Headlight Noise/knocking - ZR-1 Net Registry Forums

Johnny5 · 02-05-2016

So i went to start up the Z to let it run for a little since I haven't driven it in 3 months and when I turn the headlights on than off I hear a knocking coming from the pop up headlights. The headlights turn on and off and rotate properly but when they close I hear a knocking sound? Anyone have this issue or know what the problem is?

efnfast · 02-05-2016

Sounds like the gears are on the way out.

Jagdpanzer · 02-05-2016

Common C4 issue. Time to replace the 3 plactic bushing cushions in the hub of big drive gear. Plenty of how to articles on the Internet.

G8nightman · 02-05-2016

Gears for sure I replaced mine with updated metal ones.

Johnny5 · 02-08-2016

Thanks for tbe advice brothers

lisounds · 02-09-2016

Corvette Headlight Motor Gear Kit, 1988-1996

http://www.ecklerscorvette.com/corve...1988-1996.html

Johnny5 · 02-12-2016

So i read on corvette forums, guy had same issue where the headlights rotated fine but made noise and everyone said if it flips open and closed find it was not gears but the metal balls/bearing that need to be replaced, you can find em from ford window motors. When the salt clears i will take them apart and imvestigate.

Johnny5 · 02-12-2016

Quote:

Originally Posted by lisounds

Corvette Headlight Motor Gear Kit, 1988-1996

http://www.ecklerscorvette.com/corve...1988-1996.html

Hey LI Sounds, i bought my gf that headunit for V Day so i will recommend your shop for install.

dredgeguy · 02-12-2016

Like Phil said, it is the 3 plastic bushings that turn to dust. Three needed per side and you are correct, they are labeled for Ford window assembly in the specialty section of Advance Auto. Costs about $6 dollars. This is all you will need.

G8nightman · 02-12-2016

You will have to open it and have it all apart anyway. I would do the gears instead of doing it twice just swap the gears as well just 50 bucks. What happens if you take it apart and the gears are shot as well?

02-05-2016	#1
Johnny5 Join Date: Nov 2014 Location: New Jersey Posts: 363	Headlight Noise/knocking So i went to start up the Z to let it run for a little since I haven't driven it in 3 months and when I turn the headlights on than off I hear a knocking coming from the pop up headlights. The headlights turn on and off and rotate properly but when they close I hear a knocking sound? Anyone have this issue or know what the problem is?

02-05-2016	#2
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,583	Re: Headlight Noise/knocking Sounds like the gears are on the way out.

02-05-2016	#3
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,651	Re: Headlight Noise/knocking Common C4 issue. Time to replace the 3 plactic bushing cushions in the hub of big drive gear. Plenty of how to articles on the Internet. __________________ Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake

02-05-2016	#4
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,192	Re: Headlight Noise/knocking Gears for sure I replaced mine with updated metal ones. __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

02-08-2016	#5
Johnny5 Join Date: Nov 2014 Location: New Jersey Posts: 363	Re: Headlight Noise/knocking Thanks for tbe advice brothers

02-09-2016	#6
lisounds Join Date: Jan 2011 Location: Long Island, New York 11542 Posts: 147	Re: Headlight Noise/knocking Corvette Headlight Motor Gear Kit, 1988-1996 http://www.ecklerscorvette.com/corve...1988-1996.html

02-12-2016	#7
Johnny5 Join Date: Nov 2014 Location: New Jersey Posts: 363	Re: Headlight Noise/knocking So i read on corvette forums, guy had same issue where the headlights rotated fine but made noise and everyone said if it flips open and closed find it was not gears but the metal balls/bearing that need to be replaced, you can find em from ford window motors. When the salt clears i will take them apart and imvestigate. Last edited by Johnny5; 02-12-2016 at 03:13 PM.

02-12-2016	#9
dredgeguy Join Date: Aug 2012 Location: Ellicott City, MD Posts: 1,727	Re: Headlight Noise/knocking Like Phil said, it is the 3 plastic bushings that turn to dust. Three needed per side and you are correct, they are labeled for Ford window assembly in the specialty section of Advance Auto. Costs about $6 dollars. This is all you will need. __________________ Charlie __________ Dredgeguy WAZOO Member 1992 Bright Red/Black ZR1 #246 Dana 4:10 gears Polished LT5 by Haibeck Polished Fikse FM5's with Michelin Pilot Sport 2 Stainless Works headers and cats with Corsa

02-12-2016	#10
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,192	Re: Headlight Noise/knocking You will have to open it and have it all apart anyway. I would do the gears instead of doing it twice just swap the gears as well just 50 bucks. What happens if you take it apart and the gears are shot as well? __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"