North American Turbocoupe Organization



Darn Head lights leaking
57fan Offline
Member
#1
So here we go again. I put in a new set of factory headlight about 16 months ago (thanks to Pete and his raffle) and now I have the drivers side leaking moisture into the light. Has anyone actually found where the water / moisture is entering the lights? I have not been able to locate where the water is entering. any help would be appreciated


Scott
87 Turbo, 5 spd, full loaded with sun roof.
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Timmay Offline
Senior Member
#2
Just a guess but if they are factory sealed headlights then its prolly coming in around the plug might need a new gasket
1988 Turbocoupe- RIP in a place without rust!
1978 Mercury Bobcat super clean-2.3T, t5 trans, 8.8 rear 3.73 gears 31 spline axles,255 walboro in-line,MBC,3 inch exhaust,4 wheel disc brakes,5 lug
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bang4thebuck Offline
Senior Member
#3
you can also take it out of thecar and blow into the hole where the actual light goes in. You will hear a leak if its coming from where it is glued from the factory. if you hear it feel around the seam and locate it. when you find it put some clear silicone there and let it dry. After that stuff a wash rag into the light and get some sort of long stick or something to push the wash rag around to soak up any remaining moisture.
1987 TC 5 speed. To date: AGP 50 trim T3/T4 .63 stage 2 turbo, Ebay bov, 28psi, 255hp pump, Kirban FPR, Ebay Front mount, Full 3 inch Exhaust, Ported Bob's Log, Megasquirt, 55lb. injectors, boport 1.5 cam, boxed lower control arms, Methanol Kit, Ram HD Clutch, front lowered 1/2 inch and E.T. Streets for the track. Best so far 12.5 at 110.8. still tuning.
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TurboCoupe50 Offline
Posting Freak
#4
More often than not it's the seam leaking where the lense joins the housing... What I've done is run a thin bead of silicone rubber around the housing, then wrap it with Teflon tape before it cures... Never had one leak after this treatment...
1988 Turbo Coupe331 AOD

1972 Comet GT

1969 Fairlane Cobra 428CJ 4-Speed
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57fan Offline
Member
#5
Well I got the light out today and it has been sitting with my wife's hair dryer on it for about 30 minuets after i got all the water out. I cannot find a leak anywhere but I still plan on sealing the lenses. Tried this on my last lights but it did not work either. Its always the left light that I have had problems with. When I pulled out the light it self there was definitely a pressure difference since it made a loud pop for a light being removed. don't know if it was pressure or vacuum. Any ways....

Mid 90's Aerostars have a vent and hose out of the top of the light lenses. Wondering if anyone has tried this to get air in and out?
87 Turbo, 5 spd, full loaded with sun roof.
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Pete D Offline
Administrator
#6
There are plenty of past posts on people drilling small holes on the bottom of the lenses to let out moisture, let drying air in. I realize that doesn't find a leak, but people report it dies work for them
Pete Dunham


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BJL Offline
Moderator
#7
i ran a bead of silocne around the where the lense meets the bezel like turbocoupe50 did. i let the light sit out in the sun all day with out a bulb in it to get the moisture out completly and let the silicone dry. there is a "flowable" silcone they make just for this purpose. i bought it at advance auto parts.
Brian Larkin
88TC 330,000 miles
Slightly Modified
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57fan Offline
Member
#8
Brian do you know the brand name of the silicone??
87 Turbo, 5 spd, full loaded with sun roof.
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Jeff K Offline
Administrator
#9
Look for silicone labeled something like "windshield leak sealer". It is about as thick as thick syrup.
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
11 Crown Vic Interceptor
14 Toyota Camry (wifes car)
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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etc1006 Offline
Member
#10
I've also used the shop vac on it at the bulb mount to help "suck" the sealer into the leaking areas.
-Eric
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