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| GM's interesting concept on hidden headlights. (Page 1/1) |
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Spoon
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APR 10, 09:23 PM
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I came across one of GM's idea of a hidden headlight system and found it to be amusing. No more stuck lights or one up and the other down, yada yada.
Take a look. Share your thoughts.
https://www.youtube.com/watch?v=IRek3vXn8rM
Spoon------------------
"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut
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Crasian
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APR 10, 11:03 PM
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Reminds me of my ‘68-‘69 GTO’s with hidden headlights. System was cool for its time but I always dealt with the doors either stuck open or closed. Always dealt with issues, but hey, it was hella cool to have
-Crasian[This message has been edited by Crasian (edited 04-10-2019).]
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theogre
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APR 11, 02:41 AM
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Sorry but that and GTO HHL systems had problems too. As bad or worse then Gen1 electric.
Most are Vacuum "Motor(s)" operated and often have broken "doors" and dead vac parts causing big headaches.
Not sure about above. GTO and others use 2 vac motors to shut them and springs to open. When, often not if, the system have vac problems then springs keep the doors open.
Vacuum Switch part of HL Switch causes a lot of problem too. Example: To stop doors Slamming open, inlet side of switch is very small to let air in so motors act as spring braking. Switches can leak or plug and door slam, stay open/close, or HHL can cause engine vac problems.
Friend of family has GTO and very expensive to fix and had to fix 2 times that I know of for damage to HL doors.
Many cars had, some still use, vacuum motor(s) as part of AC/Heat controls and have issue w/ them too.
Motor or switches can leak etc and hard to fix and often expensive when they do. In many cases, you had to tear apart the entire dash to get at a iffy vac motor and that eats expensive Labor Hours alone.
Old Jeeps and others (mostly Trucks) use Vac or Air powered Windshield wipers and had big problems w/ them. Many old Jeep got upgrades to have electric wipers but often had problem w/ them too because requires small motors.
Some cars even had Vacuum power trunk locks. Above maybe one of them. I might still have the Vac Switch and piston from an old Cady w/ this feature.------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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olejoedad
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APR 11, 08:04 AM
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I'd gladly trade a Fiero for that Toronado!
Sweet ride!
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Spoon
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APR 11, 06:10 PM
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| quote | Originally posted by theogre:
Sorry but that and GTO HHL systems had problems too. As bad or worse then Gen1 electric.
Most are Vacuum "Motor(s)" operated and often have broken "doors" and dead vac parts causing big headaches.
Not sure about above. GTO and others use 2 vac motors to shut them and springs to open. When, often not if, the system have vac problems then springs keep the doors open.
Vacuum Switch part of HL Switch causes a lot of problem too. Example: To stop doors Slamming open, inlet side of switch is very small to let air in so motors act as spring braking. Switches can leak or plug and door slam, stay open/close, or HHL can cause engine vac problems.
Friend of family has GTO and very expensive to fix and had to fix 2 times that I know of for damage to HL doors.
Many cars had, some still use, vacuum motor(s) as part of AC/Heat controls and have issue w/ them too.
Motor or switches can leak etc and hard to fix and often expensive when they do. In many cases, you had to tear apart the entire dash to get at a iffy vac motor and that eats expensive Labor Hours alone.
Old Jeeps and others (mostly Trucks) use Vac or Air powered Windshield wipers and had big problems w/ them. Many old Jeep got upgrades to have electric wipers but often had problem w/ them too because requires small motors.
Some cars even had Vacuum power trunk locks. Above maybe one of them. I might still have the Vac Switch and piston from an old Cady w/ this feature.
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Good coverage theogre. I had a 74 Lincoln MK-IV with hidden headlights but never a problem. My current Jeep uses small electric motors for the HVAC system and the ventilation doors made of plastic would crack from the tension of the motors usually defaulting to cold air in the winter.
You're correct about tearing the entire dash out to replace the doors but I found a site that sells a replacement kit with metal doors and a slick way to replace them without pulling the dash or blowing the A/C charge. It worked for me and I believe a dealer would charge nearly a thousand to do it and that was 5 years ago.
Oh yes my 60 Pontiac has a vac-switch for the truck release and still works perfectly at 68k original miles. Amazing how some of the older vehicles hold up compared the the newer ones.
Spoon
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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut
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Mickey_Moose
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APR 12, 12:34 PM
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| quote | Originally posted by Spoon:
You're correct about tearing the entire dash out to replace the doors but I found a site that sells a replacement kit with metal doors and a slick way to replace them without pulling the dash or blowing the A/C charge. It worked for me and I believe a dealer would charge nearly a thousand to do it and that was 5 years ago.
Spoon
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Link please. 
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cvxjet
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APR 12, 01:48 PM
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The 1930s Cord had hidden headlights with LEVERS to actuate them.........Look up "Hidden headlights" in Wiki and they go thru the history and list all the cars......I seem to remember at least a few cars having their flip-up headlights connected by a torque rod so they were always synchronized and only needed one motor.
On my '73 mach 1 I had a Philco/Ford AM radio COVER I designed and made that was controlled by a vacuum dashpot....Start the car and the cover would suck in above the radio...Shut the engine off and it would extrude out and I would flip it over my super-cool Alpine AM/FM Cassette stereo that everyone wanted to steal (This was the 90s (Yes, I have always been behind the times)
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Spoon
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APR 13, 09:04 AM
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| quote | Originally posted by Mickey_Moose:
Link please.
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I replaced my heater doors in October of 2014. I keep good records and here is what I recorded at that time.
KIT WAS CRAP. FOAM ON DOORS CAME LOOSE RIGHT AWAY. EXTENDER ADAPTERS FOR PIGGYBACK MOTOR HAD SCREW SIZE BIGGER THAN ORIGINAL SCREW AND CAUSE CRACKING OF PLASTIC IF USED. HAD TO FABRICATE SOMETHING TO WORK. THE COPPER SPACER WAS REGULAR STEEL SPACER. VERY POOR INSTRUCTIONS AND WORDING. PIC'S HAD OVERFLASH FROM CAMARA CAUSING BLEACHED OUT AREAS OF INTEREST.
https://heatertreater.net/j...grand-cherokee-98-04
I corrected the above problems before install and it's been working fine. I did not have to replace the Re-circ Door since it was okay.
Maybe the current kits are of better quality as far as workmanship and instructions. I paid $240. at the time. Probably cheaper now.
Spoon
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"Kilgore Trout once wrote a short story which was a dialogue between two pieces of yeast. They were discussing the possible purposes of life as they ate sugar and suffocated in their own excrement. Because of their limited intelligence, they never came close to guessing that they were making champagne." - Kurt Vonnegut [This message has been edited by Spoon (edited 04-13-2019).]
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