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The Complicated C3 Corvette Vacuum Operated Headlight Assembly

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Today we're taking a closer look at the C3 Corvette flip up headlight assembly to highlight the major components it is made of of and illustrate how the vacuum actuated hinge mechanism articulates to raise and lower the headlights.
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Опубликовано:

14 авг 2024

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Комментарии : 32

@rtkracht 2 года назад

Good instructive video. When I last drove my ‘76 (20 years ago) both lights were working fine. Once I get it road worthy again this will be a great reference should things go sideways.

@VetteSource 2 года назад

Thanks Rusty, I'm sure the headlights will be one of those items needing attention after long term hibernation.

@thedrivewayC3 Год назад

Thanks - I’m about to build these. Very helpful

@VetteSource Год назад

Excellent, glad to hear👍

@thedrivewayC3 Год назад

@@VetteSource Did you guys ever do an assembly video?

@VetteSource Год назад

I have not yet. I've got that on my video to do make list👍.

@crawford323 Год назад

This reminds me of the retraction mechanism on a landing gear on an aircraft.

@VetteSource Год назад

Man, excellent comparison! I was just riding back home on an A319 and was checking out the landing gear because it was making so much clunking noise while we were taxiing😁.

@robwhite3241 2 года назад

You said something about headlight washers/squirters, were they available in the Us or were they for foreign markets only? Thanks!

@VetteSource 2 года назад

Hey Robert, they were standard equipment on all 68 and 69 Corvettes. They discontinued them in 1970, most likely because it was a complex system that was difficult to maintain. I actually did a video on the headlight washers a few years back - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Ng5FO8-bP4E.html

@Reallypeople1000 6 месяцев назад

Where is the video for installing the headlight assembly piece by piece? It was no easy feat getting them out!

@VetteSource 6 месяцев назад

Oh yea, they're no fun getting in and out of the car. I have that video on my to-do list. Thanks for the comments👍

@Reallypeople1000 6 месяцев назад

@@VetteSource Standing by! 😁

@alzg8779 2 года назад

I have a 76 so this is great! Brakes question if you don't mind. Calipers fairly new, Master cylinder new, booster works and adjusted, yet my pedal is very low. No leaks or air in the system...any ideas on what the problem might be? Any help REALLY appreciated...Thank you for the videos! Al

@VetteSource 2 года назад

Al, no problem. Glad you're enjoying them👍. The C3 braking system is notoriously finicky to bleed. Did you bench bleed the master cylinder before installing? They will trap air in the lines between the master and proportioning valve, which forces you to gravity bleed the system from component to component.

@alzg8779 2 года назад

@@VetteSource Thank you for getting back...I will check but believe that was done, if so, is it new calipers time? if so, is it ok to try it in pairs, maybe the front 2 first? Thank you very much!

@VetteSource 2 года назад

Yep, if everything looks good from MC to proportioning valve, I would go with front calipers first, and then move to the rear. The idea is to eliminate all possible sources of trapped area. I will say the proportioning valve is a known trouble area for trapped air, so you might want to try cracking the lines and leaving it for awhile to gravity bleed.

@alzg8779 2 года назад

@@VetteSource Thanks so much! Appreciate it!

@zameul35 Год назад

I believe the assembly cover is aluminum not steel or at least they are on an 82.

@VetteSource Год назад

I haven't heard that one before.

@Manawy-uv4mz 2 года назад

When I had my 72 i got half lucky it was the headlight switch

@VetteSource 2 года назад

Yep, that's an often overlooked component in the vacuum circuit that can spring a leak. Luckily it's easier to get to than some of the other vacuum items. Thanks for the comments👍.

@andip8495 5 месяцев назад

ALSO WATCH YOUR FINGERS IF IT DROPS ON YOU. EXPERIENCED 70 OWNER

@VetteSource 5 месяцев назад

For sure, nothing like pinching or getting your fingertips caught in the very narrow gap when it closes😁.

@gmcnelly2468 2 года назад

What's a good guess on the weight of each C3 assembly??

@gmcnelly2468 2 года назад

Forgive me, I missed the weight estimate on the first go-around.

@VetteSource 2 года назад

No problem, each one weighs in at around 20 lbs, specifically the early ones with the metal headlight surround bezel.

@gmcnelly2468 2 года назад

@@VetteSource Thanks

@flatworm00 2 года назад

And to think GM actually paid people to come with this design

@VetteSource 2 года назад

I think it was more along the lines of just how complicated can we make the vehicle accessories? You thinknthis is bad, you should see the vacuum operated windshield wiper door hinge actuator mechanism🤪.

@flatworm00 2 года назад

@@VetteSource I am doing a frame of resoration of a 1969 T-Top. I started out with lots of hair, sense of humor and sober...now none of those are true!

@VetteSource 2 года назад

Yep, it'll definitely test your patience and sanity🤪.