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04-07-2018
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#1 |
 
Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 247
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LH headlight
It seams there is always something to repair on a 28 year old C4 corvette. The LH headlight this morning decided it would only open 3/4 of the way. I grabbed my section 8A supplement to the FSM and after an hour of doing the diagnostics it appears they both should be working. Then I discovered I could manually spin the motor and close the headlight. tried again and the same thing,opens up 3/4 way and stops.Then I decided to spin the motor to open the headlight all the way. It was very difficult to manually spin the motor to full open but I did it. turned the lights on and then off and the headlight spun closed.Turned them on and it stopped 3/4 open again.The headlight assembly is not bound up,I can easily move it back and forth freely an inch where it stops. But I can no longer manually spin the motor to full open. I can only spin it to close and the motor will close it.
The nylon gears were replaced about 10 years ago.Does anyone believe they could bind up in this fashion or is there something else going on?
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Gary 90-1572 
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04-07-2018
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#2 |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,717
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Re: LH headlight
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04-07-2018
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#3 |
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Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 247
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Re: LH headlight
secondchance,Do you believe they have broken up in such a way that they are binding up and not allowing the gear to turn any farther than 3/4 way. I was expecting the motor to keep spinning without movement.
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Gary 90-1572
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04-07-2018
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#4 |
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Join Date: Aug 2006
Location: McLean, VA
Posts: 3,717
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Re: LH headlight
Tough to say. I would get delrin bushings and a gear just in case before disassembly. Manually turning and electric operation may have jammed it.
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04-07-2018
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#5 | |
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,120
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Re: LH headlight
Quote:
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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04-08-2018
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#6 |
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Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 247
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Re: LH headlight
Thanks secondchance and goldcylon. I'll take it apart and hopefully it will be the bushings.
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Gary 90-1572
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04-12-2018
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#7 |
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Join Date: Feb 2010
Location: Jacksonville,FL
Posts: 247
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Re: LH headlight
Well ordered a gear and bushings.They came yesterday. Took it apart this morning and it turned out to be the gear. It had split and was binding up. All is good again. Thanks.
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Gary 90-1572
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Linear Mode
