I tried to clean valve covers in a dishwasher once, I told my girlfriend at the time "This is either going to work, or you going to have a new dishwasher." It worked, but I ended up using the degreaser that I had bought for the valve covers lol

 

so I shouldn't worry about the air gaps around the back of the assembly, where the main headlight bulb is? I'm thinking maybe jamming some foam in there so it'll still let air move, but it will serve to trap any potential moisture from entering the headlamp

 

Uhh..it's on your sig sir...

 

oh THAT LOL

 

ok it worked! I ended up doing the following:

1. Stuck two silica packets in the lamp, behind the chrome bezel. I didn't do this to always absorb moisture - just whatever moisture might be lingering around when I reassembled the lamps

2. Used some memory foam donuts and trimmed to fit behind the main headlight bulb opening. It's there not to seal the lamp, just to catch any moisture that might try to sneak in from behind.

3. Used memory foam scrap for the little air-filter looking vet tube at the bottom of the lamp as well.

One thing of note - using long 36" tie straps really helped, as they held the lamp halves together until the silicone was FULLY dry. I simply laid a microfiber towel over the lense to protect the surface, then strapped the lense down in 4 places (right after installing the lense itself).

Here's I made a new thread with pics, so that people (like me before) hunting for headlight mods can find it easier:

https://www.clublexus.com/forums/sho...47#post3639347

Thanks for everyone's suggestions in this thread =D

 

I checked your other thread and your headlamps look great.

A word of warning though, while it may appear that you've solved your condensation problem .. you may be wrong. I tried two different methods and both appeared to work ... but they did not. It took days or a week to actually find out that they condensed again. The packets will definitely help but they can only absorb so much water.


Good luck ...

 

Hopefully it works, it's only been 4 days so I'll just have to give it time to see if everything is good - although I did wash the car today so it passed that test

 

I gave up on this headlight stuff. Now a days I just stuff a plastic bag, and a small towel in the corner of both lights every time I goto the car wash, or wash at home until done. Remove wipe off excess water, and I have no problems. If it rains I do the same thing, but it never rains around here so im cool.

P.S. I also try not to let too much water get in the water channels that funnels water directly onto the headlight when washing.

 

Update: no moisture at all on the left lamp, the right side gets a very very small cloud at the edge of the signal area. This weekend I'll check the seal, but it seems to cloud less and less each night (so maybe it just needs some time to evap)

 

As a side job, I used to modify peoples headlamps. Mostly S2000's, though I've now done the retrofit on the SC, a WRX headlamp, and an Accords. I've never had a problem with condensation following the same process for all of them.

First, ALWAYS use the oven method. It's the only way you can really separate the lense from the housing without deforming it. When the two pieces are apart, do NOT under any circumstances remove the original glue/seal. Just clean it up by heating it up again and scraping away any foreign debris that stick to it. Also make sure that none of the rear vents are plugged and that the proper rubber hoses are still connected to it.
Once it's ready to go back together, warm up the housing again to soften up the glue and then use a liberal amount of black all temp/weather silicone over the old glue, then clamp the lense back to the housing. Some of the excess silicone will seep out and you can just smooth it out over the lense/housing intersection. Then apply another thin bead of silicone around the two halves and let it cure for a couple hours. That will work every time. I've driven my cars through car washes, heavy downpours, and no condensation occurs for me at all. Also make sure that you reapply the rubber seal that wraps around the top part of the lense to seal the gap between the hood and the headlamps.

 

Unless you don't care about the OEM ones.

 

Well, not really regarding that, but just to get a good seal when you put it back together and to save alot of time. 5 mins in the oven vs. 30 mins to pry apart the headlamp using a heatgun. I've used both methods and there is no other way that will be as good and as quick.

 

Silica works since that's it's job, but stock headlights don't need silica so there's a problem.

Most of the time it is people not replacing the air filters that come on the stock headlights, or losing the rubber snorkels. These are the only thing that filter condensation so if you don't have them, you will get condensation.

People think they didn't seal it up properly when the reality is that it likely IS sealed properly... that's what's trapping the condensation to begin with.... it's air tight!

 

I agree. Many people whoe do this are so overly concerned with completely sealing their units that they forget (or ignore) the fact that these units MUST breathe. If you completely seal them they will condense.

 

any build up of dirt in there?