Date: June 07, 2017 11:42AM

I have worked the rubber boot back off the wires on the back of the tail light housing. This way I can push the wires up out of the socket enough to clean the wire contacts.
If the springs are rusted out, cut the wires and replace the springs. I have grabbed good springs from otherwise mangled tail light housings.
I bead blast the light socket to clean out dry corrosion. Then spray with WD40.Then pull the wires back into place.
Finally... I solder a ground wire on the outside of the light socket housing and run it to a wire eyelet that I screw to the FC body behind the tail light housing.

That's about what I do with these....... Oh...
I also have installed a small bulb in the outer corner of the tail light housing. I wire it for signals and brakes. This adds about 30% more brake and signal light when activated. An LED would work here also.

smileys with beer

Corventure Dave

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Re: Corroded FC light sockets
Posted by: SteveInMarietta ()
Date: June 07, 2017 03:54PM

Clarks sells a replacement socket C6172 that can be fitted onto the housing.
Steve

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Re: Corroded FC light sockets
Posted by: jack bacon ()
Date: June 07, 2017 08:52PM

Thanks everyone!

Jack bacon

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Re: Corroded FC light sockets
Posted by: cnicol ()
Date: June 08, 2017 06:56AM

Purchased at NAPA. Shrink tube added to make it look more original.

The trick is to carefully remove the original socket without damaging the housing. I used a hacksaw, then a grinder. once the rusty hole is revealed, clean it to bare metal with a wire brush or scotchbrite. Same solution front and rear.

Craig N. Coeur d'Alene ID.
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Edited 1 time(s). Last edit at 06/08/2017 06:57AM by cnicol.

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Re: Corroded FC light sockets
Posted by: cnicol ()
Date: June 08, 2017 07:02AM

Here's what the housing should look like after clean-up. It has to be clean so it can provide a good ground to the bulb.

Craig N. Coeur d'Alene ID.
66 Black Monza 4dr, 4.2L V8 49k
61 Seamist Jade Rampside 140 PG
60 Monza coupe (sold, sniff sniff)
66 Sprint Corsa convt - First car! Re-purchased 43 years later
2+2 gnatsuM 5691

+17 Tons of parts

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Re: Corroded FC light sockets
Posted by: jack bacon ()
Date: June 08, 2017 10:16AM

Thank you Craig, off to NAPA..........

Jack

CORSA Central Division Director
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Re: Corroded FC light sockets
Posted by: corventure Dave ()
Date: June 08, 2017 10:45AM

Good info Craig.thumbs up
We don't seem to get the severe corrosion here on the Southern Left coast!

smileys with beer

Corventure Dave

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Re: Corroded FC light sockets
Posted by: jack bacon ()
Date: June 29, 2017 05:43PM

I purchased and installed a repair socket from Clark's c6172 I think and it is too deep a 1157 bulb, aargghh!The priginal socket is much more shallow

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garagejournal.com
1972 Honda CB175
1962 Rampside baby blue

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Re: Corroded FC light sockets
Posted by: jack bacon ()
Date: July 02, 2017 09:51PM

Just can't get a 1157 bulb to seat in the socket, so it's off to NAPA tomorrow

Jack

CORSA Central Division Director
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Corvair Minnesota President
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Iowa Corvair Enthusiasts
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garagejournal.com
1972 Honda CB175
1962 Rampside baby blue

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Re: Corroded FC light sockets
Posted by: JimBrandberg ()
Date: October 12, 2017 05:22AM

I just dealt with this yesterday with a Van tail light. Replacement socket marked "1157 replacement" off the shelf would not take 1157 bulb, the tooling was off and the indentation was not deep (wide) enough.It barely showed on the outside of the socket. Of course I was back home after 24 mile round trip. So I was off in another direction for another 24 mile round trip. I will always try a bulb before I leave the store in the future.
I had to solder a ground wire on the outside of the socket, the prongs just wouldn't do it, testing with a battery on the bench.
The Van had a broken wire in the rear harness (non-stock cobble job) bad socket in the tail light and out of adjustment cable on the turn signal switch.
I've got 2 extras for future use now. While not ideal at least it is a workable solution.
Key word for future search FC or Early tail light socket. Part numbers:
Dorman 85803
NAPA LS6428
Jim Brandberg
Isanti, MN
CorvairRepair.com

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